Download LDO

DC-DC Power Management ICs
IRU LDO and Switching Controller ICs
Odile Ronat
Director of Outbound Marketing
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
1
Presented By:
• Odile Ronat, Director Outbound Marketing
– [email protected] or +1(310)252-7139
– Over 14 years of technical sales and
marketing management experience
– Responsible for product launches, promotion
and sales training for all core products
(discretes & ICs)(excludes High Power, Hi-Rel
and EMS)
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
2
Training Objectives/Products
• Review LDO and Switching Controller IC product line
– Applications and Target Markets
– Sales Tips
– Review of Voltage Regulators
– LDO family
– PWM IC family
– Competition
• Introduce new IRU1120 and IRU3038
• Preview of upcoming IRU3046/IRU3047
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
3
Target Applications
• Step-down Voltage Regulators
– Up to 7.5A using LDOs
– 1 to 20A using PWM switching controller ICs
and MOSFETs
» Roadmap up to 100A
– Single and multiple power output requirements
Voltage bus
5V and/or 12V
Voltage, Current
Requirements
Main Processor
Voltage, Current
Requirements
Memory
Voltage, Current
Requirements
I/O
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
4
Target Markets
• PC and related applications
– Motherboards
– Memory cards
– I/O, Hot Swap, USB, RS-232
– Printers
– POS terminals
– Industrial PC
– LCD, CRT Monitors
– LED Display
– Graphics cards
– Sound cards
– Disk drives
– CD-ROM readers/writers
• Networking and telecom
– Wireless modems
– Cable modems
– xDSL boxes
– Ethernet card
– LAN/WAN interfaces
– Home LAN
– Routers
– Switches
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
5
Target Markets
• Consumer Electronics
– Set-top boxes
– Game stations
– Digital cameras and
docking stations
– GPS
– HDTV , Flat panel TV
– Internet appliances
– DVDs
• Security Systems(AlarmsMicro Controller based4/8/16 bits)
• Projectors
• Industrial Controls
(Microcontroller based)
• Power Supplies (Silver
Box)
• On-board DC-DC
converters
Any application that uses microprocessor, microcontroller, DSP
or ASIC requiring local on-board converter.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
6
Design Wins Examples
•
•
•
•
•
•
•
Graphic cards
– Nvidia, ATI, Matrox
– IRU3037, IRU3004, IRU1117 and IRU1205
PC
– AMD K8 Desktop (IRU3037CSTR and IRU1175CSTR)
Motherboards
– Intel (IRU1150)
– Elite (IRU3013)
– Asus
Disk drives
– Western Digital (custom products)
POS terminal
– Hypercom (IRU1117 and IRU1205)
Set-top box
– Keen Personal Media (IRU1205-33, IRU1206-33 and IRU1209)
Telecom
– RLX (IRU3037 for the GTL 1.25V and 2.5V rail and IRU3038 for termination voltage)
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
7
Sales Tips
• Target new designs where architecture is not determined
• Find out systems requirements
– Set of input voltages and currents available
» Typically 12V and/or 5V
– Output current and voltage rail requirements
» Typical output voltage 3.3V, 2.5V, 1.8V
– Special feature set needed in the system
» PowerGood, Overcurrent protection, VID, Overvoltage
protection
– Second order requirements:
» Thermal performance, transient requirements, space
requirements…
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
8
Sales Tips (Advanced)
• Draw block diagram to illustrate system
requirements
Bus Voltage
5V and/or 12V
Voltage, Current
Requirements
Main Processor
Voltage, Current
Requirements
Memory
Voltage, Current
Requirements
I/O
• Use IRU selection guide to place IRU product,
combining blocks when appropriate
• Add external components where required to
deliver power (MOSFETs, diodes, etc.)
• When you are stocked, call the FAE!
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
9
Set Top Box with IRU Devices
Linear
Regulators
+12V
+5Va,+3Va,
SB 5V.
+5V @ 4A
System, LAN..
IRU3037
IRU3011
Vcore @ 14A
CPU
+3.3V @ 3A
System
IRU3037
LDO
Vtt, for
Pentium CPU
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
10
LCD Monitor Using IRU3007
+12V
IRU3037
+5V @ 3A
IRU3037
+3.3V @ 3A
LDO
IRU1120
+2.5V @ 1A
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
11
Next Gen CPU Motherboard
Multi Phase Switcher
Multi Phase Switcher
Multi Phase Switcher
Multi Phase Switcher
12V
5V
SWITCHER
Vcore(1.5V/60A)
2.5V
ICH2&MCH Hub
Bus Term & Vcc-Vid VTT and Vcc-Vid (1.2V, 4A)
AGP
AGP1.5V(1.5V, 2.5A)
LDO
LDO
3.3V
5VSB
ICH2/SIO/PCI
LDO
5VSB
3.3VSB(3.3V, 1.5A)
DDR Memory- Vddq MemVddq(2.5V, 5-20A)
LDO
Source/Sink LDO
5VSB
1.8Vs(1.8V, 1A)
LDO
DDR Vtt- 1/2Vddq MemVtt(1.25V, 1-5A)
ICH2
LDO
1.8VSB(1.5V, 0.21A)
5V
USB(4 Ports)/PS2 KB,MSE
5VSB
5VDual(5V, 3A/0.6A)
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
12
Finding Out System Requirements for
Information Appliance (I.A.)
• Yes, I will need some voltage regulators.
• My bus is 12V and I need several 5 V and 3.3V
outputs.
• I looks like I will need
– 4A @ 5V for the modem,
– 2A @3.3V for the system bus,
– 3A @ Vcore for the CPU,
– 2A@ 5V.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
13
Lay-Out System Requirements for
Information Appliance (I.A.)
+12V
+5V @ 4A
System, Modem,. .
+3.3V @ 2A
System
LDO
Vcore @ 3A
CPU
LDO
SB5V@ 2A
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
14
Information Appliance (I.A.) Using IRU 3007
+12V
IRU3037
+5V @ 4A
System, Modem,. .
IRU3037
+3.3V @ 2A
System
LDO
Vcore @ 3A
CPU
LDO
SB5V@2A
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
15
IRU product sale vs. MOSFET sale
• MOSFET sale
– Audience: component
engineer
– Design stage:
» Circuit design is at the
stage where all
components are being
specified
– Requirements:
» Voltage
» RDS(on)
» Package
• IRU sale
– Audience: system
design engineer
– Design stage:
» System requirements
are specified such as
bus voltage available
and IO and Vout
requirements
– Requirements:
» Features required
(number of outputs,
PGOOD, etc)
» Bus voltage available
» IO and Vout
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
16
Questions to Qualify Customers
• Does your design require power management?
• What bus voltages do you have available?
• What output rail currents and voltages do you
require?
• What other features does your circuit require?
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
17
Voltage Regulators
• Provide clean regulated voltages to various loads
such as micros, motor controllers, low voltage
logic circuits and drivers while offering protection
and filtering from electrical transients and noise.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
18
Voltage Regulators: The Four Types
Regulator Controller
Linear
Switcher
 

 Regulator has power device on chip
 Controller has power device off chip
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
19
LDO Low Drop-Out Linear Voltage Regulators
• Regulate input DC voltage to a lower
fixed or programmable DC voltage
• Linear control
– Comparator compared Vout to Vref
– Adjust transistor proportionally to
meet voltage setting
Vin
– Very accurate
– Handle load and line changes well
• Drop-out voltage= Vin-Vout
• LDO have <1.5V Drop-out voltage
• Very LDO have <1.0V Drop-out voltage
Internal or
External Device
Vout
Load
Ref.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
20
Switching Voltage Controllers
• Chops input voltage into pulses
– The switch applies the input voltage to the filter only when
turned on
• Controller ensures that pulses add up to required Vout
• The filter averages the switching voltage to produce:
– Vout=Vin * duty cycle
– Duty cycle: % time switch is on
• MOSFET operates efficiently in its saturated state
Internal or External
Device
Filter
Load
Control
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
21
Voltage Regulator Selection
• Linear Regulators
– Simple and cheap (fewer pins & external components)
– Efficiency ~ 50 to 70%, generate a lot of heat
» The higher the Voltage Drop-out the lower the efficiency
» Limited output capability: Used for low currents (IRU up to 7.5A)
– Easy to design
» Dual output available (IRU1260/IRU2161)
– Low Noise
• Switching Regulators
– High efficient 80%+
– Higher current
– More complex design
– More expensive
– Noise/EMI/EMC
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
22
Voltage Regulators
Other Factors:
• Reliability
Controller
• Complexity
C
o
s
t
Switcher
• EMI / EMC
Controller
Regulator
Linear
Regulator
Load Power
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
23
IRU Nomenclature
• Always order sample with COMPLETE part number,
including temperature range, package and other options
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
24
Max
Dropout
Voltage
(V)
Output Current (A)
0.3
0.8
IRU1205
IRU1205-25
IRU1205-28
0.40
IRU1205-30
IRU1205-30
IRU1205-36
1
1.5
2
3
4
5
6
Simplified IRU LDO Selection
Single Output
IRU1175
IRU1176
0.50
IRU1208
IRU1209
IRU1206-18
IRU1206-25
IRU1206-33
IRU1207-18
IRU1207-25
IRU1207-33
0.60-0.65
1.2
1.3
7.5
IRU1117
IRU1117-18
IRU1117-25
IRU1117-33
IRU1160
IRU1150
NEW
IRU1010
IRU1010-18 IRU1015
IRU1030
IRU1120
IRU1010-25 IRU1015-33
IRU1030-33
IRU1010-33
IRU1075
IRU1050
IRU1050-33
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
25
IRU LDO Package Types
Designation
LDO Packaging Description
D
TO-252 D-Pak Surface Mount 2,5 -Pin
L
SOT-23 5, 6-Pin
M
TO-263 3, 5, 7-Pin
P
TO-263 Ultra-Thin Package 2, 3, 5, 7-Pin
S
SOIC Plastic Surface Mount 8, 14, 16-Pin
T
TO-220 3-Pin
Y
SOT-223 3-Pin
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
26
Part
Number
IO
IRU1176
IRU1175
7.5A
IRU1075
Max
Dropout
Max
VIN
.65V
7V
.65V
7V
1.30V
7V
IRU1160
6A
.62V
7V
IRU1050
5A
1.30V
7V
IRU1150
4A
.85V
7V
IRU1030
3A
1.30V
7V
IRU1015
1.5A
1.30V
7V
IRU1209
1A
.65V
12V
IRU1208
1A
.65V
12V
IRU1010
1A
1.30V
7V
IRU1117
0.8A
1.30V
7V
IRU1205
0.3A
.4V
10V
L5
Y
D
S
P
P
P
P
M
M
M
SOT-23
SOT-223
TO-252
(D-PAK)
Power SO8
Ultra
Thin-Pak
Ultra
Thin-Pak
Ultra
Thin-Pak
Ultra
Thin-Pak
TO-263
TO-263
TO-263
5 Leads
3 Leads
2 Leads
8 Leads
2 Leads
3 Leads
5 Leads
7 Leads
3 Leads
5 Leads
7 Leads
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
27
IRU LDO Pricing
Disti Cost
Output Current (A)
Dropout (V)
0.40
0.3
0.8
1
1.5
2
3
4
5
6
IRU1205CLTR
$0.22
IRU1175CMTR
$0.82
0.50
IRU1206-18CYTR
$0.40
0.60-0.65
1.2
1.3
7.5
IRU1160CMTR
$0.81
IRU1117CYTR
$0.20
IRU1150CMTR
$0.42
IRU1010CYTR
$0.19
IRU1015CMTR IRU1120CLTR IRU1030CMTR
$0.41
$0.55
$0.41
IRU1075CMTR
$0.64
IRU1050CMTR
$0.44
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
28
New product: IRU1120
• Stable with Ceramic Capacitors
•
•
•
•
•
•
•
•
•
– Smaller, higher performance
2A Adjustable LDO
1.3V dropout voltage
Internal Thermal Shutdown
2% Voltage Reference Initial
Accuracy
Available in 5-Pin Ultra Thin-Pak
Output current limiting
Differentiation from competition
– Dual Input Supply
– Stable with Ceramic Capacitors
– $0.55 disti cost
Sample available Mar 02
Demo board available Mar 02
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
29
Dual Output IRU LDO
•
IRU1260
– 6A (1.3V dropout), 1A (0.6V
dropout) Output
– Adjustable
– 7-pin package (IRU1261CPTR @
$0.99 disti cost)
3.3V
C1
C2
Vout1
U1
Vin
Vout2
US1260
Gnd
Vfb2
•
•
IRU1261
– 6A, 1A dual ouput
– 1.5V and 2.5V fixed output
– 5-pin package (IRU1260CPTR @
$0.99 disti cost)
2.5V / 1A
R1
Vfb1
Vctrl
7
6
5
4
3
2
1
R2
1.5V / 6A
R3
C4
C3
R4
R5
C5
1260app7-1.0
5V
Application: simple logic, rambus
memory, graphic chips
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
30
LDO Competition
• Cross reference includes over 500 parts
• Linear Tech
– First company to mass market LDO
– Focus on high-end LDO
• Semtech
– Strong presence in LDO
– Aggressively priced
• Fairchild, AMS, STMicro
– Aggressive Pricing
• Sipex/Alpha Semiconductor
– Very aggressive in niche market
• National, ON Semi, Linfinity
• Micrel IRU120x competition
» Pin Compatible with MIC39100/101/102 series
»
1206-xx with MIC39100-xx
»
1207 with MIC39101
»
1209 with MIC39102
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
31
PWM Switching Controller
• Increase efficiency to 80% +
– Reduce drop-out voltage
– Synchronous vs. non-synchronous
Control FET
Control
+
Load
LOAD
Control
Sync FET
Synchronous Regulator
Non- Synchronous Regulator
• More efficient
• For Vout 1.8 and below
• Simpler
• Less efficient
• For Vout 2 to 5V
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
32
IRU3034
Sync
Output 1
Output 2
Output 3
1.25 - 3.5Vout
Max. Supply
Voltage(s)
20V
l l
Thermal
Shutdown
Non-Sync
Linear Controller Reference
Short Circuit
Protection
Number
Switching Controller
DAC
Part
Soft Start
Function
Power Good
IRU PWM Controllers and Combos
Package
Disti Cost
SOIC TR
8-leads SOIC
$
0.90
IRU3037
1.25 - 10Vout
30V
l
8-leads TSSOP
8-leads SOIC
$
0.79
IRU3038
1.25 - 10Vout
30V
l
14-leads TSSOP
14-leads SOIC
$
0.84
IRU3011
1.3 - 3.5Vout
7V / 20V
l l Œ
20-leads SOIC
$
1.86
8-leads SOIC
$
0.90
IRU3033
1.25 - 3.5Vout
1.26V
20V
IRU3004
1.3 - 3.5Vout
1.5V
1.5V
10V / 20V
l l l Œ
20-leads SOIC
$
1.86
IRU3018
1.3 - 3.5V out
1.26V
1.26V
7V / 20V
l l l Πl
24-leads SOIC
$
2.46
IRU3021M
1.3 - 3.5Vout
1.5V
1.8V
3.3V / 1.5V
7V / 15V
l l l Œ
28-leads SOIC
$
1.76
IRU3013
1.050 1.825Vout
1.2V
1.2V
0.8V
7V / 20V
l l l Œ
24-leads SOIC
24 leads QSOP
$
2.46
IRU3027
1.075 1.850Vout
1.5V
1.8V
3.3V / 1.5V
7V / 15V
l l l Œ
28-leads SOIC
$
1.76
2 - 3.5Vout
1.26V
1.26V
7V / 20V
l l l Πl
28-leads SOIC
$
2.62
IRU3007
3.0 - 3.5Vout
feature loss-less
sensing
the RDS(on)
of the high
sideare
MOSFET
as the
sensing
ΠThese products
PROPRIETARY
INFORMATION
- These current
documents
and by
theusing
information
contained
therein
proprietary
and
are notresistor.
to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
33
Feature Definition
• 5-bit DAC
– Set output voltage with 5-bit digital input signal
• PowerGood
– Diagnostic feedback signal
• Soft start
– Feature to limit in-rush current and overheating
• Short-circuit protection
– Device is protected in conditions of short-circuit
• Temperature shut-down
– Shut down above max temperature and automatically restarts
when temperature is low enough
• Under Voltage Lock-Out (UVLO)
– Shuts down the IC when input voltage is below limit
– Protect IC and circuit
• Check datasheet for actual features
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
34
IRU3013 PWM Switching Controller for VRM 8.5
5-bit DAC
•
•
•
•
•
Single chip solution for 4 regulated
output:
– VCORE, 1.2V AGTL+, 1.8V,
uncommitted LDO
5-bit DAC for 1.050 to 1.825Vout
Power Good function
Driver Capability (70ns for 3000pF load)
220kHz
•
•
•
•
Loss-less short circuit protection
Fixed frequency operation and 100%
duty cycle with changing load
Minimum external components
required
No external compensation required
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
35
Matched Chipset for VRM 8.5
Chipset
Converter
Switching
Control FET
Ouput Current Controller IC
Sync FET
FET
Rating
Package
1
13-15A
IRU3013
IRF7811W
IRF7822
SO-8
Industry best
2
13-15A
IRU3013
IRLR3715
IRLR3704
D-Pak
High performance
3
8-10A
IRU3013
IRF7459
IRF7456
SO-8
High performance
• High volume application: Intel’s new Ultra Low
Voltage Pentium® III processor for blade servers
• Up to 2% higher efficiency at the industry-low 1.1
volts required by Intel’s new processors
compared to the nearest competitive solution.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
36
IRU3037 8-Pin PWM Synch Controller
• Synchronous Switching
Regulator Controller in
SO8 pin package.
• Operation from 4V to 25V;
Vin-max = 30V.
• Fixed Frequency Internal
200kHz Oscillator
(IRU3037) or 400kHz
(IRU3037A)
VOUT =1.8V
• 0.5A peak output MOSFET
gate drive capability
• Simple and low cost
5V
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
37
Matched Chipset for 5V and 12V Regulators
• Using IRU3037 IC
• Easy selection
• Optimized for cost
effectiveness at competitive
efficiency
• All single MOSFETs are 20V
SO-8.
• Use optimized Control and
Sync FET for best
efficiency within tight
budget
• Use Dual MOSFET to save
space
• FREE Sample Pak Available
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
38
Part Number:
IRU3037(A)
LTC1530CS8
ISL6520
SC1102
SC1104A/B
Manufacturer
International Rectifier
Linear Tech
Intersil
Semtech
Semtech
Package Style:
SOIC-8 and TSSOP-8
SOP-8
SOIC-8
SOIC-14
SOIC-8
Reliability Level:
Comm
Comm
Industrial
Industrial
Industrial
0.8 (IRU3037A)
1.25
0.8
1.265
1
0.35
1.5
1.5
0.5
1
Abs Max Vin (V):
30
14
5
14
15
Frequency (kHz):
200 or 400
300
300
200
300/600
Modulation Type:
PWM
PWM
PWM
PWM
PWM
VOLTAGE-MODE
VOLTAGE-MODE
VOLTAGE-MODE
VOLTAGE-MODE
VOLTAGE-MODE
# Outputs:
1
1
1
1
1
Soft Start:
Y
Y
Y
Y
Y
Dead-time Control:
N
Y
N
N
N
Overcurrent Shutdown:
N
Y
Y
Y
Y
Undervoltage Shutdown:
Y
Y
Y
Y
Y
Thermal Shutdown:
N
Y
Y
Y
Y
Overvoltage Shutdown:
N
Y
Y
Y
Y
Current limit
N
Y
Y
Y
Y
Vref
Vref Tolerance (%):
Mode:
Differentiating features for the IRU3037(A)
1. Current limit circuitry is not employed à no current sense required à lower component count à lowest cost
solution.
2. Available in low cost, space saving SOIC-8 and TSSOP-8 packages
3. Higher Maximum V C and VCC (30V) makes the IRU3037 suitable for a wider range of input voltage
4. Low Vref allows enables sub 1V OUT
5. Available in two fixed frequencies 200kHz (IRU3037 and 400kHz (IRU3037A)
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
39
IRU3038 Sync Buck Controller with Tracking
Voltage
• Synchronous PWM
Controller
• Uncommitted Error
Amplifier for Voltage
Tracking
• Programmable
Switching Frequency
from 200 to 400KHz
• Single 5V or 12V Supply
Operation
• Available in 14 Pin SOIC
and TSSOP Package
VTT= ½ * VDDQ + 3%
• Application:
• DDR Termination Voltage
• Vtt>2A
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
40
Tracking Voltage
• VTT tracks VDDQ within 3% to improve data rate and
to minimize errors
VDDQ changes from
2.5V to 2.87V
VDDQ
VTT
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
41
1
DDR Memory Using
IRU3037 and IRU3038
5V
2
8
IRU3037
7
3
6
4
5
12V
IRF7313
•
•
IRU3037 for VDDQ
IRU3038 for VTT
•
Simple
•
Low cost
•
Scalable to higher current
VREF
1
8
2
7
3
6
4
5
1
14
2
13
3
4
5V
NC
5V
VDDQ
2.5V @ 3A
NC
12
IRU3038
11
5
10
6
9
7
8
Rt
12V
IRF7313
1
8
2
7
3
6
4
5
5V
VTT
1.25V @ 3A
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
42
Part Number
IRU3038
L6910
SC1110
Manufacturer
IRU3038
STMicro
Semtech
# of pins
14
16
14
Power supply range
4 - 30 volts
4 - 15 volts
4-14 volts
Max Operating Temp
70 C
86 C
70 C
oscillator frequency
200 - 400 KHz
50 - 1000 KHz
250
reference voltage
1.25 volts
0.9 volts
1.25
output drive
0.5 amps
1.3 amps
0.5 amps
Uncommitted E/A
Y
Y
Y
OVP
N
Y
Y
UVLO
Y
Y
Y
Current Limit
N
Y
Y
Soft Start
Y
Y
Y
Power Good Output
N
Y
Y
Pricing ($)
0.89/10K
0.95/10K
1.75/2.5K
Additional competitors include:
TL5002
8-Pin PWM controller from TI. This product however requires an external driver chip which increases the complexity and
the cost of the solution.
MAX1809
The MAX1809 is an integrated product combining the PWM controller, FETs and the error amplifier. It is suitable for
lower currents (up to 3A) and therefore has more limited applications since the design is not scalable. Input voltages are
from 3.3-5.5V.
FAN5236
The FAN5236 from Fairchild Semiconductor is avalable in a QSOP28 packag. It provides a single chip solution for both
VDDQ and Vtt. Though featured in PCIM, September 2001, there is no datasheet available yet on the web.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
43
IRU3033 Non-Sync PWM Switcher & Linear
Controller IC
• Simple Hysteretic Switching Controller and LDO Controller in an 8
lead SOIC Package
• Fastest transient response of any controller method (0 - 100% Duty
Cycle in 100 ns)
• No Compensation needed
• On board MOSFET driver
• 1% internal voltage reference
• Internal Under Voltage Lockout protects MOSFET during start-up
+5V
IRU3033
3.3V
Linear
Control
Switcher
Control
VOUT2
VOUT1
N
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
44
Switching Controller Competition
• Semtech
– Very Strong at Intel Hillsboro, Acer, Microstar
– SC1182/1185, SC2425,SC1146
• Linear Tech
– Strong market share and great brand recognition
• National Semi
• Intersil(Harris)
– Strong at Asus, Gigabyte, Compaq(Mitac)
– HIP6021,HIP6018,HIP6019, HIP6301
• Fairchild(Raytheon),
– Raytheon with good presence at Gigabyte with FAN5091,
• ON Semi(Cherry)
– recent penetration at Asus
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
45
Compelling Reasons to Buy From IR
• All power semiconductor parts from 1 source
– Complementary MOSFETs and other power
semiconductors
• Very cost competitive for simple applications
• Roadmap for advanced power management ICs
and integration with matched IC and MOSFETs.
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
46
Upcoming Product: IRU3046
•
•
•
•
•
•
•
•
Dual Sync Controller with LDO Controller in 24-Pin SOIC or TSSOP
Dual Sync Controller offers out of phase operation
Can be configured as 2 independent or 2-Phase PWM controller
Programmable current sharing in 2-phase configuration to combine power
from 5V and 12V bus to reach total power
Programmable frequency up to 400kHz
Power Good Output
Synchronizable with external clock to minimize EMC
Applications: Current up to 20A, DDR VDDQ and VTT with a single IC
+12V
3.3V
VOUT2
Linear
Control
Switcher1
Control
IRU3046
+5V
VOUT1
Switcher1
Control
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
47
IRU3046
• Samples: April 02
• Demo board: April 02
• Pricing:
P/N
10K Pricing
IRU3046CWTR
$1.17
IRU3046CFTR
$1.17
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
48
Part Number
Manufacturer
LDO Controller
IRU3046
IRU3047
International Rectifier International Rectifier
SC1175
CS5422
Semtech Corp
ON Semiconductor
Y
Y
N
N
2-phase or 2independent
2-phase or 2independent
2-phase or 2independent
2-independent
200-400
200
300
150-600
UVLO
Y
Y
N
Y
Power Good
Y
Y
Y
N
Vref (V)
1.25
1.25
1.25
1
Vref (%)
2
2
1
2
Abs Max V CC (V)
30
30
15
16
Abs Max V CL (V)
30
30
26
25
Modulation Type
PWM, Voltage Mode
PWM, Voltage Mode
PWM, Voltage Mode
PWM, Voltage Mode
N
N
Y
N
20-Pin SOIC
16 Lead SO Narrow
or 24Lead Fused SOWide
Configuration
Frequency (kHz)
Current Limit
Package Style
24-Pin TSSOP or
SOIC
20-Pin SOIC
• Don’t compete with multiphase controller with VID
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
49
Sales Tools
• IRU3037 Sample Paks
• Demo board available
– Contact local FAE
• Cross reference available on training CD-ROM and intranet
• DC-DC Power Management Databook CD-ROM
– Available in Mar 02
• Power Design DC-DC Solutions
• DC-DC Selector Guide
• Web page http://www.irf.com/product-info/pmic/
• Disti registration program
– A number of products are on the registration program
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
50
Contacts
Volume Pricing SQPD
Technical
FAE
Support /Demo
board
Samples
Sample
Warehouse
[email protected]
www.irf.com
[email protected]
BUY IR PRODUCTS
US Sales
Champion
Nick Cataldo +1(203)355-1228 [email protected]
Others Sales
Questions
Amir Asvadi
+1(949)453-1008 [email protected]
x206
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
51
Ordering Samples Through www.irf.com
•
•
•
•
•
Go to www.irf.com
Click on “BUY IR PRODUCTS” and sign in
Click on “SHOPPING CARTS” (top of page)
Click on “CREATE NEW SAMPLE REQUEST”
Option to change your default address to another ship-to
address.
• Delivery 24 to 48hr in US, 2 to 3 days overseas
Standard Pack
Max Unit
1
2-9
10-12
13-24
>=25
30
20
2
6
26
100
30
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
52
Action Items
• Review customer that buy 30V MOSFETs for DCDC and investigate opportunity for PWM
switching controller and LDOs
• Identify designers of systems listed on slide 5 and
6 and introduce product line to them using
selector guides
• Get feature requirements from potential
customers using questions on slide 17
• Provide samples or demo board
• CLOSE THE BUSINESS!
PROPRIETARY INFORMATION - These documents and the information contained therein are proprietary and are not to be reproduced, used or
disclosed to others for manufacture or any other purpose except as specifically authorized in writing by INTERNATIONAL RECTIFIER.
53