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Adjustable Voltage Output Multifunction 2A High Speed LDO Regulator
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XC6230 Series
Based on a CMOS process, the XC6230 series are high-speed LDO regulators with a maximum output current of 2A.
A Pch driver Tr with a low ON resistance of 0.17Ω is incorporated in the IC, and stable output can be obtained even
when the dropout voltage is small, making this product ideal for a battery voltage or the end stage of a DC/DC converter.
Rush current protection, reverse current protection, and thermal shutdown protection circuits are incorporated as
protective functions, and the IC is housed in the USP-6C package to enable space-saving mounting as a protective
function IC. Also, an adjustable output voltage function enables any voltage to be set within the range 1.2V to 5.0V, and
an adjustable current limiting function enables any current to be set within the range 0.3A to 2.5A.
USP-6C
(1.8x2.0x0.6mm)
SALES
Internal Pch driver Tr with a low ON resistance
1
Output Voltage vs. Input Voltage
Dropout Voltage vs. Output Current
XC6230
XC6230
VOUT_SET=3.3V,Ta=25℃
CIN=2.2μF(ceramic), CL=4.7μF(ceramic)
VOUT_SET=3.3V,Ta=25℃
CIN=2.2μF(ceramic), CL=4.7μF(ceramic)
400
VIN
IOUT=500mA
IOUT=1000mA
IOUT=2000mA
3.8
3.6
3.4
3.2
3.0
2.8
2.6
At IOUT=1000mA,
Dropout=170mV
2.4
2.2
2.0
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
Dropout Voltage : Vdif(mV)
Output Voltage : VOUT(V)
4.0
VOUT_SET=3.3V
350
300
250
200
150
100
50
0
500
4.0
Input Voltage : VIN(V)
VIN
INPUT
R21
VOFB
CIN
ILIM
VSS
CL
VSS
RILIM
3.0
2.0
1.0
0.0
CL
ILIM
R22
RILIM
XC6230(VOUT_SET=1.2V)
VOUT_SET=1.2V,Ta=25℃,
VIN=2.2V,CIN=2.2μF(ceramic),CL=4.7μF(ceramic)
1.6
Output Voltage : VOUT(V)
4.0
R21
CE
R22
VOUT_SET=1.2V
VOUT_SET=1.8V
VOUT_SET=2.5V
VOUT_SET=3.3V
VOUT_SET=4.0V
VOUT_SET=5.0V
5.0
2000
VOUT
CIN
VIN
Ta=25℃
CIN=2.2μF(ceramic), CL=4.7μF(ceramic)
6.0
1750
VOFB
XC6230
Output Voltage : VOUT(V)
VIN
1500
The current limit can be set within the range of 0.3A to
2.5A by changing the value of the external resistor (RILIM).
VOUT
CE
1250
Adjustable current limit
The output voltage can be set within the range of 1.2V to
5.0V by changing the value of th external resistors (R21, R22).
VIN
1000
Output Current : IOUT(mA)
Adjustable output voltage
INPUT
750
ILIM_SET=0Ω
ILIM_SET=13.5kΩ
ILIM_SET=36kΩ
1.4
ILIM_SET=100kΩ
ILIM_SET=200kΩ
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.0
2.0
3.0
4.0
Input Voltage : VIN(V)
5.0
6.0
0.0
0
500
1000
1500
2000
Output Current : IOUT(mA)
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2500
3000
October 2015
●Values shown in this sheet can be changed without any prior notice.
New Product Leaflet
Adjustable Voltage Output Multifunction 2A High Speed LDO Regulator　XC6230 Series
SALES
Enhanced Protection Features
2
Reverse Current Protection
When the output voltage is higher than the input voltage, the reverse current protection function prevents current that
flows in reverse from the output pin (VOUT) to the input pin (VIN).
Thermal Shutdown
A thermal shutdown (TSD) circuit is incorporated to protect the IC from overheating. When the junction temperature
reaches the detection temperature (150℃), this function forcibly shuts the driver transistor OFF.
Inrush Current Protection
When the IC starts, this function limits the current that suddenly flows from the input pin (VIN) to the output pin (VOUT)
to charge the output stabilization capacitor (CL). When CL=4.7μF, the rush current is limited to 500mA or less, making
it possible to design a safer circuit.
VOUT_SET=1.2V,VIN=2.2V,IOUT=0mA,Ta=25℃
CIN=2.2μF(ceramic),CL=4.7μF(ceramic)
3.0
CE Input Voltage
2.5
0.8
2.0
0.8
Output Voltage
0.7
1.0
0.6
0.5
0.5
0.0
0.4
-0.5
0.3
-1.0
Current(A)
1.5
Voltage(V)
Voltage(V)
1.0
0.2
Rush Current
-1.5
0.1
-2.0
0.0
-2.5
-0.1
-3.0
-0.2
Time : 10 (μsec/div)
CE
VOUT(ILIM=0.3A)
VOUT(ILIM=2.5A)
IRUSH(ILIM=2.5A)
IRUSH(ILIM=0.3A)
SALES
High-speed response
Load Transient Response
VOUT_SET=3.3V, IOUT=0.1⇔500mA, tr=5μs, Ta=25℃
VIN=3.8V,CIN=2.2μF(ceramic), CL=4.7μF(ceramic)
Voltage(V)
3.5
Output Voltage
1.8
3.3
1.6
3.1
1.4
XC6230
XC6220
2.9
1.2
2.7
1
2.5
0.8
Output Currrent
2.3
2.1
1.9
500mA
0.6
0.4
0.2
0.1mA
1.7
VOUT_SET=3.3V,VIN=4.3V+0.5Vp-pAC,Ta=25℃
IOUT=100mA,CIN=2.2μF(ceramic),CL=4.7μF(ceramic)
2
0
Current(A)
3.7
Power Supply Rejection Ratio
Power Supply Rejection Ratio :PSRR(dB)
3
80
70
60
XC6230
50
XC6220
XC6227
40
30
20
10
0
0.1
Time : 10 (μsec/div)
1
10
100
1000
Frequency : f(kHz)
Features
Maximum output current
2.0A
ON resistance
0.17Ω(VOUT_SET=3.3V)
Output voltage settinng range
1.2V～5.0V
1.2V±1.0％
Supply current
45μA
Reverse Current Protection, Output Voltage adjustable
Output Voltage Accuracy
Functions
Current limit setting range
1.7V～6.0V
0.3A～2.5A
Inrush Current Protection,Current Limit adjustable
Thermal shutdown, Short Protection
Operating Ambient Temperature
-40℃～+105℃
CL High Speed Discharge
Input voltage range
www.torexsemi.com
October 2015
●Values shown in this sheet can be changed without any prior notice.