Download Gen 3 SupIRBuck ® IR389x Family of Products

Gen 3 SupIRBuck® IR389x
Family of Products
The third generation of integrated, feature-rich
SupIRBuck® synchronous buck voltage regulators are
designed to address the new requirements of
emerging energy efficient netcomm, server and
storage applications. These new SupIRBuck single
output devices feature a newly patented modulator
scheme that generates the industry’s smallest, jitter
free pulse widths.
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DATA SHEETS
HI-RES
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SuPIRBuck®
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Design Tool
Features
Advantages
• 4A, 6A, 9A, 12A, 16A options
• 4.5V-21V single input voltage
• Operating Junction temperature -40C to
125  C
• Margin pin
• Tracking
• 0.5% Reference voltage accuracy
• Patented jitter-free modulator
• 2 level Smart LDO boosts efficiency
• Input voltage feed-forward
• Thermally compensated current limit
• PLL based frequency synchronization
• Start/Stop ramp
• Start-up into pre-biased output
• Input voltage aware enable
• Programmable OVP/Power Good
• Patented modulator virtually eliminates jitter enabling higher closed
loop bandwidth for lower output capacitance.
• Updating to a smart LDO further increases the SupIRBuck’s
industry leading efficiency within the same compact footprint.
January 2012