Datasheet Texas Instruments TPS65287RHA — 数据表

TPS65287
www.ti.com SLVSBX2 – MAY 2013 4.5-V to 18-V Input, High Current, Synchronous Step Down Three DC-DC Converter with
Integrated FET, USB Switch and Push Button Control
Check for Samples: TPS65287 FEATURES 1 Wide Input Supply Voltage Range:
4.5 V -18 V
0.8-V, 1% Accuracy Reference
Continuous Loading:
3 A (Buck1), 2 A (Buck2 and 3)
Maximum Current:
3.5 A (Buck 1), 2.5 A (Buck2 and 3)
300-kHz – 2.2-MHz Switching Frequency Set
By External Resistor
External Enable Pins With Built-In Current
Source for Easy Sequencing
External Soft Start Pins
Adjustable Cycle-by-Cycle Current Limit Set
by External Resistor
Current-Mode Control With Simple
Compensation Circuit Pulse Skipping Mode to Achieve High Light
Load Efficiency, Allowing for an Output Ripple
Better than 2%
Support Pre-Biased Outputs
Power Good Supervisor and Reset Generator …