Synchronous Step Down Three DC-DC Converter
TPS65287
www.ti.com
SLVSBX2 – MAY 2013
4.5-V to 18-V Input, High Current, Synchronous Step Down Three DC-DC Converter...
Description
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
Up to 2.1-A USB Power With Over Current Setting by External Resistor
Individual Thermal Protection for USB Switch
Push Button (10-kV ESD Rated Pin for PB_IN) Control for Intelligent System PowerOn/Power-Off Operation
Small, Thermally Efficient 40-Pin 6-mm x 6-mm RHA (QFN) package
-40°C to 125°C Junction Temperature Range
DESCRIPTION/ORDERING INFORMATION
TPS65287 is a power management IC with three step-down buck converters. Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. The converters are designed to simplify its application while giving the de...
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