Texas Instruments TPS65282RGER

Description
The TPS65282 is a dual power distribution switch with an integrated 4-A synchronous buck regulator. The power distribution switch features integrated back-to-back power MOSFETs with 100-mΩ on-resistance, adjustable current limit (75 mA to 2.7 A), latch-off overcurrent protection, reverse input-output voltage protection, built-in soft-start, and 4-kV HBM and 200-V MM ESD protection at power switch output pins.
The buck DC/DC converter has a wide input voltage range (4.5 V to 18 V), maximum continuous 4-A output current, feedback reference voltage of 0.8 V ±1%, adjustable switching frequency (300 kHz to 1.4 MHz), pulse skipping mode at light load efficiency, adjustable soft-start and tracking with built-in 1.2-ms internal soft-start time, cycle-by-cycle current limit, output over-voltage protection, power good indicator, and over-temperature protection.

Features
Operating Input Voltage Range: 2.5 V to 6.5 V
Integrated Back-to-Back Power MOSFETs With 100-mΩ On-Resistance
Adjustable Current Limit: 75 mA to 2.7 A (typical)
±6% Current-Limit Accuracy at 1.7 A (typical)
Latch-Off Over Current Protection Versions
Reverse Input-Output Voltage Protection
Built-In Soft-Start
4-kV HBM and 200-V MM ESD Protection at Power Switch Output Pins
Wide Input Voltage Range: 4.5 V to 18 V
Maximum Continuous 4-A Output Current
Feedback Reference Voltage: 0.8 V ±1%
Adjustable Switching Frequency: 300 kHz to 1.4 MHz
Pulse Skipping Mode at Light Load Efficiency
Adjustable Soft-Start and Tracking With Built-In 1.2-ms Internal Soft-Start Time
Cycle-by-Cycle Current Limit
Output Over-Voltage Protection
Power Good Indicator
Over Temperature Protection
24-Lead QFN (RGE) 4-mm x 4-mm Package

Applications
USB Ports and Hubs
Digital TV
Set-Top Boxes
VOIP Phones
Tablet PC