TPS51220ARTVT Description

The TPS51220ARTVT is a dual synchronous buck regulator controller with two LDOs. It is optimized for a 5-V/3.3-V system controller, enabling designers to cost-effectively complete a 2-cell to 4-cell notebook system power supply.

TPS51220ARTVT Features

• Input Voltage Range: 4.5 V to 32 V

• Output Voltage Range: 1 V to 12 V

• Selectable Light Load Operation (Continuous 1 Auto Skip 1 Out-Of-AudioTM Skip)

• Programmable Droop Compensation

• Voltage Servo Adjustable Soft Start

• 200-kHz to 1-MHz Fixed-Frequency PWM

• Selectable Current/ D -CAPTM Mode Architecture

• 180° Phase Shift Between Channels

• Resistor or Inductor DCR Current Sensing

• Adaptive Zero Crossing Circuit

• Power good Output for Each Channel

• OCL J/OVP/UVP/UVLO Protections (OVP Disable Option)

• Thermal Shutdown (Non-Latch)

• Output Discharge Function (Disable Option)

• Integrated Boot Strap MOSFET Switch

• QFN-32 (RTV/RSN) Package

TPS51220ARTVT Applications

• Notebook Computer System and /O Bus

• Point of Load in LCD TV, MFP