1FEATURES

• 1.5-V to 19-V Conversion Voltage Range

• 4.5-V to 14-V Supply Voltage Range

• Voltage Mode Control

• Skip Mode at Light Load for Efficiency

Optimization

• High Precision 0.5% Internal 0.8-V Reference

• Adjustable Output Voltage from 0.8 V to

0.7×V IN

• Internal Soft-Start

• Supports Pre-biased Startup

• Supports Soft-Stop

• Programmable Switching Frequency from

250 kHz to 1 MHz

• Overcurrent Protection

• Inductor DCR Sensing for Overcurrent

• RDS(on) Sensing for Zero Current Detection

• Overvoltage and Undervoltage Protection

• Open Drain Power Good Indication

• Internal Bootstrap Switch

• Integrated High-Current Drivers Powered by

VCCDR

• Small 3 mm x 3 mm, 16-Pin QFN Package

APPLICATIONS

• Server and Desktop Computer Subsystem

Power Supplies

• DDR Memory and Termination Supply

• Distributed Power Supply

• General DC/DC Converter

DESCRIPTION

TPS53211 is a single phase PWM controller with

integrated high-current drivers. It is used for 1.5 V up

to 19 V conversion voltage.

TPS53211 features a skip mode solution that

optimizes the efficiency at light load condition without

compromising the output voltage ripple. The device

provides pre-biased startup, soft-stop, integrated

bootstrap switch, power good function, EN/Input

UVLO protection. It supports conversion voltages up

to 19 V, and output voltages adjustable from 0.8 V to

0.7×VIN.

The TPS53211 is available in the 3 mm × 3 mm, 16-

pin, QFN package (Green RoHs compliant and Pb

free) and is specified from –40°C to 85°C.