FEATURES

Operating Input Voltage 10 V to 40 V

Programmable Fixed-Frequency Up to

100 kHz to 1 MHz Voltage Mode Controller

Internal Gate Drive Outputs for High-Side

and Synchronous N-Channel MOSFETs

16-Pin PowerPAD Package (θJC = 2°C/W)

Thermal Shutdown

Externally Synchronizable

Programmable Short-Circuit Protection

Programmable Closed-Loop Soft-Start

APPLICATIONS

DDR Tracking Regulators

Power Modules

Networking Equipment

Industrial Servers

DESCRIPTION

The TPS40052 is part of a family of high-voltage,

wide input, synchronous, step-down converters.

The TPS40052 offers design flexibility with a

variety of user programmable functions, including

soft-start, operating frequency, high-side current

limit, and loop compensation.

The TPS40052 is also synchronizable to an

external supply. It incorporates MOSFET gate

drivers for external N-channel high-side and

synchronous rectifier (SR) MOSFETs. Gate drive

logic incorporates anti-cross conduction circuitry

to prevent simultaneous high-side and

synchronous rectifier conduction.

The externally programmable short circuit

protection provides pulse-by-pulse current limit, as

well as hiccup mode operation utilizing an internal

fault counter for longer duration overloads.