GENERAL DESCRIPTION

The ADP1053, based on a voltage mode PWM architecture, is a flexible, application dedicated digital controller designed for isolated and nonisolated dc-to-dc power supply applications. The ADP1053 enables highly efficient power supply design and facilitates the introduction of intelligent power management techniques to improve energy efficiency at a system level.

FEATURES

Configurable 8-PWM engine with up to 3 channels

2 independent digitally controlled channel outputs

Voltage mode PWM control with 625 ps resolution

Remote voltage sensing on both channels

Programmable compensation filters

Voltage feedforward option

Flexible start-up sequencing and tracking

Switching frequency: 50 kHz to 625 kHz

Frequency synchronization

Independent channel protections: OVP and OCP

2 independent OTP circuits

Programmable fault protection sequence

Volt-second balance and dual-phase current balance for interleaved configurations

On-board EEPROM

PMBus-compliant

Graphical user interface (GUI) for ease of programming

Available in a 40-lead, 6 mm × 6 mm LFCSP

APPLICATIONS

AC-to-DC power supplies

Isolated dc-to-dc power supplies

Intermediate rail power supplies

Nonisolated dc-to-dc power converter