ADP1053

Data Sheet 3-Channel Digital Power Supply Controller ADP1053 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 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. The ADP1053 provides control, monitoring, and protection of up to three independent channel outputs. The eight flexible PWM outputs can be configured as three independent channels: two regulated channels with feedback contro...