LTP8803-1A

RECOMMENDED FOR NEW DESIGNS

160A DC/DC Power μModule Regulator with PMBus Interface

Analog Devices LTP8803-1A Product Info

10 February 2026 6

Features

High Efficiency at High Frequency
- Up to 91.8% Efficiency at 600kHz, 54V_IN to 1.2V_OUT
PMBus-Compliant I²C Serial Interface
- Monitor Voltage, Current, Temperature, and Faults
- Internal EEPROM Fault Log Record
- Digitally Programmable Control Loop
- Program Voltage, Current Limits, Soft-Start/Soft-Stop, Frequency, Synchronization and Phasing, Power-Good, Warnings and Faults

Wide Input Voltage Range: 45V to 65V
Output Voltage Range: 0.5V to 1.5V
Optimized for 45V to 65V_IN to 1.2V_OUT
±0.5% Maximum DC Output Error with Differential Remote Voltage Sense
±3% Current Readback Accuracy
Parallel and Current Share Multiple μModule ICs
Pin Compatible with LTP8800-1A and LTP8800-4A (Optimized for 0.8V_OUT)
22mm × 24mm × 22mm Surface-Mounted Package

Part details & applications

The LTP8803-1A is a 160A step-down μModule^® regulator that provides microprocessor core voltage from 54V power distribution architecture. It features remote configurability and telemetry monitoring of power management parameters over PMBus—an open standard I²C-based digital interface protocol.

The LTP8803-1A is comprised of a programmable digital control system with precision mixed-signal circuitry, EEPROM, power MOSFETs, planar transformer, inductors, and supporting components. Its high level of integration minimizes component count and design time and maximizes flexibility and power density.

The LTP8803-1A preserves high efficiency at high conversion ratios by utilizing a resonant switching architecture that eliminates high voltage switching losses.

The LTP8803-1A is available in a 22mm × 24mm × 22mm surface-mounted open frame package.

Applications

High Current Distributed Power Systems
Servers, Network, and Storage Equipment
Intelligent Energy Efficient Power Regulation

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