描述 Description

The LTP?8800-4A is a 200A step-down μModule? regulatorthat provides microprocessor core voltage from 54Vpower distribution architecture. LTP8800-4A featuresremote configurability and telemetry monitoring of powermanagement parameters over PMBus—an open standardI2C-based digital interface protocol. The LTP8800-4Ais comprised of a programmable digital control systemwith precision mixed-signal circuitry, EEPROM, powerMOSFETs, planar transformer, inductors, and supportingcomponents. LTP8800-4A high level of integration minimizescomponent count and design time and maximizesflexibility and power density. The LTP8800-4A preserveshigh efficiency at high conversion ratios by utilizing a resonantswitching architecture that eliminates high voltageswitching losses. The LTP8800-4A is available in a 22mm× 24mm × 22mm surface mounted open frame package.

特性 Features

High Efficiency at High Frequency
Up to 90.5% Efficiency at 550kHz, 54VIN to 0.8VOUT
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 1.1V
±0.5% Maximum DC Output Error with Differential Remote Voltage Sense
±3% Current Readback Accuracy
Parallel and Current Share Multiple μModule ICs
22mm × 24mm × 22mm Surface-Mount Package

應(yīng)用 Application

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