描述 Description

The LTP?8800-2 is a 135A step-down μModule? (micromodule)regulator that provides microprocessor corevoltage from a 54V power distribution architecture. Itfeatures remote configurability and telemetry monitoringof power management parameters over PMBus, an openstandard I2C-based digital interface protocol.

The LTP8800-2 comprises a programmable digital controlsystem with precision mixed-signal circuitry, EEPROM,power MOSFETs, planar transformer, inductors, and supportingcomponents. Its high level of integration minimizescomponent count and design time and maximizesflexibility and power density.

The LTP8800-2 preserves high efficiency at high conversionratios by utilizing a quasi-resonant architecture thatreduces high voltage switching losses.

The LTP8800-2 is available in a 22mm × 24mm × 6.7mmsurface-mounted open frame package.

Applications


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

特性 Features

High Efficiency at High Frequency
Up to 89% Efficiency at 700kHz, 54VIN to 0.75VOUT
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 1.0V
Optimized for 45V to 65VIN to 0.75VOUT
±0.5% Maximum DC Output Error with DifferentialRemote Voltage Sense
±3% Current Readback Accuracy
Parallel and Current Share Multiple μModule ICs
22mm × 24mm × 6.7mm Surface-Mounted Package