DESCRIPTION

The LTP™8800-1A is a 150A 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 LTP8800-1A 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 LTP8800-1A preserves high efficiency at high conversion

ratios by utilizing a resonant switching architecture

that eliminates high voltage switching losses.

The LTP8800-1A is available in a 22mm × 24mm × 6.7mm

surface-mounted open frame package.

FEATURES

- High Efficiency at High Frequency

- Up to 87.0 Efficiency at 1MHz, 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

- Optimized for 45V to 65VIN to 0.8VOUT

- ±0.5 Maximum DC Output Error with Differential

Remote Voltage Sense

- ±3 Current Readback Accuracy

- Parallel and Current Share Multiple μModule® ICs

- 22mm × 24mm × 6.7mm Surface Mount Package

APPLICATIONS

- High Current Distributed Power Systems

- Servers, Network, and Storage Equipment

- Intelligent Energy Efficient Power Regulation