LTP8800-2

RECOMMENDED FOR NEW DESIGNS

54V, 135A DC/DC μModule Regulator with PMBus Interface

Data Sheet (Rev. A) Product Selection Table

Part Models: 1
1ku List Price: Starting From $114.50

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Overview

High Efficiency at High Frequency
- Up to 89% Efficiency at 700kHz, 54V_IN to 0.75V_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 1.0V
Optimized for 45V to 65V_IN to 0.75V_OUT
±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-Mounted Package

The LTP™8800-2 is a 135A step-down μModule^® (micromodule) regulator that provides microprocessor core voltage from a 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 LTP8800-2 comprises 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 LTP8800-2 preserves high efficiency at high conversion ratios by utilizing a quasi-resonant architecture that reduces high voltage switching losses.

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

Applications

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

Part Models: 1
1ku List Price: Starting From $114.50

Documentation

Data Sheet 1

LTP8800-2: 54V, 135A DC/DC μModule Regulator with PMBus Interface (Rev.A) 03/13/2024

User Guide 1

DC3190B-E User Guide: LTP8800-2 | 54V Input, High Current Dc-to-Dc Power μModule with PMBus Interface (Rev.Sp0) 03/13/2024

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTP8800-2IPV#PBF	PCA Package 22-Lead (22mm × 24mm × 6.70mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTP8800-1A
LTP8800-2
LTP8800-4A

LTpowerCAD

Design tools for the following parts are available in LTpowerCAD:

LTP8800-2
LTP8800-4A

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

Open Tool

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTP8800-2 | 54V Input, High Current Dc-to-Dc Power μModule with PMBus Interface

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Features and Benefits

DC3190B-E evaluation board
Transient circuit included for load transient evaluation
GUI with LTpowerPlay

Product Details

The DC3190B-E is a high current, high density, high efficiency open-frame μModule^® regulator with 45V to 65V input range. The DC3190B-E evaluation board has an LTP^®8800-2 μModule (micromodule) regulator which provides microprocessor 0.75V voltage from 54V power distribution architecture with digital power system management (PSM). The maximum output current for the evaluation board is 135A. See LTP8800-2 data sheet for more detailed information.

The DC3190B-E powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the dc-to-dc converter. To fully explore the extensive PSM features of the DC3190B-E, download LTpowerPlay^® graphical user interface (GUI) software to your PC and use Analog Devices I²C/SMBus/PMBus dongle DC1613A to connect to the evaluation board. The LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature, and fault status.

Resources

DC3190B-E User Guide: LTP8800-2 | 54V Input, High Current Dc-to-Dc Power μModule with PMBus Interface (Rev.Sp0)
3/13/2024

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