48Vin Digital POL with 3 Outputs Reference Design
PMP4486
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Key Document

Description

The PMP4486 is a GaN-based reference design solution for telecom and computing applications. The GaN module LMG5200 enables a high efficiency single stage conversion with an input range from 36 to 60V down to 29V, 12V and 1.0V. This design shows the benefits of a GaN based design with high integration and low switching losses. A low cost ER18 planar PCB transformer is embedded on the board. The design was achieved in a compact form factor (56mmX86mmX16mm).

Features
  • Extra high efficiency up to 98.4%
  • High operating frequency for small size
  • Ease of design using LMG5200 GaN FET module
  • Full digital control with UCD3138A enable flexible design
  • S.R buck topology and half-bridge current-doubler

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP4486.1
(Output Voltage 1)
PMP4486.2
(Output Voltage 2)
PMP4486.3
(Output Voltage 3)
Vin (Min) (V)363636
Vin (Max) (V)606060
Vout (Nom) (V)12912
Iout (Max) (A)401010
Output Power (W)40290120
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDC
TopologyHalf Bridge- Hard SwitchedBuck- SynchronousBuck- Synchronous

TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA286  -14 to 80V, bi-directional current sense amplifier  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LM5113  1.2-A/5-A, 100-V half bridge gate driver for GaNFET  Gate drivers  Not Available Not Available
LM5161  Wide Input 4.5-V to 100-V, 1-A Synchronous Buck / Fly-Buck Converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
LMG5200  80V GaN Half Bridge Power Stage  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV704  150-mA, 24-V, ultra-low-IQ, low-dropout voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital power ICs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA286 Download Download
Download Download
LM5113 Download Download
Download -
LM5161 Download Download
LMG5200 Download -
TLV704 Download Download
UCD3138A Download
Download
Download

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Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1716 15 Dec 2016
Design files (6)
Title Type Size (KB) Date
ZIP 544 15 Dec 2016
ZIP 30 15 Dec 2016
PDF 4771 15 Dec 2016
PDF 336 15 Dec 2016
PDF 146 15 Dec 2016
PDF 687 15 Dec 2016
Related Tools & Software

Reference Designs (2)

Name Part Number Tool Type
48Vin, 300W 1/8brick Digital Module with GaN FET Reference Design  PMP4435  Reference design 
LMG5200 48V to 1V/40A Single Stage Converter Reference Design  PMP4497  Reference design 

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