LMG5200 48V to 1V/40A Single Stage Converter Reference Design
PMP4497
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Description

The PMP4497 is a GaN-based reference design solution for the Vcore such as FPGA, ASIC applications. With high integration and low switching loss, the GaN module LMG5200 enables a high efficiency single stage from 48V to 1.0V solution to replace the traditional 2-stage solution. This design shows the GaN performance and the system advantages, compared with the 2-stages solution.  A low cost ER18 planar PCB transformer is embedded on the board. The design was achieved in a compact form factor (45mm*26mm*11mm). The size could be further reduced by optimizing frequency and components.

Features
  • LMG5200 GaN FET module
  • Single stage Half-Bridge Current-Doubler topology
  • Extra high Efficiency up to 89.9% with full load @48Vin
  • DCAP+ Controlling with the TPS53632G
  • Compact size: 45mm*26mm*11mm

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP4497.1
(Output Voltage 1)
Vin (Min) (V)60
Vin (Max) (V)36
Vout (Nom) (V)1
Iout (Max) (A)40
Output Power (W)40
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyHalf Bridge- Hard Switched

TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO7420FE  Low-Power Dual Channel Digital Isolators  Isolation  Sample & Buy Not Available
LMG5200  80V GaN Half Bridge Power Stage  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS53632G  Half-bridge, D-CAP+ controller for 48-V GaN DC/DC converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC27512  4A/8A Single Channel High-speed Low-side Gate Driver  Gate drivers  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO7420FE Download Download
LMG5200 Download -
TLV704 Download Download
TPS53632G Download
UCC27512 Download -

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