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LMG708B0-CALC

LMG708B0 GaN buck converter quickstart design tool

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LMG708B0-CALC

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Overview

Welcome to the quickstart design tool for the LMG708B0 and LMG708B0-Q1 GaN synchronous buck converter family, which is intended for high-efficiency and high-density applications. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator in a single-phase or multiphase configuration. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.

Features
  • Configure the converter for single-phase, two-phase or multiphase applications
  • Determine the buck inductance and input and output capacitances
  • Select components for overcurrent protection, switching frequency and output voltage setpoint
  • Optimize compensation component values for loop stability using crossover frequency as a performance metric
  • Inspect regulator efficiency, solution size, and component power dissipations with ambient temperature as a parameter
  • Review auto-generated schematic and BOM list
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LMG708B0-CALC — LMG708B0 GaN buck converter quickstart calculator

Supported products & hardware

Supported products & hardware

Products
DC/DC converters
LMG708B0 — 5V to 80V, 20A synchronous step-down converter with integrated GaN FETs for ultra-high efficiency
Hardware development
Reference design
PMP23595 — 48VIN, 960W four-phase buck converter with integrated GaN reference design
Evaluation board
LMG708B0-EVM12V — LMG708B0 12V, 20A, GaN buck converter evaluation module LMG708B0-EVM2PH — LMG708B0 12V, 40A, 400kHz, two-phase GaN buck converter evaluation module
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LMG708B0-CALC — LMG708B0 GaN buck converter quickstart calculator

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Latest version
Version: A1
Release date: Apr 22, 2026
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LMG708B0_quickstart_calculator_revA.xlsm  — 3240 K

LMG708B0 GaN buck converter quickstart calculator

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Products
DC/DC converters
LMG708B0 — 5V to 80V, 20A synchronous step-down converter with integrated GaN FETs for ultra-high efficiency
Hardware development
Reference design
PMP23595 — 48VIN, 960W four-phase buck converter with integrated GaN reference design
Evaluation board
LMG708B0-EVM12V — LMG708B0 12V, 20A, GaN buck converter evaluation module LMG708B0-EVM2PH — LMG708B0 12V, 40A, 400kHz, two-phase GaN buck converter evaluation module

Release Information

Welcome to the quickstart design tool for the LMG708B0 80V GaN synchronous buck converter family. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator using this converter family. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.

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