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LM656X0-CALC

LM65680/-Q1, LM65660/-Q1 and LM65640/-Q1 buck converter quickstart design tool

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Latest version
Version: A1
Release date: Feb 11, 2026
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LM656x0-Q1_quickstart_calculator_revA1.xlsm  — 2394 K

LM65680, LM65660 and LM65640 quickstart calculator

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Products
DC/DC converters
LM65680 — 65V, 8A low-IQ synchronous step-down converter LM65680-Q1 — Automotive 65V, 8A synchronous buck converter optimized for low-EMI
Hardware development
Evaluation board
LM65680-Q1EVM — LM65680-Q1 evaluation module

Release Information

Welcome to the quickstart design tool for the LM65680, LM65660 and LM65640 converters. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator using this 65V, 8A/6A/4A converter family. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.

What's new

  • Rev A1 initial release