Overview
Description
The ISL81401EVAL1Z evaluation board features the ISL81401, a 40V high voltage synchronous buck-boost controller that offers external soft-start, independent enable functions and integrates UV/OV/OC/OT protections. A programmable switching frequency ranging from 100kHz to 600kHz helps to optimize inductor size while the strong gate driver delivers up to 20A for the buck-boost output.
Features
- Wide input range: 6V to 40V
- Bidirectional operation
- High light-load efficiency in pulse skipping DEM operation
- Programmable soft-start
- Optional DEM/PWM operation
- Optional CC/HICCUP OCP protection
- Supports prebias output with soft-start
- Power-good (PGOOD) indicator
- OVP, OTP and UVP protection
- Back biased from output to improve efficiency
Applications
Videos & Training
This video introduces the ISL81601 and ISL81401 high voltage buck-boost controllers from Renesas. These true bidirectional controllers feature peak and average current sensing, smooth mode transitions, and up to 99% efficiency. Ideal for DC/DC conversion and battery-powered applications, they offer robust protection and support 4.5V to 60V input.
Related Resources
Support
Support Communities
- ISL81401EVAL1Z size dimension
So, recently i found this ISL81401EVAL1Z DC/DC buck boost. But, i cant find any size dimension of this module. Does anyone know what size dimension this module is?
Sep 18, 2022 - ISL81401 evaluation board
I am working on a dynamo manager for a vintage or veteran car. https://blog.andrew-lohmann.me.uk/2025/09/vintage-and-veteran-car-dynamo-power.html Can the IC and EVB operate with 0.5V input and 0V output if I provide Vin ...
Nov 30, 2025
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