LTC4412 Ideal Diode Controller Design Note 1003

This document introduces the working principle and features of the LTC4412 ideal diode controller. The controller can realize automatic power switching and has the characteristics of low loss, low component count, small package, wide operating voltage range, low static current, auxiliary MOSFET power switch and control input pin.

Brand: Linear Technology
Category: Power Management
Document type: Application Note
Language: English
Pages: 2
File format: PDF
File size: 55 KB
Published: 05 June, 2012
Updated: 30 September, 2023
Model: LTC4412
MD5 checksum: C8E4EBE0D348FE75379F874A764ADB99
PDF: LTC4412 Ideal Diode Controller Design Note 1003 PDF

About this manual

This document describes the LTC4412 Ideal Diode Controller, which simplifies PowerPath management by replacing traditional diodes in power switching circuits. It provides a near-ideal diode function with a low forward voltage drop of only 20mV (typical), significantly reducing power losses and self-heating compared to conventional Schottky diodes.

What's inside

Introduction
Features
Applications
Automatic Power Switching
Load Sharing

Frequently asked questions

What is the typical voltage drop across the controlled external MOSFET?

The forward voltage drop across the controlled external MOSFET is typically only 20mV.

What are the operating supply voltage limits for this controller?

The device supports a wide supply operating range from 2.5V to 28V, with an absolute maximum of 36V.

How much current does the device draw from a 3.6V supply?

The LTC4412 has a low quiescent current of 11 µA when powered by a 3.6V supply.

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