LTC4413

RECOMMENDED FOR NEW DESIGNS

Dual 2.6A, 2.5V to 5.5V, Ideal Diodes in 3mm × 3mm DFN

Data Sheet Product Selection Table
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Overview

  • 2-Channel Ideal Diode ORing or Load Sharing
  • Low Loss Replacement for ORing Diodes
  • Low Forward On-Resistance (100mΩ Max at 3.6V)
  • Low Reverse Leakage Current (1μA Max)
  • Small Regulated Forward Voltage (28mV Typ)
  • 2.5V to 5.5V Operating Range
  • 2.6A Maximum Forward Current
  • Internal Current Limit and Thermal Protection
  • Slow Turn-On/Off to Protect Against Inductive Source Impedance-Induced Voltage Spiking
  • Ultralow Quiescent Current Consumption, Low Power Alternative to the LTC4413-1
  • Status Output to Indicate if Selected Channel is Conducting
  • Programmable Channel On/Off
  • Low Profile (0.75mm) 10-Lead 3mm × 3mm DFN Package

The LTC4413 contains two monolithic ideal diodes, each capable of supplying up to 2.6A from input voltages between 2.5V and 5.5V. Each ideal diode uses a 100mΩ P-channel MOSFET that independently connects INA to OUTA and INB to OUTB. During normal forward operation the voltage drop across each of these diodes is regulated to as low as 28mV. Quiescent current is less than 40μA for diode currents up to 1A. If either of the output voltages exceeds its respective input voltages, that MOSFET is turned off and less than 1μA of reverse current will flow from OUT to IN. Maximum forward current in each MOSFET is limited to a constant 2.6A and internal thermal limiting circuits protect the part during fault conditions.

Two active-high control pins independently turn off the two ideal diodes contained within the LTC4413, controlling the operation mode as described by Table 1. When the selected channel is reverse biased, or the LTC4413 is put into low power standby, a status signal indicates this condition with a low voltage.

A 9μA open-drain STAT pin is used to indicate conduction status. When terminated to a positive supply through a 470k resistor, the STAT pin can be used to indicate that the selected diode is conducting with a high voltage. This signal can also be used to drive an auxiliary P-channel MOSFET power switch to control a third alternate power source when the LTC4413 is not conducting forward current.

The LTC4413 is housed in a 10-lead DFN package.

Features
LTC4413 Lower Iq
LTC4413-1 Lower Vfwd, Faster Response, Higher Iq
LTC4413-2 Lower Vfwd, Faster Response, Higher Iq, 13V (max) OVP

Applications

  • Battery and Wall Adapter Diode ORing in Handheld Products
  • Backup Battery Diode ORing
  • Power Switching
  • USB Peripherals
  • Uninterruptable Supplies
LTC4413
Dual 2.6A, 2.5V to 5.5V, Ideal Diodes in 3mm × 3mm DFN
LTC4413 vs 1N5817 Schottky Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 3

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Protection Switches & Controllers 1
LTC4361-1
LTC4361-2
Overvoltage/Overcurrent Protection Controller
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC4413
  • LTC4413-1
  • LTC4413-2
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC839A

LTC4413EDD | Dual Ideal Diode-Triple Power Path Controller, VIN = 2.5 to 5.5V, VOUT = 2.5 to 5.5V @ 2.6A MAX

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Product Details

DC839A: Demo Board for the LTC4413 Dual 2.6A, 2.5V to 5.5V, Ideal Diodes in 3mm × 3mm DFN.
DC839A
LTC4413EDD | Dual Ideal Diode-Triple Power Path Controller, VIN = 2.5 to 5.5V, VOUT = 2.5 to 5.5V @ 2.6A MAX
DC839A - Schematic

Latest Discussions

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LTC4413 What happens if a voltage is applied to INB when ENBB is High?
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