LTC4442
LTC4442-1

PRODUCTION

High Speed Synchronous N-Channel MOSFET Drivers

Part Models: 8
1ku List Price: Starting From $1.54

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Overview

Wide V_CC Range: 6V to 9.5V
38V Maximum Input Supply Voltage
Adaptive Shoot-Through Protection
2.4A Peak Pull-Up Current
5A Peak Pull-Down Current
8ns TG Fall Time Driving 3000pF Load
12ns TG Rise Time Driving 3000pF Load
Separate Supply to Match PWM Controller
Drives Dual N-Channel MOSFETs
Undervoltage Lockout
Thermally Enhanced MSOP Package

The LTC4442 is a high frequency gate driver designed to drive two N-channel MOSFETs in a synchronous buck DC/DC converter topology. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitance.

The LTC4442 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4442 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 42V above ground.

The LTC4442 contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOSFETs when an undervoltage condition is present. The LTC4442 and LTC4442-1 have different undervoltage lockout thresholds to accommodate a wide variety of applications. An adaptive shoot-through protection feature is also built-in to prevent power loss resulting from MOSFET cross-conduction current.

The LTC4442/LTC4442-1 are available in the thermally enhanced 8-lead MSOP package.

Applications

Distributed Power Architectures
High Density Power Modules

Part Models: 8
1ku List Price: Starting From $1.54

Documentation

Data Sheet 1

LTC4442/LTC4442-1: High Speed Synchronous N-Channel MOSFET Drivers Data Sheet 04/28/2010

Reliability Data 1

R419 Reliability Data 03/22/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4442EMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442EMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442EMS8E-1#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442EMS8E-1#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442IMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442IMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442IMS8E-1#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4442IMS8E-1#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 9, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LTC4442EMS8E#PBF	PRODUCTION
LTC4442EMS8E#TRPBF	PRODUCTION
LTC4442IMS8E#PBF	PRODUCTION
LTC4442IMS8E#TRPBF	PRODUCTION
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC4442EMS8E#PBF	PRODUCTION
LTC4442EMS8E#TRPBF	PRODUCTION
LTC4442EMS8E-1#PBF	PRODUCTION
LTC4442EMS8E-1#TRPBF	PRODUCTION
LTC4442IMS8E#PBF	PRODUCTION
LTC4442IMS8E#TRPBF	PRODUCTION
LTC4442IMS8E-1#PBF	PRODUCTION
LTC4442IMS8E-1#TRPBF	PRODUCTION
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC4442EMS8E#PBF	PRODUCTION
LTC4442EMS8E#TRPBF	PRODUCTION
LTC4442EMS8E-1#PBF	PRODUCTION
LTC4442EMS8E-1#TRPBF	PRODUCTION
LTC4442IMS8E#PBF	PRODUCTION
LTC4442IMS8E#TRPBF	PRODUCTION
LTC4442IMS8E-1#PBF	PRODUCTION
LTC4442IMS8E-1#TRPBF	PRODUCTION
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LTC4442EMS8E-1#PBF	PRODUCTION
LTC4442EMS8E-1#TRPBF	PRODUCTION
LTC4442IMS8E-1#PBF	PRODUCTION
LTC4442IMS8E-1#TRPBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4442
LTC4442-1

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.

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