LT8640IUDC-1#PBF - Analog Devices Inc.

Manufacturer Part Number

LT8640IUDC-1#PBF

Manufacturer

Analog Devices

Introduction

The LT8640IUDC-1#PBF is a high-efficiency, Silent Switcher® 1 step-down voltage regulator designed to minimize electromagnetic interference (EMI) while delivering a continuous 5A output current.

Product Features and Performance

Silent Switcher® 1 architecture for low EMI

High efficiency step-down (buck) regulator

Adjustable output voltage

Synchronous rectification for improved efficiency

4V to 42V wide input voltage range

97V to 42V adjustable output voltage range

5A output current capability

210kHz to 2MHz adjustable switching frequency

Supports safe operating temperatures ranging from -40°C to 125°C

Surface mount technology for compact PCB design

Compatible with 20-WFQFN package footprint

Product Advantages

Reduced EMI suitable for noise-sensitive applications

Wide input and output voltage ranges for versatile use

High output current suitable for various power requirements

Thermal regulation for improved performance and safety

High-frequency switching capability for compact passive components

High integration to save space and reduce external component count

Key Technical Parameters

Voltage - Input (Min): 3.4V

Voltage - Input (Max): 42V

Voltage - Output (Min/Fixed): 0.97V

Voltage - Output (Max): 42V

Current - Output: 5A

Frequency - Switching: 210kHz ~ 2MHz

Operating Temperature Range: -40°C ~ 125°C

Quality and Safety Features

Thermally enhanced 20-QFN package for improved cooling

In-built thermal regulation to prevent overheating

Certified by various industrial safety standards

Compatibility

Compatible with surface mount technology

Matches the 20-WFQFN, 18 Leads, Exposed Pad footprint

Application Areas

High-performance computing

Industrial power supplies

Automotive electronics

Networking and telecom equipment

Medical devices

Product Lifecycle

Status: Active

No reported discontinuation; ongoing support and availability

Replacements and upgrades might be available under the LT8640 series

Several Key Reasons to Choose This Product

Minimized EMI suitable for sensitive electronics

Flexible and efficient operation within a wide range of voltages

High current capability for demanding applications

Temperature resilience for diverse environments

Synchronous rectification for high efficiency and power savings

Compact design enabling integration into space-constrained applications

Reputable manufacturer with industry-standard compliance and support

Continued product support and availability ensuring long-term reliability