LT3973IDD-5#PBF

$8.46

Description：IC REG BUCK 5V 750MA 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:932492eaee91 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 5V 750MA 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4.2V
Voltage - Input (Max)：42V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：750mA
Frequency - Switching：195kHz ~ 2.15MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x3)

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LT3973IDD-5#PBF

Overview

The LT3973IDD-5#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It features a wide input voltage range from 4.2V to 42V and delivers a fixed 5V output at up to 750mA. The device operates with a typical quiescent current of 1.9µA and supports an adjustable switching frequency up to 2.15MHz. It utilizes a 10-WFDFN package with exposed pad for surface mount installation.

Feature Summary

Adjustable frequency operation supporting high-frequency switching for compact passive component sizing
Wide input voltage tolerance accommodating broad supply variations
Ultra-low quiescent current consumption for enhanced battery efficiency
Integrated thermal performance via exposed pad design

Applications

Industrial control systems requiring stable 5V rails
Battery-powered equipment needing low standby power
Embedded computing modules with variable input sources
Telecommunications infrastructure power distribution

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the IDD variant corresponds to the industrial temperature range specifications. Ensure the DFN-10 package footprint matches the target PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this part when a fixed 5V output is required from inputs exceeding 42V. Consider the 2.15MHz maximum frequency capability if minimizing inductor size is critical. Evaluate the 750mA continuous current limit against peak load demands to ensure adequate headroom for system stability.

Part Context

This component belongs to the LT3973 family of high-voltage step-down converters. It shares architectural similarities with other members like the LT3973IDD but differs in fixed output voltage configuration. The series is designed for applications demanding high efficiency and wide input ranges in small form factors.

Replacement Considerations

Direct substitutes include LT3973IDD-3.3#PBF for 3.3V outputs or LT3973EDD-5#PBF for extended temperature variants. Verify pin compatibility and thermal characteristics when cross-referencing with other buck regulators from different manufacturers.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.