LT3504IUFD#TRPBF

$10.07

Description：IC REG BUCK ADJ 1A QUAD 28QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:16bc194af7ae Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 1A QUAD 28QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：4
Voltage - Input (Min)：3.2V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：40V
Current - Output：1A
Frequency - Switching：250kHz ~ 2.1MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：28-WFQFN Exposed Pad
Supplier Device Package：28-QFN (4x5)

Download product information

LT3504IUFD#TRPBF

Overview

The LT3504IUFD#TRPBF is a quad synchronous step-down switching regulator manufactured by Analog Devices Inc. It integrates four independent 1A buck converters within a single 28-lead QFN package. The device supports an input voltage range from 3.2V to 40V with adjustable output voltages. Key electrical parameters include a 2.2MHz switching frequency, 10nA quiescent current in shutdown mode, and operation across a temperature range of -40°C to +125°C.

Feature Summary

Integrates four independent 1A synchronous buck regulators for multi-rail power distribution
Supports 100% duty cycle operation to minimize dropout voltage at low output levels
Features ultra-low shutdown quiescent current for extended battery life in portable applications

Applications

Portable medical equipment requiring multiple isolated power rails
Industrial control systems with distributed power architectures
Battery-powered instrumentation needing efficient multi-voltage regulation

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the IUFD designation corresponds to the industrial temperature grade (-40°C to +125°C) and the 28-lead QFN package type. Ensure compatibility with your PCB footprint design for the exposed pad thermal connection.

Selection Notes

Select this component when designing systems requiring four separate regulated outputs from a single high-voltage source. The integrated topology reduces external component count compared to discrete solutions. Consider the 2.2MHz frequency for smaller passive components while managing EMI constraints.

Part Context

This part belongs to the LT3504 family of quad synchronous buck regulators. It shares architectural similarities with other multi-channel power management ICs but distinguishes itself through its specific 40V input capability and 1A per channel rating. The series targets applications demanding compact footprints and high efficiency.