LT3501IFE#PBF

$10.74

Description：IC REG BUCK ADJ 3A DL 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:33d197c2664d Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 3A DL 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：2
Voltage - Input (Min)：3.1V
Voltage - Input (Max)：25V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：23.75V
Current - Output：3A
Frequency - Switching：250kHz ~ 1.5MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：20-TSSOP-EP

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LT3501IFE#PBF

Overview

The LT3501IFE#PBF is a dual-channel synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.1V to 25V and provides two adjustable positive outputs, each capable of delivering up to 3A of current. The device features a programmable switching frequency ranging from 250kHz to 1.5MHz. It utilizes a 20-lead TSSOP package with an exposed thermal pad for efficient heat dissipation. The IC supports a minimum output voltage of 0.8V and includes integrated shutdown functionality.

Feature Summary

Dual independent buck converter channels providing separate adjustable output rails
Integrated high-side and low-side power switches for efficient synchronous rectification
Programmable switching frequency allows optimization for size or efficiency
Thermal regulation circuitry protects against overheating under fault conditions

Applications

Point-of-load regulation in industrial control systems
Power supply stages for embedded computing platforms
Battery-powered equipment requiring dual voltage rails
Telecommunications infrastructure power distribution

Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm the manufacturer part number matches exactly to ensure correct pinout and electrical characteristics. Check RoHS compliance status as required by project specifications. Validate that the 20-TSSOP-EP footprint matches the design layout before finalizing procurement.

Selection Notes

Select this component when dual isolated or non-isolated buck outputs are required from a single input source. The wide input voltage range suits applications powered by 12V or 24V buses. Ensure the thermal design accommodates the power dissipation at maximum load currents. Compare switching frequency requirements against external component sizes to optimize board space.

Part Context

This device belongs to the LT3501 family of dual synchronous buck regulators. It shares functional similarities with other multi-output converters but offers specific current ratings and package options. The #PBF designation distinguishes it from tape-and-reel variants like #TRPBF, indicating bulk tube packaging for manual or semi-automatic assembly processes.