LT8631HFE#TRPBF

$5.35

Description：IC REG BUCK ADJ 1A 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:1cbbfeea9900 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 1A 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：100V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：60V
Current - Output：1A
Frequency - Switching：100kHz ~ 1MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad
Supplier Device Package：20-TSSOP-EP
Grade：-
Qualification：-

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LT8631HFE#TRPBF

Overview

The LT8631HFE#TRPBF is a synchronous step-down DC/DC converter from Analog Devices, featuring an input voltage range of 3V to 100V and a maximum output current of 1A. It utilizes internal synchronous switches for high efficiency and supports adjustable output voltages between 0.8V and 60V. The device operates with a fixed switching frequency of 400kHz or 1MHz, depending on the specific variant configuration, and includes a shutdown pin for power management. It is housed in a 20-lead TSSOP package with an exposed pad for thermal dissipation.

Feature Summary

Integrates internal synchronous switches to eliminate external diode requirements and improve conversion efficiency.
Supports wide input voltage ranges suitable for diverse power sources including automotive and industrial systems.
Features current mode PWM control architecture for stable regulation under varying load conditions.

Applications

Automotive electronics power regulation
Industrial system power distribution
Telecom supplies operating at 36V to 72V

Procurement Notes

Verify the exact switching frequency suffix (400kHz vs 1MHz) as the base part number covers multiple variants. Confirm the package type matches the design footprint, specifically the 20-TSSOP-EP configuration. Ensure compatibility with the intended input voltage range and thermal requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component when a high-voltage input capability up to 100V is required alongside a compact synchronous buck solution. It is appropriate for designs needing a single regulator to handle wide input variations without complex pre-regulation stages. Consider the thermal performance of the TSSOP-EP package for heat dissipation needs in space-constrained layouts.

Part Context

This part belongs to the LT8631 family of micropower synchronous step-down regulators designed for high-voltage applications. The HFE suffix typically denotes a specific switching frequency variant within the series, distinguishing it from other frequency options available in the same product line while maintaining identical core electrical characteristics and packaging.