LT1172CS8#TRPBF

$9.00

Description：IC REG BUCK BOOST ADJ 1.25A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:12de9ddf1575 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK BOOST ADJ 1.25A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration：Positive or Negative
Topology：Buck, Boost, Cuk, Flyback, Forward Converter
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.244V
Voltage - Output (Max)：65V (Switch)
Current - Output：1.25A (Switch)
Frequency - Switching：100kHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 100°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SO
Grade：-
Qualification：-

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LT1172CS8#TRPBF

Overview

The LT1172CS8#TRPBF is a monolithic high-power switching regulator manufactured by Analog Devices Inc. It operates at a fixed switching frequency of 100 kHz and supports an input voltage range from 3 V to 60 V. The device integrates a high-current, high-efficiency power switch capable of delivering up to 5 A, with internal current limiting set for 2.5 A and 1.25 A options. It provides adjustable output voltage and is housed in an 8-lead SOIC package. This part number specifically denotes the tape-and-reel packaging variant.

Feature Summary

Integrates a high-current, high-efficiency power switch on the die
Supports all standard switching configurations including buck, boost, flyback, forward, inverting, and Cuk topologies
Includes complete oscillator, control, and protection circuitry

Applications

High power density point-of-load DC-to-DC conversion
Industrial power supply systems requiring wide input ranges
Battery-powered equipment utilizing various switching topologies

Procurement Notes

Verify that the specific suffix #TRPBF corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets RoHS standards as indicated by the PBF designation. Ensure compatibility with the intended operating temperature range and validate that the integrated switch current limits align with the system's thermal and electrical design constraints before finalizing procurement orders.

Selection Notes

Select this component when a versatile, high-power switching regulator is needed across multiple standard topologies. The integrated switch eliminates external component selection for the main power stage. Consider the 100 kHz fixed frequency for EMI management and filter size optimization. Verify that the 60 V maximum input voltage suits the source application and that the SOIC package fits the available PCB real estate.

Part Context

The LT1172 belongs to a family of monolithic high-power switching regulators designed for flexibility. Unlike fixed-output linear regulators or single-topology converters, this series allows designers to implement buck, boost, flyback, forward, inverting, and Cuk circuits using a single IC. The CS8 variant specifies the commercial temperature grade and SOIC package format within the broader product line.