LT1172IS8#PBF

$11.00

Description：IC REG BUCK BOOST ADJ 1.25A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:4b26f52fe715 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：Tube
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：-40°C ~ 100°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SO

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LT1172IS8#PBF

Overview

The LT1172IS8#PBF is a monolithic high-power switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 60 V and provides an adjustable output voltage with a maximum output current of 1.25 A. The device supports multiple topologies including buck, boost, flyback, forward, inverting, and Cuk configurations. It features a fixed switching frequency of 100 kHz and a typical operating supply current of 6 mA. The component is housed in an SOIC-8 surface-mount package and is rated for operation between 0°C and +100°C.

Feature Summary

Integrates a high-current, high-efficiency power switch with complete oscillator, control, and protection circuitry on a single die.
Capable of operation in all standard switching configurations, including buck, boost, flyback, forward, inverting, and Cuk topologies.
Designed for high efficiency performance within a wide input voltage range.

Applications

High efficiency 5V buck converter circuits
Positive forward converter designs
Negative boost regulator applications

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the IS8 variant meets industrial temperature requirements. Ensure the SOIC-8 package dimensions align with PCB footprint specifications. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component for designs requiring versatile topology support from a single IC. It is suitable for applications needing up to 1.25 A output current with a wide input voltage span. Consider the 100 kHz switching frequency for passive component sizing. Verify thermal management capabilities for the SOIC-8 package under maximum load conditions.

Part Context

This part belongs to the LT1172 series of high-power switching regulators. The series includes variants such as LT1172CS8, LT1172IN8, and LT1172CN8, which share similar functional architectures but may differ in temperature grades or packaging options. The LT1172 family is designed for flexible DC-to-DC conversion needs.