LT1172HVCT#31PBF

$11.81

Description：IC REG BCK BST ADJ 1.25A TO220-5
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:2da202786f88 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BCK BST ADJ 1.25A TO220-5
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)：60V
Voltage - Output (Min/Fixed)：1.244V
Voltage - Output (Max)：75V (Switch)
Current - Output：1.25A (Switch)
Frequency - Switching：100kHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 100°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-5 Formed Leads
Supplier Device Package：TO-220-5 Flow 31
Grade：-
Qualification：-

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LT1172HVCT#31PBF

Overview

The LT1172HVCT#31PBF is a monolithic high-power switching regulator from Analog Devices, designed for versatile DC-DC conversion. It integrates a high-current, high-efficiency power switch with complete oscillator, control, and protection circuitry on a single die. The device supports multiple standard switching configurations including buck, boost, flyback, forward, inverting, and Cuk topologies. Key electrical parameters include an input voltage range of 3V to 60V, a fixed output voltage of 5V, and an output current capability of 1.25A, delivering up to 100W of output power. It operates at a switching frequency of 100kHz and features a DDPAK-5 surface-mount package.

Feature Summary

Integrates a high-current, high-efficiency power switch with all necessary oscillator, control, and protection circuitry on a single monolithic die.

Applications

5V/1.25A Forward Converter
5V/1.25A Flyback Converter
5V/1.25A Buck Converter

Procurement Notes

Verify the specific suffix #31PBF against official Analog Devices documentation to confirm the exact tape-and-reel packaging configuration and lead finish specifications. Ensure compatibility with the intended thermal management solution for the DDPAK-5 package, as thermal performance is critical for maintaining efficiency at the specified 1.25A output current. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when a flexible, high-efficiency switching regulator is required for input voltages up to 60V. It is suitable for designs needing support for various topologies such as forward or flyback converters without requiring external discrete power switches. Consider the 100kHz switching frequency for balancing component size and efficiency, and verify that the 1.25A output current meets the load requirements of the target application.

Part Context

The LT1172 series comprises high-efficiency switching regulators available in various current ratings (5A, 2.5A, and 1.25A). The LT1172HV variant specifically denotes a version capable of handling higher input voltages up to 60V. The LT1172HVCT#31PBF represents the 1.25A current rating version in a CT package (DDPAK-5) with reel packaging, distinguishing it from tube-packaged variants like the LT1172HVCT.