LT1172CN8#PBF

$7.60

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

SKU:07f7dd8e9a68 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK BST ADJ 1.25A 8PDIP
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：0°C ~ 100°C (TJ)
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
Grade：-
Qualification：-

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LT1172CN8#PBF

Overview

The LT1172CN8#PBF is a monolithic high-power switching regulator from Analog Devices, housed in an 8-pin PDIP package. It operates with an input voltage range of 3 V to 60 V and delivers an output current of 1.25 A at a fixed switching frequency of 100 kHz. The device supports adjustable output voltages across multiple topologies including buck, boost, flyback, forward, inverting, and Cuk configurations. It features a low operating supply current of 6 mA and functions within a temperature range of 0°C to +100°C.

Feature Summary

Integrates a high-current, high-efficiency power switch with complete oscillator, control, and protection circuitry on a single die.
Supports versatile DC-DC conversion topologies including buck, boost, flyback, forward, inverting, and Cuk configurations.
Designed for high efficiency operation with low quiescent current consumption.

Applications

High efficiency 5V buck converter circuits
Positive or negative flyback converter designs
Forward converter applications
Negative boost regulator implementations

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the PDIP-8 through-hole package matches your PCB footprint requirements. Check current availability status as distribution may vary by region. Ensure the 3 V to 60 V input range aligns with your system power rails before finalizing procurement.

Selection Notes

Select this component for designs requiring a wide input voltage range up to 60 V and support for multiple standard switching topologies. The integrated high-current switch simplifies design by reducing external component count. Consider the 100 kHz switching frequency for balancing size and efficiency. Verify thermal management needs for the PDIP-8 package under maximum load conditions.

Part Context

The LT1172 series represents a family of monolithic high-power switching regulators known for versatility. The CN8 variant specifically denotes the commercial temperature grade version packaged in an 8-pin DIP format. This part integrates the power stage and control logic, distinguishing it from discrete solutions that require separate controllers and MOSFETs.