LT1172MJ8

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

SKU:6de6d3534ba3 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 8CERDIP
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：-55°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：8-CDIP (0.300", 7.62mm)
Supplier Device Package：8-CERDIP
Grade：-
Qualification：-

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LT1172MJ8

Overview

The LT1172MJ8 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 features a fixed switching frequency of 100 kHz and a typical quiescent current of 6 mA. Designed for military specifications, it supports a wide operating temperature range from -55 °C to +125 °C. The component is housed in an 8-lead CERDIP package and integrates a high-current switch with complete oscillator, control, and protection circuitry on the die.

Feature Summary

Supports multiple standard switching topologies including buck, boost, flyback, forward, inverting, and Cuk configurations
Integrates a high-efficiency power switch with comprehensive internal oscillator and protection circuits
Rated for extended military-grade temperature operation

Applications

Military DC-to-DC conversion systems
High-reliability aerospace power supplies
Industrial equipment requiring wide input voltage ranges
Defense communication power architectures

Procurement Notes

Verify the specific suffix MJ8 indicates military grade qualification and ceramic DIP packaging when sourcing. Confirm RoHS compliance status as military parts may differ from commercial standards. Ensure the supplier provides traceability documentation required for defense applications. Check availability through authorized Analog Devices distributors or certified military surplus channels.

Selection Notes

Select this component when designing for environments requiring operation between -55 °C and +125 °C. Choose the MJ8 variant over commercial counterparts if ceramic packaging reliability is necessary. Consider the 1.25 A output limit and 100 kHz frequency when sizing external passive components. Verify that the 60 V maximum input voltage aligns with the system's supply rails.

Part Context

The LT1172 series comprises monolithic high-power switching regulators capable of driving loads up to 5 A depending on the specific package and thermal design. The MJ8 designation identifies the military-grade version within the family, distinguished by its extended temperature range and ruggedized construction compared to commercial variants like the CN8 or IN8.