LT1172CT#06PBF

Overview

The LT1172CT#06PBF 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 standard switching topologies, including buck, boost, flyback, forward, inverting, and Cuk configurations. It integrates a high-current, high-efficiency internal switch along with complete oscillator, control, and protection circuitry on the die. The component functions within a temperature range of 0°C to +100°C and utilizes a SO-8 package.

Feature Summary

• Integrates a high-current, high-efficiency power switch with all necessary oscillator, control, and protection circuitry on a single die.
• Supports versatile operation across all standard DC-to-DC switching configurations, including buck, boost, flyback, forward, inverting, and Cuk topologies.
• Features wide input voltage capability ranging from 3 V to 60 V for broad application compatibility.

Applications

• High efficiency 5V buck converter circuits
• 5V/1.25A forward converter designs
• 1.25A high efficiency constant current charger systems

Procurement Notes

Verify the specific suffix #06 against official Analog Devices documentation to confirm exact marking or tape-and-reel specifications. Ensure the selected variant matches the required thermal performance and packaging constraints for the target PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a single IC solution is required for multiple topology implementations without external power switches. The integrated protection features simplify design complexity compared to discrete solutions. Consider the 1.25 A output limit and 60 V input ceiling to ensure suitability for the specific power requirements. Evaluate thermal management needs based on the SO-8 package and expected load conditions.

Part Context

This part belongs to the LT1172 series of high-power switching regulators. The series is characterized by its ability to function in various standard converter modes using a single chip architecture. The LT1172 family is designed to replace discrete transistor-based designs, offering improved reliability and reduced board space through integrated control and power stages.

Replacement Considerations

LT1172CSW#PBF

FAQ

What switching topologies are supported by the LT1172CT#06PBF?

The device supports buck, boost, flyback, forward, inverting, and Cuk configurations.

Does the LT1172CT#06PBF include external power components?

No, it includes a high-current, high-efficiency switch and all oscillator, control, and protection circuitry on the die.