LT1072IT#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LT1072IT#PBF is a monolithic high-power switching voltage regulator manufactured by Analog Devices Inc. It operates with input supply voltages ranging from 3 V to 40 V and delivers an adjustable output voltage up to 65 V (switch) or 75 V (HV variant). The device supports a maximum switch current of 1.25 A at a fixed switching frequency of 40 kHz. It features low quiescent current consumption of 6 mA and functions across an extended temperature range of -40°C to +125°C. Packaged in a TO-220-5 through-hole housing, it integrates the power switch, oscillator, and control circuitry.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple standard switching topologies including buck, boost, Cuk, flyback, forward, and inverting configurations.
• Integrates a high-current, high-efficiency power switch along with complete oscillator, control, and protection circuitry on a single die.
• Provides adjustable output voltage capability for positive or negative output applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Buck converter circuits
• Boost converter circuits
• Flyback converter designs
• Forward converter implementations
• Inverting and Cuk topology power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm electrical ratings and package type. Ensure the selected variant matches the required input voltage range and thermal performance for the target application environment. Confirm RoHS compliance status and packaging format requirements prior to ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a versatile, single-chip solution for various DC-DC conversion topologies is required. Consider the 1.25 A switch current limit and 40 kHz operating frequency for design constraints. Evaluate thermal management needs due to the TO-220-5 package and ensure the input voltage stays within the specified 3 V to 40 V range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LT1072 family of high-power switching regulators. It shares architectural similarities with other members like the LT1072CN8#PBF and LT1072HVIT#PBF, differing primarily in package style and maximum voltage ratings. The IT#PBF designation indicates an industrial temperature grade and lead-free TO-220-5 packaging.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LT1072HVIT#PBF offers higher voltage ratings. LT1072CN8#PBF provides a PDIP-8 package option. LT1170IT#PBF is a higher current alternative within the same family.