LT1072HVIT#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LT1072HVIT#PBF is a high-voltage switching regulator IC manufactured by Analog Devices Inc., designed for versatile DC-DC conversion topologies including boost, buck, Cuk, flyback, and forward converters. It features an adjustable output voltage starting at 1.25V with a maximum switch voltage rating of 75V. The device supports a single positive or negative output delivering up to 1.25A of switch current. Operating within an input voltage range of 3V to 60V, it functions at a fixed switching frequency of 40kHz. Packaged in a TO-220-5 through-hole configuration, it ensures reliable performance across a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple converter topologies including boost, buck, Cuk, flyback, and forward configurations.
• Capable of generating positive or negative adjustable output voltages.
• Features a high-voltage switch rated for 75V operation.

Voltage Regulators - DC DC Switching Regulators Applications

• High-voltage step-up (boost) power supply designs
• Isolated power conversion using flyback topology
• Industrial control system power regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout compatibility and thermal characteristics. Ensure the procurement channel provides valid RoHS compliance declarations. Confirm that the TO-220-5 package matches the intended PCB footprint and thermal management requirements for the application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when applications require high input or output voltages exceeding standard regulator limits. The 75V switch rating allows for significant voltage transformation ratios. Consider the 40kHz switching frequency for trade-offs between component size and electromagnetic interference. Verify that the 1.25A switch current limit aligns with the peak inductor currents required by the chosen topology.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LT1072 family of high-efficiency switching regulators. While the standard LT1072 variants typically support up to 40V or 60V switch ratings, the HV designation indicates enhanced internal breakdown capabilities. The IT#PBF suffix denotes a specific industrial temperature grade and lead-free packaging format compatible with modern assembly processes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LT1072IN8#PBF offers similar functionality but with a lower 60V switch rating. LT1072IT#PBF is another variant with a 40V switch rating. Substitution requires careful evaluation of the maximum voltage stress in the circuit to ensure the replacement device does not exceed its absolute maximum ratings.