LT1076HVCT-5#PBF

Overview

The LT1076HVCT-5#PBF is a high-voltage monolithic bipolar switching regulator manufactured by Analog Devices Inc. It operates in a buck topology with a fixed 5V output and supports up to 1.6A output current. The device accepts an input voltage range of 8V to 60V, with a minimum operating voltage of 7.3V. Key electrical parameters include a 100kHz switching frequency, 8.5mA static current, and single output configuration. It features shutdown functionality and is housed in a TO-220-5 through-hole package.

Feature Summary

• Integrates power switch, oscillator, control circuitry, and current limit components on a single chip for simplified design.
• Capable of driving tapped inductors in buck mode due to switch output swing specification below ground.
• Supports versatile topologies including positive-to-negative conversion, negative boost, and flyback configurations.

Applications

• Tapped-inductor buck converter circuits
• Positive-to-negative voltage conversion systems
• Negative boost converter applications
• Flyback converter designs

Procurement Notes

Verify the specific suffix HVCT against the manufacturer datasheet to confirm pinout and thermal characteristics. Ensure the TO-220-5 through-hole package aligns with PCB layout requirements. Confirm RoHS compliance status via official documentation before integration. Cross-reference the part number with distributor listings to validate availability and authenticity.

Selection Notes

Select this component when high input voltage tolerance up to 60V is required alongside a fixed 5V output. Consider the 1.6A current capability and 100kHz frequency for standard isolation or non-isolated DC-DC needs. Evaluate the TO-220-5 package for thermal management suitability in through-hole assemblies compared to surface-mount alternatives.

Part Context

This part belongs to the LT1076 series of high-voltage switching regulators. It is designed as a complete solution requiring minimal external components. The series includes variants supporting different topologies and output voltages, all sharing the core integrated control and power switch architecture.

Replacement Considerations

LT1076HVIT-5#PBF offers similar functionality with a wider operating temperature range (-40°C to 85°C) and potentially higher current ratings depending on the specific variant configuration. Verify pin compatibility and thermal performance before substitution.