LT1076HVCR#TRPBF

Overview

The LT1076HVCR#TRPBF is a high-voltage monolithic bipolar switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 20V to 35V and provides a fixed 5V output at up to 2A switch current. The device utilizes a buck topology with a 100kHz switching frequency. It integrates the power switch, oscillator, control circuitry, and current limit components within a single chip. The component is housed in a TO-263-8 (D2PAK) surface-mount package and supports operation across a temperature range of -40°C to 85°C.

Feature Summary

• Integrates power switch, oscillator, control circuitry, and current limit components on a single chip
• Capable of driving tapped inductors for buck mode applications with high output currents
• Switch output specified to swing significantly below ground potential

Applications

• Tapped-inductor buck converter circuits
• Positive-to-negative converter configurations
• Negative boost converter designs
• Flyback converter implementations

Procurement Notes

Verify the specific suffix CR against official Analog Devices documentation to confirm the fixed 5V output variant and D2PAK packaging. Ensure compatibility with the required input voltage range of 20V to 35V. Confirm RoHS compliance status through the manufacturer's material declaration. Cross-reference the part number with authorized distributors to validate authenticity and supply chain integrity before procurement.

Selection Notes

Select this component when a fixed 5V output is required from a 20V to 35V input source. It is suitable for designs requiring integrated protection features without external current limiting components. Consider the thermal performance of the D2PAK package for heat dissipation requirements. Verify that the 100kHz switching frequency aligns with electromagnetic interference constraints and inductor size limitations in the target application.

Part Context

The LT1076 series represents a family of high-voltage switching regulators designed for versatile DC-DC conversion topologies. The HV variant specifically addresses higher input voltage requirements compared to standard versions. This series allows designers to implement buck, boost, flyback, and negative converter functions using minimal external components, reducing board space and design complexity.

Replacement Considerations

LT1076IQ#TRPBF: Similar functionality but differs in maximum input voltage rating and package pinout configuration.