LT1170HVCT#30PBF

Overview

The LT1170HVCT#30PBF is a monolithic high-power switching regulator from Analog Devices, designed for versatile DC-DC conversion applications. It supports multiple standard topologies including buck, boost, flyback, forward, inverting, and Cuk configurations. The device integrates a high-current, high-efficiency internal switch along with complete oscillator, control, and protection circuitry on the die. It operates with an input voltage range of 3 V to 60 V and delivers up to 5 A output current, achieving a maximum output power of 100 W. The unit features a fixed switching frequency of 100 kHz and utilizes a TO-220-5 package suitable for through-hole mounting.

Feature Summary

• Integrates a high-current, high-efficiency power switch with all necessary oscillator, control, and protection circuits on a single die
• Supports comprehensive switching configurations including buck, boost, flyback, forward, inverting, and Cuk topologies
• Capable of driving high-voltage FETs for off-line applications with up to 5 A drive capability

Applications

• 5V/5A Boost Converter designs
• -12V/5A Positive-to-Negative Buck-Boost Converters
• 5V/5A Flyback Converter implementations
• Driving High Voltage FETs for Off-Line Applications

Procurement Notes

Verify the specific suffix #30PBF against official Analog Devices documentation to confirm tape-and-reel packaging requirements versus tube packaging. Confirm RoHS compliance status and lead-free specifications directly from the manufacturer's datasheet or authorized distributor declarations prior to procurement. Ensure the component meets all environmental and regulatory standards required for the target application.

Selection Notes

Select this component when a single IC must support multiple converter topologies such as buck, boost, or flyback within a design. It is suitable for applications requiring an input voltage range up to 60 V and output currents up to 5 A. Consider the TO-220-5 package for thermal management needs in through-hole assemblies. Verify that the 100 kHz switching frequency aligns with electromagnetic interference constraints and passive component sizing requirements.

Part Context

This part belongs to the LT1170 series of high-power switching regulators manufactured by Analog Devices. The series is characterized by its ability to operate in various standard switching configurations using a single monolithic chip. The HV variant typically denotes extended voltage handling capabilities compared to lower-voltage counterparts in the same family.

Replacement Considerations

LT1170HVCT#PBF is listed as a direct substitute.