LT1074HVIT#30PBF

Overview

The LT1074HVIT#30PBF is a high-voltage step-up switching regulator from Analog Devices, designed for efficient DC-DC conversion. It operates with an input voltage range up to 40V and can generate output voltages significantly higher than the input. The device integrates a 2A switch capable of handling high peak currents, making it suitable for applications requiring substantial power transfer. Key electrical parameters include a switching frequency adjustable via external components and precise internal reference voltage regulation. The component utilizes a 28-pin TSSOP package, ensuring compact integration into dense circuit boards while maintaining thermal performance under load.

Feature Summary

• Integrated high-current power switch for robust step-up conversion
• Fixed internal oscillator for stable switching frequency operation
• Precision voltage reference ensures accurate output regulation
• Built-in protection features including current limiting and thermal shutdown

Applications

• Battery-powered systems requiring voltage boosting
• Industrial control circuits needing isolated or boosted supplies
• Telecommunications equipment with high-voltage rail requirements

Procurement Notes

Verify the specific suffix #30PBF against the manufacturer's latest datasheet to confirm pinout compatibility and temperature grade. Ensure that the ordering information matches the exact part number required for your design, as minor variations in suffixes may indicate different packaging or environmental ratings. Cross-reference with authorized distributors to confirm authenticity and traceability.

Selection Notes

Select this component when a high-voltage boost converter is needed with integrated power switching capabilities. Consider the maximum input voltage and required output current to ensure the device operates within its safe operating area. Evaluate the thermal management requirements due to the integrated switch, and verify that the external inductor and capacitor selections align with the specified switching frequency for optimal efficiency.

Part Context

This part belongs to the LT1074 family of switching regulators, which are known for their reliability in high-voltage applications. The HV variant specifically addresses needs where standard regulators cannot handle the input voltage levels. It serves as a critical component in designs requiring efficient power conversion from lower voltage sources to higher voltage rails, commonly found in industrial and automotive electronics.

Replacement Considerations

Check for direct replacements such as other LT1074 variants with compatible pinouts and electrical characteristics. Ensure any substitute supports the same input voltage range and output current capabilities. Verify that the replacement maintains similar protection features and thermal performance to avoid redesigning the surrounding circuitry.