LT1509ISW#TRPBF

Overview

The LT1509ISW#TRPBF is a Power Factor Correction (PFC) controller manufactured by Analog Devices Inc. It integrates PWM and current-mode control functions within a single device, featuring a post-regulator for output stability. The component operates with an input voltage range of 11.5 V to 25 V and provides a nominal output voltage of 7.5 V. It supports a maximum output current of 1.5 A and utilizes Pulse Width Modulation technology. The device is housed in a 20-pin SOP package, specifically the SW20 configuration, and is designed for applications requiring combined PFC and current mode control.

Feature Summary

• Integrates Power Factor Correction PWM and Current Mode control functions
• Includes a dedicated post-regulator for enhanced output stability
• Supports high peak output current capability

Applications

• Power factor correction circuits
• Combined PFC and current mode control systems
• Switching power supply designs

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SOP-20 footprint matches the design layout requirements. Cross-reference the datasheet for any recent manufacturing changes or material declarations.

Selection Notes

Select this component for designs requiring integrated PFC and current-mode control without external logic separation. Consider the 20-pin SOP package constraints for board space. Evaluate the 11.5 V to 25 V input range against the system's operating conditions. Verify thermal performance capabilities within the chosen enclosure environment.

Part Context

This part belongs to the LT1509 series of power management ICs from Analog Devices. It is distinct from other series members by its specific combination of PFC and current-mode control features. The ISW variant denotes the industrial temperature range and SOP-20 package type. It serves as a specialized solution for efficient power conversion architectures.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. No public substitute part numbers are confirmed in the provided data.