LT1509CSW#PBF

Overview

The LT1509CSW#PBF is a power factor correction controller manufactured by Analog Devices Inc. It integrates PWM and current mode control within a single package, designed for high-efficiency power conversion applications. The device operates with an input voltage range from 11.5 V to 25 V and delivers a maximum output current of 1.5 A. It features a nominal output voltage of 7.5 V and utilizes pulse width modulation technology for precise regulation. The component is housed in a 20-pin SOP package, suitable for surface mount assembly, and complies with RoHS standards.

Feature Summary

• Integrates combined PFC PWM and current mode control functions
• Features a post regulator for stable output performance
• Utilizes pulse width modulation technology for efficient switching

Applications

• Power factor correction circuits
• Switching power supplies
• Industrial power management systems

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm lead-free status and packaging type. Ensure the ordering code matches the exact pinout and thermal requirements for your design. Cross-reference the datasheet revision history to confirm compliance with current environmental regulations such as RoHS. Confirm availability through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a combined PFC and regulation solution is required in a compact form factor. Consider the 20-pin SOP package for board space constraints. Evaluate the 11.5 V to 25 V input range against your system's supply capabilities. Verify that the 1.5 A output current meets the load requirements of the downstream circuitry before finalizing the design.

Part Context

The LT1509 belongs to Analog Devices' portfolio of power management integrated circuits. It is part of a series designed for efficient power conversion, offering integrated control solutions. The SW package variant provides a surface-mount option compatible with standard PCB manufacturing processes, facilitating automated assembly and reducing manual soldering requirements in production environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.