LT1339CSW#TRPBF

Overview

The LT1339CSW#TRPBF is a high-power synchronous current mode switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 9 V to 60 V and supports frequencies up to 150 kHz. The device is housed in a 20-pin SOIC W package with a wide operating temperature range of 0°C to 70°C. Key control features include current limit, enable functionality, phase control, and soft start capabilities.

Feature Summary

• Integrates dual N-channel MOSFET drive capability for simplified high-power designs
• Supports boost, forward, and isolated output step-up or step-down topologies
• Includes built-in phase control and soft start mechanisms

Applications

• High power synchronous DC/DC converter systems
• Industrial power supply modules
• Telecommunications equipment power stages

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the 20-pin SOIC W package dimensions match your PCB footprint requirements. Ensure the 9 V to 60 V input range aligns with your system's power rails. Check for RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component for applications requiring integrated high-side and low-side drive signals without external gate drivers. Consider the 150 kHz maximum frequency for balancing efficiency and component size. Evaluate thermal performance within the 0°C to 70°C ambient range. Compare against non-synchronous alternatives if cost reduction is critical and efficiency losses are acceptable.

Part Context

This part belongs to the LT1339 series of high-power synchronous controllers from Analog Devices. It is designed to replace discrete solutions by integrating MOSFET driving logic directly into the IC. The series focuses on simplifying board layout and reducing component count for robust power conversion designs.

Replacement Considerations

LT1339CSW#PBF is the tube-packaged equivalent of this component.