LTC1439CGW#PBF

DC DC Switching Controllers Overview

The LTC1439CGW#PBF is a dual synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5V to 30V and supports a fixed switching frequency architecture that can be phase-locked up to 400kHz. The device drives external N-channel power MOSFETs to provide two independent regulated outputs. Key electrical parameters include a maximum duty cycle of 99% and a supply voltage range of 3.5V to 30V. It features integrated control characteristics such as enable, power-on reset, and soft-start functionality.

DC DC Switching Controllers Feature Summary

• Dual synchronous buck controller architecture driving external N-channel MOSFETs
• Phase-lockable fixed frequency operation for synchronized multi-phase designs
• Integrated power-on reset and soft-start circuitry for controlled startup sequences

DC DC Switching Controllers Applications

• High efficiency dual output step-down converters
• Low noise switching regulator systems
• Automotive power management applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the SSOP-36 package dimensions against your PCB footprint requirements. Ensure the operating temperature range of 0°C to 70°C aligns with your environmental specifications. Cross-reference the datasheet revision date to ensure compatibility with your design constraints.

DC DC Switching Controllers Selection Notes

Select this component when a dual-output synchronous buck solution is required with precise phase synchronization capabilities. It is suitable for designs needing high efficiency at moderate frequencies up to 400kHz. Consider the external MOSFET selection carefully as the controller does not integrate power switches. Evaluate the thermal performance of the SSOP-36 package for your specific current load requirements.

DC DC Switching Controllers Part Context

This part belongs to the LTC1438/LTC1439 family of high-efficiency, low-noise synchronous step-down switching regulators. These controllers are designed to replace traditional linear regulators in applications requiring higher efficiency and lower heat dissipation. The family offers flexible configuration options for various industrial and automotive power distribution networks.

DC DC Switching Controllers Replacement Considerations

LTC1439CGW#TRPBF is a direct replacement offering tape-and-reel packaging instead of tubes.