LTC1435AIG#PBF

DC DC Switching Controllers Overview

The LTC1435AIG#PBF is a synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It drives external N-channel power MOSFETs using a fixed frequency architecture. The device operates with an input voltage range of 3.5 V to 36 V and provides an adjustable output voltage from 1.19 V to 9 V. It supports a maximum output current of 15 A with a standard switching frequency of 125 kHz, extendable up to 400 kHz. The component features low quiescent current of 280 uA and offers shutdown functionality. It is housed in a 16-lead SSOP package and operates within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Synchronous step-down topology driving external N-channel MOSFETs
• Fixed frequency architecture for stable regulation
• Low noise design suitable for sensitive applications
• Integrated shutdown control for power management

DC DC Switching Controllers Applications

• Point-of-load regulation in industrial systems
• Power supplies for communication equipment
• Battery-powered devices requiring high efficiency
• Embedded systems with strict noise requirements

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates the lead-free Pb-free package variant when sourcing. Confirm the SSOP-16 package availability as distribution channels may vary. Ensure compatibility with external MOSFET selection for the 15 A current rating. Check for RoHS compliance documentation if required by your manufacturing standards. Validate the operating temperature range against your environmental specifications.

DC DC Switching Controllers Selection Notes

Select this controller when a synchronous buck solution is required with external power stage flexibility. It is appropriate for designs needing adjustable output voltages between 1.19 V and 9 V. Consider the 125 kHz default frequency for balancing size and efficiency. Ensure the external MOSFETs can handle the 15 A load and thermal requirements. Verify that the 3.5 V minimum input voltage aligns with your supply rails.

DC DC Switching Controllers Part Context

This component belongs to the LTC1435A series of high-efficiency synchronous step-down switching regulators. It is part of Analog Devices' portfolio of power management integrated circuits designed for robust performance. The series emphasizes low noise and high efficiency for demanding applications. The #PBF designation specifies the lead-free packaging option compliant with environmental directives.

DC DC Switching Controllers Replacement Considerations

The LTC1435AIG#TRPBF is a tape-and-reel version of the same functional device. Direct pin-to-pin replacement requires verifying the package type matches the SSOP-16 form factor. Ensure any substitute maintains the 15 A capability and 36 V input limit.