LTC1435AIS#PBF

DC DC Switching Controllers Overview

The LTC1435AIS#PBF is a high-efficiency, low-noise synchronous step-down switching regulator controller manufactured by Analog Devices. It operates within an input voltage range of 3.5 V to 36 V and supports output voltages from 1.19 V to 9 V. The device delivers up to 15 A of output current with a fixed switching frequency of 125 kHz. It features a minimum operating temperature of -40°C and a maximum of +85°C. The unit is housed in a 16-lead SSOP package and includes shutdown functionality with a typical quiescent current of 280 µA.

DC DC Switching Controllers Feature Summary

• Synchronous step-down architecture driving external N-channel power MOSFETs
• Wide input voltage range suitable for various supply rails
• Low noise design optimized for sensitive analog loads
• Very low dropout operation with up to 99% duty cycle

DC DC Switching Controllers Applications

• Point-of-load regulation for digital signal processors
• Power supplies for communication equipment
• Industrial control system power distribution
• Battery-powered devices requiring efficient step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm the 'IS' grade meets your required temperature range specifications. Check current availability status as supply may be limited or subject to factory order constraints. Ensure the 16-lead SSOP footprint matches your PCB layout requirements before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring high efficiency and low output ripple. The fixed frequency architecture simplifies filter design compared to variable frequency controllers. Consider the external MOSFET selection carefully to support the 15 A current capability. Evaluate thermal management needs based on the specific load conditions and ambient environment.

DC DC Switching Controllers Part Context

This part belongs to the LTC1435A series of synchronous buck regulators. It serves as a controller rather than an integrated switch, allowing designers to optimize power stage components. The series is designed for applications demanding precise voltage regulation and high performance under varying load conditions.

DC DC Switching Controllers Replacement Considerations

The LTC1435AIG#TRPBF is a compatible alternative offering identical electrical characteristics but supplied in tape and reel packaging instead of tubes. Verify pin compatibility and thermal performance when substituting between these package variants.