LTC1435AIG#TRPBF

DC DC Switching Controllers Overview

The LTC1435AIG#TRPBF is a high-efficiency, low-noise synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It utilizes a fixed-frequency current-mode architecture to drive external N-channel power MOSFETs. The device supports an input voltage range of 3.5 V to 36 V and provides an adjustable output voltage from 1.19 V to 9 V with a maximum output current capability of 15 A. Operating at a fixed switching frequency of 125 kHz, it ensures stable performance across a temperature range of -40°C to +85°C. The component features a shutdown function and operates with a quiescent supply current of 280 µA.

DC DC Switching Controllers Feature Summary

• Synchronous step-down topology for high efficiency
• Fixed-frequency current-mode control architecture
• Low noise design suitable for sensitive loads
• Integrated shutdown functionality

DC DC Switching Controllers Applications

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

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-16 package dimensions match your PCB footprint constraints. Cross-reference the manufacturer part number directly with Analog Devices to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this controller when designing a buck converter requiring external MOSFETs for higher current handling than integrated solutions offer. The 125 kHz frequency balances size and efficiency. Verify that the required output voltage falls within the 1.19 V to 9 V range. Consider thermal management for the external power stage given the 15 A potential load.

DC DC Switching Controllers Part Context

This component belongs to the LTC1435A series of synchronous buck regulators. It is designed as a controller rather than a fully integrated switch, allowing designers to select optimal external MOSFETs for specific current and voltage ratings. The SSOP-16 package provides a compact solution for space-constrained applications while maintaining robust thermal performance.

DC DC Switching Controllers Replacement Considerations

Consult Analog Devices documentation for direct pin-compatible alternatives within the LTC1435 family. Verify that any substitute maintains the 125 kHz switching frequency and compatible gate drive characteristics for existing external MOSFETs.