LTC1435CG#PBF

DC DC Switching Controllers Overview

The LTC1435CG#PBF is a synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It utilizes a fixed-frequency architecture to drive external N-channel power MOSFETs, functioning as a high-efficiency, low-noise buck converter. The device operates with an input voltage range of 3.5 V to 36 V and provides an adjustable output voltage between 1.19 V and 9 V. Key electrical specifications include a maximum output current capability of 15 mA when configured appropriately, a switch frequency of 125 kHz, and a quiescent current of 260 uA. It features a shutdown function and maintains a load regulation of 0.5%. The component is housed in a 16-lead SSOP package and is rated for operation within a temperature range of 0°C to +70°C.

DC DC Switching Controllers Feature Summary

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

DC DC Switching Controllers Applications

• Battery-powered portable equipment requiring efficient voltage regulation
• Industrial control systems utilizing 5V or 12V bus architectures
• Communication infrastructure powering low-current logic circuits
• Embedded systems needing isolated or non-isolated DC/DC conversion stages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (PBF vs TRPBF) to confirm lead-free compliance and reel packaging requirements. Ensure the SSOP-16 footprint matches your PCB layout constraints. Confirm that the external MOSFET selection aligns with the controller's drive capabilities and thermal requirements. Check for RoHS certification details in the official datasheet before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when a compact, synchronous buck solution is required for moderate current loads up to 15 mA. It is ideal for designs prioritizing low quiescent current and low output noise over high-power delivery. Consider the 125 kHz switching frequency for EMI management and filter size optimization. Ensure the input voltage range covers your system's minimum and maximum supply variations.

DC DC Switching Controllers Part Context

The LTC1435 belongs to Analog Devices' family of high-performance switching regulator controllers. Unlike integrated power switches, this part requires external MOSFETs, offering flexibility in current handling and thermal design. It complements other PMIC solutions by providing a dedicated, efficient step-down control stage for applications where discrete power stages are preferred for customization.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers for the LTC1435CG#PBF were not identified in the provided source material. Verify compatibility with alternative controllers based on pinout, voltage ranges, and drive characteristics if cross-referencing is necessary.