SCT2432STER

Voltage Regulators - DC DC Switching Regulators Overview

The SCT2432STER is a synchronous step-down DC-DC converter from SCT, featuring a wide input voltage range of 3.8V to 40V and a continuous output current capability of 3.5A. It integrates an 80mΩ high-side MOSFET and a 50mΩ low-side MOSFET, operating with peak current mode control. The device supports a fixed switching frequency of 570kHz and includes pulse skip modulation (PSM) for light-load efficiency, achieving a typical static current of 25uA. It offers an adjustable output voltage from 800mV to 40V, operates within a junction temperature range of -40°C to +125°C, and utilizes an ESOP-8 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-efficiency power MOSFETs with low on-resistance for reduced conduction losses
• Supports pulse skip modulation to maintain high efficiency under light load conditions
• Features frequency spread spectrum modulation to optimize electromagnetic interference performance
• Provides comprehensive protection mechanisms including overcurrent, overtemperature, and overvoltage safeguards

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring efficient power conversion
• Wireless charging equipment power stages
• Automotive electronic systems
• Industrial distributed power architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix STER against the manufacturer's official datasheet to confirm pinout compatibility and thermal pad configuration. Ensure the ordering information matches the exact package variant required for your PCB footprint. Cross-reference the component marking with the genuine SCT label to prevent counterfeit risks during sourcing.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 40V is required alongside high continuous current delivery. It is suitable for designs prioritizing light-load efficiency through PSM operation. Consider the fixed 570kHz frequency for balancing component size and transient response. Verify that the external feedback network can support the minimum output voltage requirement of 800mV.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SCT24xx series of synchronous buck converters designed for general-purpose power management. It shares architectural similarities with other models in the family but is distinguished by its specific internal compensation and fixed switching frequency parameters. The series targets applications needing robust performance in automotive and industrial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly documented equivalents include LMR14030 and JW5117. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Confirm that the replacement device meets the same AEC-Q100 or industrial grade requirements if applicable to the target application environment.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the SCT2432STER support external clock synchronization?

No, the SCT2432STER operates with a fixed switching frequency of 570kHz and does not support external clock synchronization, unlike some other variants in the series.

What is the minimum output voltage supported by this converter?

The SCT2432STER supports an adjustable output voltage range starting from 800mV up to 40V.