RT8540WSC

Overview

The RT8540WSC is a DC-DC regulator manufactured by Richtek USA Inc., designed for power management applications. It operates with an input voltage range of 2.5V to 5.5V and provides an adjustable output voltage between 2.5V and 5.7V. The device utilizes boost topology and features internal switches for efficient power conversion. It is housed in a compact 20-WLCSP package measuring 1.82x2.22mm, suitable for surface mount installation. The component supports PWM dimming control and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates internal switches for step-up voltage regulation
• Supports PWM dimming control functionality
• Compact 20-WLCSP package design

Applications

• LED lighting driver circuits
• General power management systems
• Portable electronic devices requiring voltage boosting

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors as stock may be limited. Ensure compatibility with existing PCB layouts due to the specific 20-WLCSP package dimensions. Review the latest datasheet for any updates regarding environmental compliance or pinout configurations prior to finalizing orders.

Selection Notes

Select this component when a boost converter with integrated switches is required for LED driving or general power regulation. Consider the 20-WLCSP footprint for space-constrained designs. Evaluate the PWM dimming capability if light control is necessary. Verify that the input voltage range of 2.5V to 5.5V aligns with the system's power supply constraints.

Part Context

The RT8540WSC belongs to the category of DC-DC regulators and LED drivers from Richtek USA Inc. It is part of the company's portfolio of power management integrated circuits. The device is specifically engineered for applications requiring efficient voltage stepping up in small form factors. Its classification includes internal switch integration and support for pulse-width modulation control signals.

Replacement Considerations

This product is listed as obsolete. No public confirmed substitute part numbers are available in the provided documentation. Users should consult manufacturer resources for potential cross-reference alternatives or newer generation components.