RT5713-K1WSC(2)

Voltage Regulators - DC DC Switching Regulators Overview

The RT5713-K1WSC(2) is a synchronous step-down converter from Richtek's HCOT nanoPower family, featuring a typical quiescent current of 360 nA. It operates with an input voltage range of 2.2 V to 5.5 V and delivers up to 0.5 A output current (peak 0.5 A). The device utilizes hysteretic constant-on-time operation with internal compensation for optimized transient response. It offers two-level fixed output voltage selection via the VSEL pin, supporting outputs such as 0.8 V or 1.8 V. The component is housed in a WL-CSP-6B package measuring 1.415 x 0.885 mm.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Hysteretic constant-on-time operation with internal compensation
• Two-level output voltage selection via VSEL pin
• Ultra-low quiescent current for high light-load efficiency
• Integrated protection mechanisms including OCP and OTP

Voltage Regulators - DC DC Switching Regulators Applications

• Handheld devices
• Portable information equipment
• Battery powered equipment
• Wearable devices
• Smartwatches

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix K1WSC(2) against the manufacturer datasheet to confirm the exact fixed output voltage configuration, as this variant denotes a specific factory-set level. Ensure the ordering part number matches the required WL-CSP-6B package dimensions and pitch. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement to ensure compatibility with assembly processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing battery-powered systems requiring minimal standby power consumption and compact board space. The internal compensation simplifies design by reducing external component count compared to externally compensated converters. Consider the 0.5 A current limit when sizing for peak load demands, ensuring the application does not exceed the specified peak current threshold during transient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the RT5713/RT5714 nanoPower Buck Converter series, designed for ultra-low power applications. It shares the same core architecture and package options as the RT5714 but differs in maximum output current capability. The series is characterized by its tiny 6-pin footprint and ability to support solution sizes under 7 mm², making it suitable for space-constrained portable electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The RT5714 serves as a higher-current alternative within the same family. Verify if the increased 1 A capacity of the RT5714 is necessary or if the lower cost of the RT5713 is preferred. No direct cross-brand substitutes are confirmed in the provided documentation.