S-8520B50MC-ASJT2U

Overview

The S-8520B50MC-ASJT2U is a step-down switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 16V and delivers a fixed output voltage of 5.0V. The device supports a maximum duty cycle of 100% and functions with a typical switching frequency of 300kHz. It utilizes a single-channel configuration housed in a compact SOT-23-5 surface-mount package. The component is designed for efficient power management in portable electronics, featuring low quiescent current characteristics suitable for battery-powered applications.

Feature Summary

• Supports 100% duty cycle operation for minimal dropout voltage
• Integrated enable pin for precise power control
• Compact SOT-23-5 package design

Applications

• Portable electronic devices
• Battery-powered equipment
• General-purpose DC-DC conversion

Procurement Notes

Verify the specific suffix ASJT2U against official ABLIC documentation to confirm exact packaging and tape specifications. Confirm availability status as distribution channels may list this part as discontinued or limited supply. Ensure RoHS compliance details match current regulatory requirements for your region before finalizing procurement orders.

Selection Notes

Select this component when a fixed 5.0V output is required from a 2.5V to 16V input source. The 300kHz switching frequency offers a balance between efficiency and external component size. Verify that the load current requirements do not exceed the internal switch capabilities and that the thermal performance of the SOT-23-5 package suits the application environment.

Part Context

This part belongs to the S-8520 series of step-down switching regulators from ABLIC. The series is characterized by high efficiency and low standby current, targeting mobile and industrial applications. The S-8520B50 variant specifically provides a fixed 5.0V output, distinguishing it from adjustable or other fixed voltage options within the same family.

Replacement Considerations

Check for direct substitutes within the S-8520 series with different output voltages if system requirements change. Verify pin compatibility with alternative manufacturers' buck controllers offering similar 300kHz frequencies and SOT-23-5 footprints.