S-8520E15MC-BJAT2U

Overview

The S-8520E15MC-BJAT2U is a CMOS step-down switching regulator controller from the ABLIC S-8520 series. It operates with a fixed PWM control mode and supports an input voltage range of 2.5 V to 16 V. The device provides a fixed output voltage of 1.5 V and features a typical quiescent current of 100 uA. It functions within a temperature range of -40°C to +85°C and is housed in a compact SOT-23-5 package.

Feature Summary

• Fixed pulse-width modulation (PWM) control architecture for stable regulation
• Integrated reference voltage source and oscillation circuit
• Low power consumption design suitable for battery-operated applications

Applications

• Portable electronic devices requiring efficient DC-DC conversion
• Battery-powered consumer electronics
• General-purpose low-voltage power management systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific environmental declarations such as REACH registration. Ensure the part number suffix matches exact packaging requirements, as availability may vary by region and distributor stock levels.

Selection Notes

Select this controller when a fixed 1.5 V output is required without external feedback adjustment. It is appropriate for designs prioritizing simplicity and fixed-frequency operation over adjustable voltage ranges. Ensure the external inductor and capacitor values are selected to support the internal 300 kHz switching frequency for optimal efficiency.

Part Context

This component belongs to the S-8520 series of step-down switching regulator controllers manufactured by ABLIC Inc. The series utilizes CMOS technology to provide high-efficiency power conversion in a small footprint. It is designed to drive external N-channel MOSFETs for buck converter topologies.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in available documentation. Verify compatibility with alternative S-8520 variants only if pinout and electrical specifications match exactly.