S-8521D32MC-BXRT2G

Overview

The S-8521D32MC-BXRT2G is a synchronous step-down DC-DC switching regulator manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 10V and delivers a fixed output voltage of 3.2V. The device utilizes a SOT-23-5 surface-mount package and supports a maximum switching frequency of 60kHz with up to 100% duty cycle capability. It functions reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification topology for enhanced conversion efficiency
• Fixed output voltage configuration simplifies circuit design
• Integrated enable control feature for power management

Applications

• Portable electronic devices requiring efficient power regulation
• Battery-powered systems utilizing lithium-ion or lithium-polymer cells
• Embedded circuits needing stable 3.2V supply rails

Procurement Notes

Verify the specific suffix BXRT against official ABLIC documentation to confirm tape-and-reel packaging specifications and marking codes. Ensure compatibility with RoHS3 standards and check for any recent PCN updates regarding material changes before finalizing procurement orders.

Selection Notes

Select this component when a compact, low-pin-count solution is required for stepping down voltages between 2.5V and 10V to a precise 3.2V level. Consider the SOT-23-5 footprint constraints and the thermal performance limits within the specified operating temperature range during board layout.

Part Context

This part belongs to the S-8521 series of synchronous buck regulators from ABLIC. The series is characterized by high integration and small form factors, designed to replace linear regulators in space-constrained applications while improving overall system energy efficiency through switched-mode operation.

Replacement Considerations

Consult official substitution guides for compatible parts within the S-8520/8521 family. Verify pinout compatibility and electrical parameter alignment before replacing existing inventory.