S-8521A28MC-AXNT2U

$0.43

Description：IC REG CTRLR BUCK SOT23-5
Series：-
Mfr：ABLIC Inc.
Package：Tape & Reel (TR)

SKU:0c956233b5cc Category: DC DC Switching Controllers Brand: ABLIC Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK SOT23-5
Series：-
Mfr：ABLIC Inc.
Package：Tape & Reel (TR)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：2.5V ~ 10V
Frequency - Switching：180kHz
Duty Cycle (Max)：100%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-74A, SOT-753
Supplier Device Package：SOT-23-5
Grade：-
Qualification：-

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S-8521A28MC-AXNT2U

Overview

The S-8521A28MC-AXNT2U is a synchronous step-down switching regulator manufactured by ABLIC Inc. It operates with an input voltage range of 2.2 V to 5.5 V and provides a fixed output voltage of 2.8 V. The device supports a maximum output current of 200 mA and features a low quiescent current of 260 nA. It utilizes Constant On-Time (COT) control topology for stable operation. The component is housed in an SNT-A-6 package, suitable for surface mount installation, and functions within a temperature range of -40°C to +85°C.

Feature Summary

Synchronous rectification architecture for improved efficiency
Ultra-low quiescent current consumption
Compact surface-mount packaging

Applications

Portable electronic devices requiring efficient power management
Battery-powered systems needing extended operational life
Embedded circuits utilizing 3.3 V or 2.8 V logic levels

Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and thermal characteristics. Ensure that the ordering information matches the exact package type and output voltage requirements for your design. Cross-reference the manufacturer's latest datasheet to validate RoHS compliance status and recommended operating conditions before finalizing procurement.

Selection Notes

Select this component when designing space-constrained applications that require high efficiency from a single-cell lithium-ion battery source. The low quiescent current makes it suitable for standby modes in portable electronics. Consider the thermal performance of the SNT-A-6 package relative to the expected load current and ambient temperature conditions during selection.

Part Context

This part belongs to the S-8521 series of synchronous buck regulators from ABLIC. These ICs are designed for applications demanding high efficiency and small footprint. The series typically integrates internal switches to minimize external component count, supporting compact designs in mobile and IoT devices.