S-8521A33MC-AXST2U

$0.43

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

SKU:236857c05235 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-8521A33MC-AXST2U

Overview

The S-8521A33MC-AXST2U is a synchronous rectification buck switching regulator IC manufactured by ABLIC Inc. It provides a fixed 3.3V output voltage with a maximum output current of 1A. The device operates within an input voltage range of 2.5V to 16V and supports a switching frequency of 180kHz. It features a maximum duty cycle of 100% and includes enable control functionality. The component is designed for surface mount installation in SC-74A (SOT-753) packages, operating reliably across a temperature range of -40°C to +85°C.

Feature Summary

Integrated synchronous rectification for improved efficiency
Fixed 3.3V output voltage regulation
Supports high output current up to 1A
Built-in enable control function

Applications

Portable electronic devices requiring efficient power conversion
Embedded systems utilizing low-voltage DC power supplies
Industrial equipment needing stable 3.3V rail generation

Procurement Notes

Verify the specific suffix AXST2U against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprint designs for SC-74A packages. Confirm environmental compliance status such as RoHS requirements prior to final procurement decisions.

Selection Notes

Select this component when a fixed 3.3V output is required with high current capability. Consider the 180kHz switching frequency for balancing size and efficiency. Verify that the input voltage range of 2.5V to 16V aligns with the system power supply architecture.

Part Context

This part belongs to the S-8521 series of synchronous buck regulators from ABLIC. It complements other PMIC offerings by providing integrated power stage control in a compact form factor. The series targets applications demanding high efficiency and small solution size.

Replacement Considerations

Direct substitutes may include other ABLIC S-8521 variants with different output voltages or current ratings. Cross-reference pinouts and thermal characteristics before substituting with non-ABLIC components.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.