S-8521B19MC-ATET2U

$0.43

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

SKU:f09ede6f3b78 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 ~ 16V
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-8521B19MC-ATET2U

Overview

The S-8521B19MC-ATET2U is a synchronous step-down switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 16V and provides a fixed output voltage of 1.9V. The device features a switch frequency of 300kHz and maintains a typical quiescent current of 100uA. Packaged in a compact SOT-23-5 outline, it supports surface-mount installation and functions across a temperature range of -40°C to +85°C.

Feature Summary

Synchronous rectification architecture for enhanced efficiency
Fixed 1.9V output voltage configuration
Integrated enable control functionality

Applications

Portable consumer electronics power management
Battery-operated devices requiring low standby current
Embedded systems with single-rail supply requirements

Procurement Notes

Verify the specific suffix ATET2U against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints and thermal design constraints before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.9V output is required from a wide input voltage range up to 16V. Consider the 300kHz switching frequency for balancing component size and efficiency needs in space-constrained designs.

Part Context

This part belongs to the S-8521 series of synchronous buck controllers. It complements other regulators in the ABLIC portfolio designed for portable applications, offering integrated power switches for simplified external circuitry compared to non-synchronous alternatives.

Replacement Considerations

Direct substitutes include S-8521BxxMC variants with different fixed output voltages. Verify electrical parameters and pinout compatibility before substitution.

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.