S-8520E15MC-BJAT2G

$0.43

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

SKU:f51ba4f2eef0 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：300kHz
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

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S-8520E15MC-BJAT2G

Overview

The S-8520E15MC-BJAT2U is a CMOS step-down switching regulator controller from the ABLIC S-8520 series. It utilizes Pulse Width Modulation (PWM) control to provide low-ripple power and high efficiency. The device features a reference voltage source, oscillation circuit, error amplifier, and soft-start circuit. It operates with an input voltage range of 2.5V to 16V and supports a maximum duty cycle of 100%. The component is housed in a SC-74A (SOT-753) surface-mount package and functions within a temperature range of -40°C to +85°C.

Feature Summary

PWM control circuit capable of varying duty ratio linearly from 0% up to 100%
Integrated soft-start circuit prevents output overshoot at startup
Built-in error amplifier for precise regulation

Applications

Step-down DC-DC converter designs requiring external Pch MOSFETs
Power supply circuits for portable electronic devices
Embedded systems requiring stable regulated voltage rails

Procurement Notes

Verify the specific suffix 'BJAT2U' against official ABLIC documentation to confirm pinout compatibility and marking codes. Ensure the ordering part number matches the exact tape and reel specifications required for automated assembly processes. Cross-reference the manufacturer's latest datasheet revision to validate environmental compliance status and any recent design changes.

Selection Notes

Select this controller when a dedicated PWM step-down topology is required rather than integrated solutions. It necessitates external components including a coil, capacitors, diode, and Pch power MOS FET or PNP transistor. Consider the 180kHz switching frequency and 100% duty cycle capability for applications demanding wide input-to-output voltage ratios.

Part Context

This component belongs to the S-8520/8521 Series manufactured by ABLIC Inc. The S-8520 series specifically provides PWM control, distinguishing it from the S-8521 series which offers switchable PWM/PFM modes. These controllers are designed to function as complete step-down switching regulators when paired with appropriate external passive and active components.