S-8520E16MC-BJBT2G

$0.43

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

SKU:21bc7bdae356 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

Download product information

S-8520E16MC-BJBT2G

Overview

The S-8520E16MC-BJBT2G is a CMOS step-down switching regulator controller from the S-8520 series by ABLIC Inc. It utilizes Pulse Width Modulation (PWM) control to achieve low ripple and high efficiency. The device features a duty ratio range of 0% to 100%, an internal error amplifier, and a soft-start circuit to prevent startup overshoot. It operates with a supply voltage between 2.5V and 16V and supports a maximum switching frequency of 375kHz. The component is housed in a compact SOT-23-5 package.

Feature Summary

Integrates PWM control circuitry for linear duty ratio variation up to 100%.
Includes built-in soft-start functionality to manage initial power-up conditions.
Contains an internal reference voltage source and oscillation circuit.

Applications

Battery-powered portable electronic devices
General-purpose DC-DC conversion systems
Embedded power management circuits

Procurement Notes

Verify the specific suffix codes against the manufacturer's official datasheet to confirm output configuration and tolerance. Ensure that external components such as the Pch MOS FET or diode are selected to match the controller's electrical limits. Confirm RoHS compliance status through the latest environmental declaration documents provided by ABLIC Inc.

Selection Notes

Select this controller when a fixed-frequency PWM operation is required for stable noise performance. The 0% to 100% duty cycle capability allows for flexible input-to-output voltage ratios. Consider the S-8521 series if automatic transition to PFM mode under light loads is necessary for improved standby efficiency.

Part Context

This component belongs to the S-8520/8521 series of switching regulator controllers. While the S-8521 variant offers switchable PWM/PFM modes, the S-8520 series is dedicated to pure PWM control. Both series share common architectural elements like the error amplifier and soft-start circuit within the same product family.

Replacement Considerations

S-8520B18MC-ARDT2U

FAQ

Does the S-8520E16MC-BJBT2G support PFM control?

No, the S-8520 series is designed exclusively for PWM control. The S-8521 series is required for devices that support PFM or switchable PWM/PFM modes.