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S-8521D45MC-BYET2U
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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：60kHz
- 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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Overview
The S-8521D45MC-BYET2U is a step-down switching regulator controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 60 kHz and supports an input voltage range from 2.5 V to 16 V. The device features a 100 µA typical quiescent current for efficient power management. Packaged in a compact SOT-23-5 format, it provides a positive output configuration suitable for space-constrained designs.
Feature Summary
- Integrated step-down DC-DC switching controller topology
- Low quiescent current consumption for battery efficiency
- Fixed internal switching frequency operation
- Compact surface-mount package design
Applications
- Portable electronic devices requiring low standby power
- Battery-powered sensor modules
- Industrial control systems with limited space
- Consumer electronics with single-cell lithium-ion inputs
Procurement Notes
Verify the specific suffix BYET2U against official ABLIC documentation to confirm exact packaging and tape specifications. Confirm RoHS compliance status through the manufacturer's latest environmental declaration. Ensure compatibility with existing PCB footprint dimensions before finalizing procurement orders.
Selection Notes
Select this component when a fixed-frequency buck controller is required with minimal external component count. The 60 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the load current requirements do not exceed the capabilities of the external MOSFETs selected for the design.
Part Context
This part belongs to the S-8521 series of switching regulators from ABLIC. The series is designed for general-purpose power management applications. It complements other PMIC offerings such as LDOs and battery protection ICs within the manufacturer's portfolio.
Replacement Considerations
Check for direct pin-compatible substitutes within the S-8521 family. Verify if alternative manufacturers offer equivalent 60 kHz buck controllers in SOT-23-5 packages. Ensure electrical parameters match before substitution.
