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S-8521F50MC-BQJT2U
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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：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
- Grade：-
- Qualification：-
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Overview
The S-8521F50MC-BQJT2U is a step-down switching regulator controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 300 kHz and features an input voltage range of 2.5 V to 16 V. The device provides a fixed output voltage of 5.0 V with a tolerance of ±1%. It utilizes PWM control and includes an enable function for power management. The component is housed in a compact SOT-23-5 package and supports operation within a temperature range of -40°C to +85°C.
Feature Summary
- Integrated step-down DC-DC switching controller topology
- Fixed 300 kHz internal oscillator for consistent performance
- Built-in enable pin for system power control
Applications
- Portable electronic devices requiring efficient power conversion
- Battery-powered equipment utilizing step-down regulation
- General-purpose power management circuits
Procurement Notes
Verify the specific suffix BQJT2U against official ABLIC documentation to confirm exact packaging and tape-and-reel specifications. Confirm current availability status as distribution data may vary. Ensure compatibility with required operating temperatures and input voltage ranges before finalizing procurement decisions.
Selection Notes
Select this component when a fixed 5.0 V output is required from a 2.5 V to 16 V input source. The 300 kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the load requirements align with the controller's driver capabilities and that the SOT-23-5 package fits the design constraints.
Part Context
This part belongs to the S-8521 series of step-down switching regulators from ABLIC. The series is designed for applications needing efficient voltage conversion in space-constrained environments. The S-8521 models typically offer fixed output voltages and integrated control logic to simplify circuit design.
Replacement Considerations
Check for direct substitutes within the S-8521 family with different output voltages or package options. Verify functional compatibility with existing PCB layouts and external component values before substituting.
