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S-8521D22MC-BXHT2U
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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-8521D22MC-BXHT2U is a synchronous rectification 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 2.2V. The device features a programmable switching frequency up to 600kHz and includes an enable function for power management. Packaged in a compact SOT-23-5 surface-mount configuration, it supports continuous conduction mode operation with a maximum duty cycle of 100%. The component is designed for applications requiring efficient DC-DC conversion within the specified thermal operating range.
Feature Summary
- Synchronous rectification topology for enhanced efficiency
- Fixed 2.2V output voltage capability
- Programmable switching frequency up to 600kHz
- Enable pin control for power management
Applications
- Portable electronic devices
- Battery-powered systems
- Embedded power supply circuits
Procurement Notes
Verify the specific suffix BXHT against official ABLIC documentation to confirm tape-and-reel packaging specifications and moisture sensitivity level. Confirm RoHS compliance status and lead-free soldering requirements prior to integration. Ensure the selected variant matches the required output voltage tolerance and thermal performance characteristics for the target application environment.
Selection Notes
Select this component when a fixed 2.2V output is required from an input range of 2.5V to 16V. Consider the S-8521 series for designs needing synchronous rectification and high-frequency operation up to 600kHz. Evaluate the SOT-23-5 package constraints for space-limited PCB layouts. Compare against other ABLIC regulators if different output voltages or non-synchronous topologies are preferred.
Part Context
This part belongs to the S-8521 series of step-down switching regulator controllers from ABLIC. The series is characterized by synchronous rectification technology and wide input voltage support. It serves as a core power management solution for converting higher battery voltages to stable lower rails in portable electronics and industrial equipment.
Replacement Considerations
Direct substitutes include other parts within the S-8521 series with compatible output voltages and pin configurations. Verify functional equivalence regarding switching frequency ranges and enable logic before substitution.
