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S-8521E22MC-BLHT2U
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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 ~ 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
- Grade：-
- Qualification：-
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Overview
The S-8521E22MC-BLHT2U is a synchronous rectification step-down switching regulator manufactured by ABLIC Inc. It operates with an input voltage range of 2.5V to 16V and provides a fixed output voltage of 2.2V. The device features a high switching frequency of 1MHz, enabling the use of small external components. It includes integrated N-channel power MOSFETs for efficient synchronous rectification. The IC supports an enable function and offers protection against overcurrent conditions. It is housed in a compact SOT-23-5 package suitable for surface-mount applications.
Feature Summary
- Integrated synchronous rectification using internal N-channel MOSFETs for improved efficiency
- High switching frequency operation allows for miniaturization of external passive components
- Built-in overcurrent protection circuitry safeguards the device during fault conditions
- Enable pin functionality allows for precise power management control
Applications
- Portable battery-powered electronic devices
- Embedded systems requiring stable low-voltage power rails
- Consumer electronics with space-constrained PCB layouts
- Industrial equipment utilizing DC-DC conversion
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status prior to integration. Ensure storage conditions adhere to moisture sensitivity level requirements. Check for recent product change notifications regarding marking or material composition updates before finalizing procurement orders.
Selection Notes
Select this model when a fixed 2.2V output is required from a 2.5V to 16V input source. The 1MHz switching frequency is optimal for designs prioritizing minimal board space. Consider thermal dissipation capabilities based on load current and ambient temperature. Verify that the SOT-23-5 package dimensions fit within the mechanical constraints of the target application enclosure.
Part Context
This component belongs to the S-8521 series of synchronous buck regulators from ABLIC. The series is designed for general-purpose power management in portable and industrial applications. It complements other PMIC offerings by providing efficient step-down conversion with integrated power switches, reducing the need for external Schottky diodes commonly found in non-synchronous designs.
Replacement Considerations
Direct substitutes may include other ABLIC synchronous buck regulators with compatible output voltages and package types. Cross-reference electrical parameters such as input voltage range, switching frequency, and current limits. Ensure pin compatibility if maintaining existing PCB footprints. Consult official replacement guides for end-of-life part transitions.
