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S-8533A50AFT-TB-U
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 8TSSOP
- Series：-
- Mfr：ABLIC Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2.7V ~ 16V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Soft Start
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The S-8533A50AFT-TB-U is a synchronous step-down (buck) switching controller manufactured by ABLIC Inc. It operates within a supply voltage range of 2.7V to 16V and provides a fixed output voltage of 5.0V. The device utilizes PWM control topology with integrated synchronous rectification for improved efficiency. It is housed in an 8-TSSOP package, designed for compact power management applications requiring stable voltage regulation.
Feature Summary
- Integrated synchronous rectification for enhanced conversion efficiency
- Fixed 5.0V output voltage capability
- Wide input supply voltage range supporting diverse power sources
Applications
- Portable electronic devices requiring stable 5V rails
- Industrial control systems with wide input voltage variations
- Consumer electronics power management modules
Procurement Notes
Verify the specific suffix 'TB-U' against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint for the 8-TSSOP configuration. Cross-reference the exact part number with authorized distributors to avoid counterfeit components and confirm current manufacturing status.
Selection Notes
Select this component when a fixed 5.0V output is required from inputs between 2.7V and 16V. The synchronous design offers better efficiency than non-synchronous alternatives. Consider the 8-TSSOP package size constraints and thermal requirements during layout. Verify that the external inductor and capacitor values meet the controller's stability requirements as defined in the datasheet.
Part Context
This part belongs to the S-8533 series of switching controllers from ABLIC. The series focuses on efficient DC-DC conversion solutions. The 'A50' designation typically indicates the fixed output voltage setting. The 'FT' likely refers to the temperature grade or specific variant within the product line, while 'TB-U' specifies the packaging and terminal finish details.
Replacement Considerations
Direct replacements must match the 8-TSSOP package, 5.0V fixed output, and 2.7V-16V input range. Check pin-to-pin compatibility if substituting with other buck controllers. Ensure the replacement supports synchronous rectification if efficiency is critical. Verify operating temperature ranges align with application needs.
