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S-8533A27AFT-TB-U
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 8TSSOP
- 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)：2.7V ~ 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-8533A27AFT-TB-U is a synchronous PWM step-down switching controller manufactured by ABLIC Inc. It operates within the S-8533 series and is designed for power management applications. The component is housed in an 8-pin TSSOP package and weighs approximately 191 mg. This specific part number is classified as End-of-Life (EOL) with discontinued status, meaning it is no longer actively produced or stocked by major distributors such as Mouser. Verification of current availability requires checking official discontinuation notifications.
Feature Summary
- Synchronous pulse-width modulation control architecture
- Step-down voltage regulation capability
- Integrated shutdown control functionality
Applications
- Portable electronic devices requiring efficient power conversion
- Battery-powered systems utilizing step-down topology
- General-purpose power management integrated circuits
Procurement Notes
This component is officially discontinued by ABLIC Inc. Distributors indicate restricted supply or non-availability in many regions. Buyers must verify stock status through authorized channels and review official product discontinuation notifications dated around May and June 2025 to confirm final lifecycle status before procurement attempts.
Selection Notes
Designers should consider this part obsolete due to its End-of-Life status. New designs are advised to select active alternatives from the same manufacturer or compatible competitors. Verify pin compatibility and electrical specifications if substituting with other S-8533 variants or similar synchronous buck controllers.
Part Context
Part of the S-8533 series of switching controllers. Manufactured by ABLIC Inc., a specialist in precision analog and mixed-signal ICs. The device falls under the PMIC category. Documentation includes datasheets and multiple EOL notification PDFs confirming its retirement from production lines.
Replacement Considerations
No public substitute part numbers are confirmed in the provided source material. Users must consult ABLIC's official documentation or distributor catalogs for valid cross-references or next-generation replacements.
