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S-8533A39AFT-TB-G
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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
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Overview
The S-8533A39AFT-TB-G is a synchronous step-down switching regulator controller from ABLIC Inc., designed for efficient DC-DC voltage regulation. It operates with a maximum supply voltage of 16V and utilizes synchronous PWM control to manage power conversion. The device features integrated soft-start functionality, which gradually ramps up the duty cycle upon enable to limit inrush current. It provides a positive output configuration and is housed in a lead-free TSSOP-16 package suitable for surface mount applications.
Feature Summary
- Synchronous PWM control architecture for high-efficiency step-down regulation
- Integrated soft-start circuitry to manage startup transients
- Positive output configuration with transistor driver capability
Applications
- Portable electronic devices requiring stable low-voltage rails
- Industrial control systems needing efficient power management
- Battery-powered equipment utilizing buck conversion topologies
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status as specified in official datasheets. Ensure the specific suffix matches required packaging and temperature ratings. Request original documentation to validate part revision and manufacturing origin before integration into production designs.
Selection Notes
Select this controller when synchronous rectification is required for improved efficiency in buck converter designs. Consider the 16V maximum input rating and the need for external MOSFETs compatible with the internal driver. Evaluate thermal performance requirements based on the TSSOP-16 package limitations and expected load currents in the target application environment.
Part Context
This component belongs to the S-8533 Series of switching controllers by ABLIC Inc., specialized for battery protection and power management ICs. The series targets lithium-ion and lithium-polymer battery systems, offering integrated solutions for cell monitoring and voltage regulation within compact form factors suitable for modern portable electronics.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing PCB footprints and control loop stability if considering alternative synchronous buck controllers from other manufacturers.
