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S-8533A28AFT-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-8533A28AFT-TB-G is a synchronous PWM step-down switching controller manufactured by ABLIC Inc. It operates within an input voltage range of 2.0 V to 16 V and delivers a fixed output voltage of 2.8 V. The device utilizes a TSSOP-8 surface-mount package and supports a maximum operating temperature of +85 °C with a minimum of -40 °C. Designed for power management applications, it integrates synchronization capabilities and standby control features to optimize efficiency in portable electronic systems.
Feature Summary
- Synchronous rectification architecture for enhanced conversion efficiency
- Integrated PWM control with external clock synchronization capability
- Standby mode functionality to minimize quiescent current consumption
Applications
- Portable consumer electronics requiring efficient power regulation
- Battery-powered devices utilizing lithium-ion or lithium-polymer cells
- Embedded systems needing stable low-voltage DC power rails
Procurement Notes
Verify the specific suffix 'TB-G' against official ABLIC documentation to confirm lead-free status and tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints for the TSSOP-8 package. Cross-reference thermal requirements with system design constraints before finalizing procurement orders.
Selection Notes
Select this component when a fixed 2.8 V output is required from a 2.0 V to 16 V input source. The synchronous design offers superior efficiency compared to non-synchronous alternatives. Consider the TSSOP-8 package size for space-constrained layouts. Verify that the operating temperature range meets the environmental conditions of the target application.
Part Context
This part belongs to the S-8533 series of synchronous PWM controllers. The series is characterized by high integration and efficiency for step-down conversion. The S-8533A28AFT variant specifically provides a fixed 2.8 V output, distinguishing it from adjustable or other fixed voltage versions within the same family.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult ABLIC technical support for direct replacements or evaluate generic synchronous buck controllers with matching electrical parameters.
