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S-8533A45AFT-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-8533A45AFT-TB-G is a positive output step-down DC-DC controller IC manufactured by ABLIC Inc. It operates within an input voltage range of 2.7 V to 6.0 V and provides a fixed output voltage of 4.5 V. The device integrates high-accuracy voltage detection circuits and delay circuits, suitable for battery-powered applications. It is housed in an 8-pin TSSOP package.
Feature Summary
- Integrates high-accuracy voltage detection circuits for precise regulation
- Incorporates internal delay circuits to prevent false triggering
- Supports external MOSFETs and inductors for flexible power design
Applications
- Battery-powered portable electronic devices
- Step-down power supply circuits for low-voltage systems
- General-purpose DC-DC conversion in compact modules
Procurement Notes
Verify the specific suffix 'TB-G' against official ABLIC documentation to confirm lead-free status and packaging details. Ensure compatibility with required input/output voltage ranges before integration. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match current production standards.
Selection Notes
Select this component when a fixed 4.5 V output is required from a 2.7 V to 6.0 V input source. Consider the 8-TSSOP package constraints for PCB layout. Evaluate external component requirements for inductor and MOSFET selection based on target load current and efficiency goals.
Part Context
This part belongs to the S-8533A series of buck regulators. The series is designed for efficient power management in portable electronics. The specific model indicates a fixed output voltage configuration, distinguishing it from adjustable variants within the same family.
Replacement Considerations
Check for direct substitutes such as S-8533A41AFT-TB-U if a different fixed output voltage (e.g., 4.1 V) is acceptable. Verify pin compatibility and electrical specifications before substituting.
