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S-8533A48AFT-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-8533A48AFT-TB-U is a synchronous PWM step-down switching controller manufactured by ABLIC Inc. It belongs to the S-8533 series of power management ICs and is housed in an 8-pin TSSOP package. The device integrates control logic for external MOSFETs to regulate output voltage. Official documentation confirms its classification as a switch controller with synchronous rectification capabilities. This specific part number is designated as End-of-Life (EOL) and is no longer actively supported for new production orders.
Feature Summary
- Synchronous PWM control architecture for efficient step-down conversion
- Integrated driver circuitry for external N-channel MOSFETs
- Compact TSSOP-8 surface-mount packaging
Applications
- Portable electronic devices requiring regulated DC power
- Battery-powered systems utilizing step-down topology
- General-purpose low-voltage power supply circuits
Procurement Notes
This component is officially discontinued and listed as End-of-Life by the manufacturer. Availability is restricted to remaining stock or secondary market sources only. Buyers must verify authenticity and condition carefully, as standard manufacturing support and warranty obligations are typically void for EOL parts. Cross-referencing with current active alternatives is strongly recommended for new designs.
Selection Notes
Designers should evaluate this part primarily for maintenance or legacy system repairs rather than new product development due to its discontinued status. When selecting replacements, prioritize components from the same manufacturer family that offer updated availability and long-term supply stability. Ensure pin compatibility and electrical specifications match the original design requirements before substitution.
Part Context
The S-8533 series represents ABLIC's line of synchronous buck controllers designed for high efficiency in portable applications. These devices utilize pulse-width modulation to regulate output voltage while minimizing power loss through synchronous rectification. The series supports various output voltage configurations determined by external resistor networks, catering to diverse low-power electronics needs.
Replacement Considerations
Official substitutes include other variants within the S-8533 series such as S-8533A14AFT-TB-U and S-8533A30AFT-TB-U, which share identical packaging and functional architectures but differ in fixed output voltage settings.
