S-8533A55AFT-TB-G

$1.16

Description：IC REG CTRLR BUCK 8TSSOP
Series：-
Mfr：ABLIC Inc.
Package：Tape & Reel (TR)

SKU:d1272956c5e3 Category: DC DC Switching Controllers Brand: ABLIC Inc.

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Product introduction

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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S-8533A55AFT-TB-G

Overview

The S-8533A55AFT-TB-G is a synchronous PWM step-down controller manufactured by ABLIC Inc. It operates within an input voltage range of 2.7 V to 16 V and features a fixed switching frequency of 550 kHz. The device utilizes a TSSOP-8 package with lead-free construction compliant with RoHS standards. Designed for power management applications, it supports output voltages down to 0.9 V and includes integrated protection mechanisms such as overcurrent protection and thermal shutdown to ensure reliable operation in compact electronic systems.

Feature Summary

Synchronous rectification architecture for enhanced conversion efficiency
Integrated overcurrent protection and thermal shutdown safeguards
Fixed high-frequency switching operation to minimize external component size

Applications

Portable consumer electronics power supplies
Industrial equipment control circuits
Battery-powered devices requiring efficient step-down regulation

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 the part number with current manufacturer notices to confirm active production status and availability constraints.

Selection Notes

Select this component when designing space-constrained systems requiring high-efficiency DC-DC conversion. The fixed 550 kHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Verify that the required output voltage falls within the adjustable range supported by the feedback network configuration.

Part Context

This component belongs to the S-8533 series of synchronous PWM controllers from ABLIC. The series is characterized by its ability to drive external N-channel MOSFETs for efficient step-down conversion. The specific model integrates protection features suitable for modern portable and industrial applications where reliability and compact form factors are critical design parameters.