S-8333AAFB-T8T1G

Overview

The S-8333AAFB-T8T1G is a CMOS step-up switching regulator manufactured by ABLIC Inc. It operates with a minimum input voltage of 1.8 V and features an internal oscillator capable of frequencies up to 1.2 MHz. The device utilizes PWM control for efficient voltage conversion. It is housed in an 8-pin TSSOP package and is designed for portable systems requiring low-voltage operation.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller
• Supports external adjustment of oscillation frequency via ROSC pin
• Includes under-voltage lockout and timer latch short-circuit protection

Applications

• Power supply for LCD modules
• Portable electronic systems operating on low voltage
• Battery-powered devices requiring step-up regulation

Procurement Notes

Verify the specific output voltage configuration associated with the suffix 'FB' against the official datasheet before procurement. Confirm RoHS compliance status and ensure the TSSOP-8 package dimensions match your PCB footprint requirements. Check for any recent product change notifications regarding material composition or manufacturing site changes.

Selection Notes

Select this component when a fixed output voltage is required alongside high-frequency PWM control. Ensure the external inductor and capacitor values are compatible with the 1.2 MHz switching frequency. Verify that the load current requirements do not exceed the internal switch capabilities defined in the electrical characteristics table.

Part Context

This part belongs to the S-8333 Series of high-frequency step-up switching regulators. The series is characterized by its ability to operate from very low input voltages, making it suitable for single-cell battery applications. The T8T1G suffix indicates the specific tape and reel packaging format used for automated assembly.

Replacement Considerations

Direct substitutes within the same family include variants with different output voltage codes (e.g., S-8333AACB-T8T1G). Ensure the replacement part maintains the same TSSOP-8 package and functional compatibility regarding pin assignments and control logic.