S-8333ABBC-T8T1G

Overview

The S-8333ABBC-T8T1G is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control. The device features an internal oscillator with a maximum frequency of 1.08 MHz, adjustable via the ROSC pin. It includes under-voltage lockout (UVLO), timer latch short-circuit protection, and soft-start functionality. The component is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage circuit, error amplifier, and PWM controller for efficient power management
• Features built-in under-voltage lockout and timer latch short-circuit protection circuits
• Supports external adjustment of oscillation frequency and maximum duty ratio via peripheral resistors

Applications

• Power supply systems for LCD displays
• Portable electronic devices operating on low voltage sources
• General-purpose DC-DC step-up converter designs

Procurement Notes

Verify the specific suffix configuration against the manufacturer's official datasheet to ensure compatibility with required electrical parameters. Confirm that the ordering information matches the exact part number designation, as suffix variations may indicate differences in packaging or specific functional settings defined by the manufacturer.

Selection Notes

Select this component when designing boost converter applications requiring operation from low input voltages down to 1.8 V. Ensure the external inductor and capacitor values are calculated to support the desired output voltage and current requirements while maintaining stability within the specified operating temperature range.

Part Context

This model belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. The series is designed for portable systems and LCD power supplies, offering a compact solution with integrated protection features. It functions as a controller rather than a complete regulator, requiring external power switches and passive components.

Replacement Considerations

Consult the official ABLIC documentation for confirmed substitute part numbers. Cross-reference specifications such as input voltage range, switching frequency limits, and package dimensions to ensure functional equivalence before implementation.