S-8333ABAA-T8T1G

Overview

The S-8333ABAA-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 frequency settable up to 1.08 MHz via an external resistor on the ROSC pin. It provides adjustable maximum duty ratio through the RDuty pin and allows phase compensation adjustment via the CC pin. The component includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits, packaged in an 8-pin TSSOP format.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management
• Features low minimum operating voltage suitable for portable systems
• Includes built-in under-voltage lockout and short-circuit protection mechanisms

Applications

• Power supply for LCD modules
• Portable electronic systems requiring low voltage operation
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix against official datasheets to confirm exact electrical characteristics and package variations. Confirm RoHS compliance status and current manufacturing availability directly with ABLIC or authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.08 MHz. Ensure external components match the required oscillation frequency and duty cycle settings defined by the ROSC and RDuty pins. Verify thermal performance within the specified -40°C to 85°C operating temperature range.

Part Context

This part belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. The series is designed for applications demanding compact solutions with low input voltage capabilities. It serves as a core control element in step-up power conversion architectures.

Replacement Considerations

Consult official substitution lists for compatible parts within the S-8333 family. Verify pin compatibility and electrical specifications before replacing.