S-8333AACC-T8T1G

Overview

The S-8333AACC-T8T1G is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates within a supply voltage range of 1.8 V to 6 V and utilizes PWM control with an internal oscillation frequency up to 1.2 MHz. The device is housed in an 8-pin TSSOP package and supports external adjustment of the maximum duty ratio via a resistor connected to the RDuty pin. Phase compensation and gain values are adjustable through external components connected to the CC pin, ensuring operation stability and transient response.

Feature Summary

• Integrates reference voltage circuit, oscillator, error amplifier, and PWM controller for efficient power management
• Features low minimum operating voltage suitable for portable systems and LCD power supplies
• Includes under voltage lockout circuit and timer latch short-circuit protection
• Allows external setting of maximum duty ratio and phase compensation for customized performance

Applications

• Power supply for LCD displays
• Portable electronic systems operating on low voltage
• Step-up switching regulator circuits requiring high-frequency operation

Procurement Notes

Verify the specific suffix codes against the official datasheet to ensure correct output configuration and package type. Confirm RoHS compliance status and environmental documentation availability prior to ordering. Check for obsolescence notices or design-in restrictions as some variants may be marked unsuitable for new designs. Ensure compatibility with required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when a low-voltage input step-up controller is required with adjustable frequency and duty cycle capabilities. Consider the TSSOP-8 package constraints for PCB layout and thermal dissipation requirements. Evaluate the need for external compensation components to optimize stability based on the specific inductor and capacitor selection. Verify that the operating temperature range meets the system's environmental demands.

Part Context

This part belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring efficient power conversion from low voltage sources. The specific model indicates a standard configuration within the family, distinguished by its package type and specific electrical characteristics defined by the manufacturer's naming convention.

Replacement Considerations

S-8333ABFC-T8T1G

FAQ

How is the maximum duty ratio controlled in the S-8333AACC-T8T1G?

The maximum duty ratio is controlled by connecting a resistor to the RDuty pin.

What protection features are included in the S-8333AACC-T8T1G?

The device includes an under voltage lockout circuit (UVLO) and a timer latch short-circuit protection circuit.