S-8333ACCB-T8T1G

Overview

The S-8333ACCB-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. Maximum duty ratio is adjustable through an external resistor connected to the RDuty pin. Phase compensation and gain are configured using external components on the CC pin. The unit is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management.
• Supports low-voltage operation starting at 1.8 V, suitable for portable systems.
• Includes under voltage lockout (UVLO) and timer latch short-circuit protection circuits.

Applications

• Power supply for LCD displays
• Portable electronic systems operating on low voltage

Procurement Notes

Verify the specific suffix 'CC' against the official ABLIC datasheet to confirm output configuration and tolerance specifications. Ensure the ordering suffix matches the required electrical characteristics for the target application. Confirm RoHS compliance status and packaging details directly with the manufacturer or authorized distributors prior to procurement.

Selection Notes

Select this component when designing boost converter circuits requiring high-frequency operation up to 1.08 MHz. The adjustable maximum duty ratio allows flexibility in output voltage settings. Consider the 8-TSSOP package dimensions for PCB layout constraints. Verify that the external passive components selected for the ROSC, RDuty, and CC pins align with the desired oscillation frequency and stability requirements.

Part Context

This part belongs to the S-8333 Series of step-up switching regulators. The series is characterized by its CMOS technology and ability to function as a controller for external power switches. It is designed to provide stable power conversion in space-constrained applications where low input voltages are prevalent.

Replacement Considerations

S-8333AACB-T8T1G

FAQ

How is the oscillation frequency determined?

The internal oscillation frequency can be set up to 1.08 MHz by connecting a resistor to the ROSC pin.

What protection features are included?

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