S-8333ACAC-T8T1G

Overview

The S-8333ACAC-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 1.133 MHz via an external resistor connected to the ROSC pin. It is housed in an 8-TSSOP package with dimensions of 4.40 mm width. The controller includes built-in under-voltage lockout and timer latch short-circuit protection circuits, designed for low-voltage portable systems.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller in a single CMOS chip
• Supports adjustable oscillation frequency up to 1.133 MHz for flexible design
• Includes under-voltage lockout and timer latch short-circuit protection for enhanced reliability

Applications

• Power supply for LCD panels
• Portable electronic systems operating on low voltage
• Step-up DC-DC converter designs requiring high-frequency operation

Procurement Notes

Verify the specific suffix T8T1G corresponds to the 8-TSSOP reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required maximum duty ratio settings for the target application circuit design.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for boost applications. Choose based on the need for externally adjustable switching frequency to optimize inductor size. Consider the fixed maximum duty ratio characteristics inherent to this series model compared to other variants in the family.

Part Context

This part belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. It shares architectural similarities with the S-8337 and S-8338 series but differs in specific control parameters and feature sets. The series is designed for efficient power management in compact portable devices requiring stable step-up regulation.

Replacement Considerations

Direct substitutes include S-8333ABFC-T8T1G and S-8333AADB-T8T1G from the same manufacturer. Verify pin compatibility and electrical parameter alignment before substitution.