S-8333ACFC-T8T1G

Overview

The S-8333ACFC-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 supports a switching frequency between 280 kHz and 1.08 MHz. The device features a maximum duty cycle of 89% and utilizes pulse width modulation (PWM) control. Packaged in an 8-TSSOP surface-mount case, it integrates reference voltage, oscillator, error amplifier, and UVLO circuits for portable low-voltage applications.

Feature Summary

• Integrates under voltage lockout and timer latch short-circuit protection circuits
• Supports adjustable internal oscillation frequency via external resistor
• Provides PWM control with configurable maximum duty ratio

Applications

• Power supply for LCD modules
• Portable systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix T8T1G corresponds to the 8-TSSOP package and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or certified distributor declarations prior to procurement. Ensure the component meets environmental standards required for the target assembly process.

Selection Notes

Select this controller when designing boost converters requiring operation from inputs as low as 1.8 V. The adjustable frequency range up to 1.08 MHz allows optimization for external component size versus efficiency. Verify that the 89% maximum duty cycle aligns with the required output voltage gain relative to the minimum input voltage.

Part Context

This component belongs to the S-8333 series of high-frequency PWM control switching regulator controllers. The series is designed for CMOS technology to minimize power consumption in battery-operated devices. It serves as a core control element for external power switches in step-up topologies.

Replacement Considerations

The S-8337ABEC-T8T1G and S-8338ABEC-T8T1G are related series components from the same manufacturer. Substitution requires verification of pin compatibility and functional equivalence regarding duty cycle limits and frequency adjustment methods.