S-8333CBAC-I8T1G

Overview

The S-8333CBAC-I8T1G 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 maximum frequency of 1.188 MHz, set via an external resistor on the ROSC pin. It is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management.
• Includes under-voltage lockout and timer latch short-circuit protection circuits.
• Supports adjustable maximum duty ratio through an external resistor connected to the RDuty pin.

Applications

• Power supply for LCD modules
• Portable systems operating on low voltage

Procurement Notes

Verify the specific suffix I8T1G against the manufacturer's current datasheet to confirm pinout and electrical characteristics. Ensure the ordering quantity aligns with the factory reel packaging requirements specified by ABLIC Inc. for this component series.

Selection Notes

Select this controller when designing boost converters requiring operation from a minimum 1.8 V source. The adjustable oscillation frequency allows optimization for external component size, while the integrated protection features enhance system reliability in portable applications.

Part Context

This component belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. The series is designed for low-voltage applications, offering flexibility in setting oscillation frequencies and duty ratios to suit various power supply designs.

Replacement Considerations

The S-8333CBEC-T8T1G is a confirmed substitute within the same series. Verify that the specific suffix variations do not alter the functional parameters required for the target application before substitution.