S-8333ACIA-T8T1G

Overview

The S-8333ACIA-T8T1G is a CMOS step-up switching regulator controller from the S-8333 series 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 setting capability up to 1.08 MHz, configurable via external components. It is housed in an 8-TSSOP package with dimensions of 4.40 mm width. The controller includes built-in protection circuits such as under-voltage lockout and short-circuit protection, ensuring stable operation in low-voltage portable applications.

Feature Summary

• Integrates PWM control with adjustable oscillation frequency for flexible power management
• Includes under-voltage lockout and timer latch short-circuit protection circuits
• Supports low-voltage operation starting at 1.8 V for battery-powered systems

Applications

• Power supply for LCD panels
• Portable electronic systems operating on low voltage
• Step-up DC-DC converter controllers

Procurement Notes

Verify the specific suffix T8T1G corresponds to the 8-TSSOP reel packaging configuration. Confirm RoHS compliance status through official ABLIC documentation prior to ordering. Ensure design compatibility with the specified 1.8 V minimum operating voltage and PWM control requirements for the target application.

Selection Notes

Select this component when a low-input voltage step-up controller with adjustable frequency is required. Compare against S-8337 or S-8338 series variants if fixed duty cycle or different pin configurations are needed. Verify that the 8-TSSOP package fits the PCB layout constraints and thermal requirements of the design.

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 feature sets like maximum duty ratio control. The series is designed for efficiency in portable devices requiring compact power solutions.

Replacement Considerations

Direct substitutes include other parts from the S-8333 series with compatible pinouts. Cross-reference with S-8337 or S-8338 models only if functional differences in duty cycle control are acceptable. Verify electrical parameters match before substitution.