S-8333ACIB-T8T1G

Overview

The S-8333ACIB-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 setting capability up to 1.133 MHz via an external resistor. It provides short-circuit protection through a timer latch circuit and includes under-voltage lockout functionality. The component is housed in an 8-TSSOP package.

Feature Summary

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

Applications

• Power supply units for LCD panels
• Portable electronic systems requiring low voltage operation
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix T8T1G corresponds to the tape and reel packaging configuration. Confirm RoHS compliance status as detailed in the official datasheet. Ensure the component meets automotive or industrial temperature requirements if applicable, noting the specified operating range. Cross-reference the manufacturer part number with current availability channels.

Selection Notes

Select this controller when designing boost converters requiring high-frequency operation up to 1.2 MHz. It is suitable for applications needing precise duty cycle control via external resistors. Consider its low minimum operating voltage for battery-powered devices. Evaluate the need for external phase compensation components connected to the CC pin for stability.

Part Context

This component belongs to the S-8333 series of high-frequency PWM control switching regulators. It shares architectural similarities with the S-8337 and S-8338 series, which also feature 1.2 MHz operation and similar protection circuits. The series is designed for compact power management solutions in portable electronics.

Replacement Considerations

The S-8333AADB-T8T1G and S-8333ABFC-T8T1G are documented members of the same S-8333 series family. Verify functional equivalence regarding maximum duty ratio settings and oscillator frequency ranges before substitution.