S-8333ACBB-T8T1G

Overview

The S-8333ACBB-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 1.2 MHz via an external resistor. It provides short-circuit protection through a timer latch mechanism and includes an under-voltage lockout circuit. The component is housed in an 8-pin TSSOP package and supports surface-mount installation.

Feature Summary

• Integrates PWM control with adjustable oscillation frequency for efficient step-up conversion
• Includes built-in timer latch short-circuit protection and under-voltage lockout circuits
• Operates from low supply voltages starting at 1.8 V, suitable for portable applications

Applications

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

Procurement Notes

Verify the specific output voltage configuration associated with the ACBB suffix against the official datasheet before procurement. Confirm RoHS compliance status and ensure the TSSOP-8 footprint matches the design layout. Check current availability as this series may be subject to special order requirements or obsolescence notices.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for battery-powered devices. Ensure the application can accommodate the external resistor needed to set the switching frequency. Verify that the load current requirements are met by the external MOSFET selection, as this IC functions as a controller rather than a complete power stage.

Part Context

This part belongs to the S-8333 series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring compact power solutions with low standby currents. The ACBB variant specifies a particular fixed output voltage setting within the broader family of configurable regulators.

Replacement Considerations

Direct substitutes include other S-8333 variants such as S-8333ABCC-T8T1G or S-8333AACB-T8T1G, provided the output voltage settings match the design requirements. Cross-reference pinouts and electrical characteristics carefully.