S-8333ABDC-T8T1G

Overview

The S-8333ABDC-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 1.08 MHz via the ROSC pin. It incorporates under-voltage lockout (UVLO), timer latch short-circuit protection, and soft-start functions. The component is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage circuit, oscillator, error amplifier, and PWM controller
• Includes under-voltage lockout and timer latch short-circuit protection circuits
• Features adjustable maximum duty ratio via external resistor connection

Applications

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

Procurement Notes

Verify the specific suffix 'ABDC' against official ABLIC documentation to confirm output configuration and factory settings. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as availability may vary. Ensure the ordering information matches the exact part number variant required for the design.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for step-up applications. Consider the adjustable oscillation frequency up to 1.08 MHz for optimizing external component size. Evaluate the need for programmable maximum duty ratio and integrated protection features such as UVLO and short-circuit protection for system reliability.

Part Context

This component belongs to the S-8333 Series of CMOS step-up switching regulators. The series is designed for portable electronic devices requiring efficient power management from low-voltage sources. It shares common architectural features with other variants in the family, differing primarily in specific electrical parameters and output configurations defined by the suffix codes.

Replacement Considerations

Compatible alternatives within the same series include S-8333AACB-T8T1G, S-8333AADB-T8T1G, S-8333ABCB-T8T1G, S-8333ABCC-T8T1G, and S-8333ABFC-T8T1G. Verify that the substitute part number matches the required input voltage range, package type, and specific functional suffix before implementation.