S-8333ABIC-T8T1G

Overview

The S-8333ABIC-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 with a fixed internal oscillation frequency of 1.2 MHz. The device is housed in an 8-pin TSSOP package and includes built-in under-voltage lockout and short-circuit protection circuits.

Feature Summary

• Integrates PWM control logic with high-frequency operation for compact external component sizing
• Features low minimum operating voltage suitable for single-cell battery applications
• Includes internal timer latch short-circuit protection for enhanced system reliability

Applications

• Power supply units for portable electronic devices
• LCD backlight driver circuits
• Low voltage battery-powered systems

Procurement Notes

Verify the specific output voltage configuration associated with the ABIC suffix against the official datasheet before procurement, as this designation determines the fixed regulation level. Confirm that the TSSOP-8 package dimensions align with your PCB footprint requirements. Ensure compatibility with the required external inductor and capacitor values specified in the application circuit diagrams.

Selection Notes

Select this component when a fixed boost voltage is required from a low-voltage source without the need for external feedback resistors. It is appropriate for designs prioritizing simplicity and reduced bill-of-materials count over adjustable output ranges. Consider the 1.2 MHz switching frequency for trade-offs between efficiency and passive component size.

Part Context

This part belongs to the S-8333 series of step-up switching regulators. The series is characterized by its ability to operate at low input voltages while providing stable regulated outputs. The ABIC variant specifically denotes a fixed output voltage configuration, distinguishing it from adjustable or other fixed-voltage variants within the same family.

Replacement Considerations

Direct replacements include other S-8333 variants with matching fixed output voltages and TSSOP-8 packaging, such as S-8333ABCB-T8T1G or S-8333ABCC-T8T1G, provided their specific output levels match the design requirements.