S-8333AAAA-T8T1G

Overview

The S-8333AAAA-T8T1G is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates with a minimum input voltage of 1.8 V and supports an internal oscillation frequency up to 1.2 MHz via the ROSC pin. The device utilizes pulse width modulation (PWM) control and features a maximum duty ratio of 0.89. It includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-TSSOP package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced system reliability
• Supports high-frequency operation up to 1.2 MHz for compact external component design
• Enables low-voltage startup with a minimum operating voltage of 1.8 V

Applications

• Power supply systems for portable electronic devices
• Voltage regulation for LCD panels
• Low-voltage battery-powered equipment

Procurement Notes

Verify the specific output configuration and fixed output voltage settings associated with the AAAA suffix against the official datasheet before integration. Confirm that the T8T1G designation corresponds to the required 8-TSSOP package and reel packaging specifications. Ensure compatibility with the target application's input voltage range and thermal requirements.

Selection Notes

Select this component when a low-input voltage step-up solution is required for space-constrained designs. The 1.2 MHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Verify that the non-synchronous topology meets the efficiency requirements of the specific load application.

Part Context

This part belongs to the S-8333 series of step-up switching regulator controllers from ABLIC Inc. The series is designed for applications requiring efficient power conversion from low-voltage sources. The S-8333 family provides integrated protection features and flexible frequency setting options suitable for various portable electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.