S-8338ACBA-P8T1G

Overview

The S-8338ACBA-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and supports a maximum internal oscillation frequency of 1.133 MHz via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control with a fixed maximum duty ratio of 88%. It features under-voltage lockout (UVLO) and a timer latch short-circuit protection circuit, housed in an 8-pin SON package.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced operational safety
• Supports adjustable oscillation frequency up to 1.133 MHz using external components
• Maintains high reference voltage accuracy of ±1.5% at 1.0 V

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm the 8-SON package type and tape-and-reel packaging configuration. Ensure compatibility with the required operating temperature range of -40°C to 85°C. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing boost converters requiring a wide input voltage range starting from 1.8 V. The fixed 88% duty ratio distinguishes it from the S-8337 series, which allows variable duty control. Use external resistors and capacitors to set the switching frequency and phase compensation for optimal transient response stability.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers manufactured by ABLIC Inc. The series is designed for portable applications due to its low minimum operating voltage. The S-8338 variant specifically provides a fixed maximum duty ratio, simplifying design requirements compared to variable duty counterparts.

Replacement Considerations

S-8338ABAA-P8T1G: Same series, different package or suffix variation.