S-8338ABEA-P8T1G

Overview

The S-8338ABEA-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 1.8V to 6V and supports a switching frequency between 257.4kHz and 1.134MHz. The device features a maximum duty cycle of 88.5% and provides positive output configuration with one output stage. Packaged in an 8-SON (2.9x2.8mm) surface-mount format, it functions as a boost DC-DC switching controller suitable for low-voltage portable systems.

Feature Summary

• Integrates internal oscillator and PWM controller for high-frequency step-up regulation
• Includes timer latch short-circuit protection circuit for enhanced reliability
• Supports external frequency control via resistor connection to ROSC pin
• Features under voltage lockout (UVLO) for stable operation at low input voltages

Applications

• Power supply for LCD panels
• Portable electronic systems operating on low voltage
• Boost DC-DC conversion in battery-powered devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific package variants such as TSSOP-8 or SON(A). Review datasheet revisions for any design changes affecting pin compatibility or electrical characteristics before integration into production designs.

Selection Notes

Select this controller when designing boost converters requiring input voltages as low as 1.8V. Ensure the application benefits from the adjustable switching frequency up to 1.134MHz to optimize inductor size. Verify that the 88.5% maximum duty cycle meets the required output voltage gain for the specific input-output differential in the target circuit design.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for applications demanding efficient power management in compact form factors. The S-8338 variant specifically targets step-up topologies with integrated protection features suitable for modern portable electronics.

Replacement Considerations

S-8338AADB-P8T1G and S-8338ACDC-P8T1G are documented parameter-equivalent alternatives within the same series offering similar boost control functionality.