S-8338ACFA-P8T1G

Overview

The S-8338ACFA-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates with a minimum input voltage of 1.8 V and supports an internal oscillation frequency up to 1.133 MHz, adjustable via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control and features a timer latch short-circuit protection circuit. It is housed in an 8-pin TSSOP package and is designed for low-voltage portable systems.

Feature Summary

• Integrates a reference voltage circuit, oscillator, error amplifier, and PWM controller within a single CMOS chip.
• Includes an under voltage lockout circuit (UVLO) to ensure stable operation during power transitions.
• Features a timer latch short-circuit protection circuit to prevent damage during fault conditions.

Applications

• Power supply for LCD displays
• Portable electronic systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix 'P8T1G' against the official ABLIC datasheet to confirm the package type and tape-and-reel specifications. Ensure that the required output voltage configuration matches the part's fixed or adjustable settings as defined in the product documentation. Cross-reference the RoHS compliance status with current environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for step-up applications. Consider the adjustable internal oscillation frequency capability for optimizing external component size. Verify that the TSSOP-8 package fits the PCB layout constraints and that the PWM control mode aligns with the system's noise and efficiency requirements.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant specifically focuses on step-up topology with integrated protection circuits. It is distinct from linear regulators like the S-13R1 series and supervisor ICs like the S-809xx series, serving primarily as a controller for boost converters in portable electronics.

Replacement Considerations

S-8338ABEA-P8T1G

FAQ

How is the internal oscillation frequency adjusted?

The internal oscillation frequency can be set up to 1.133 MHz by connecting a resistor to the ROSC pin.

What protection circuits are included?

The device includes an under voltage lockout circuit (UVLO) and a timer latch short-circuit protection circuit.