S-8338ABDC-P8T1G

Overview

The S-8338ABDC-P8T1G is a CMOS step-up switching regulator controller from the S-8337/8338 series, manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and supports a maximum oscillation frequency of 1.133 MHz via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control with a voltage-mode architecture. It features a timer latch short-circuit protection circuit and under-voltage lockout (UVLO). The component is housed in an 8-pin SON package measuring 2.9 x 2.8 mm and is rated for operation between -40°C and 85°C.

Feature Summary

• Integrates a reference voltage circuit, oscillator, error amplifier, PWM controller, UVLO, and timer latch short-circuit protection.
• Supports internal oscillation frequencies up to 1.133 MHz through external resistor configuration.
• Enables low-voltage operation starting at 1.8 V, suitable for portable systems.

Applications

• Power supply circuits 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 manufacturer's official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure the ordering information matches the current revision level to avoid discrepancies in pinout or electrical characteristics. Cross-reference the part number with authorized distributors to confirm availability and compliance with RoHS standards.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.133 MHz to minimize passive component size. It is appropriate for applications needing a minimum operating voltage of 1.8 V. Consider the 8-SON package dimensions if board space is constrained. Verify that the required duty cycle and output current capabilities align with the specific system requirements documented in the electrical characteristics section.

Part Context

This part belongs to the S-8337/8338 series of CMOS step-up switching regulators. The series is designed for low-voltage applications, offering integrated protection features like short-circuit detection. The S-8338 variant specifically allows for adjustable maximum duty ratios via external resistors, distinguishing it from fixed-duty counterparts within the same family.

Replacement Considerations

The S-8337AADC-P8T1G is a related member of the same series but may differ in duty ratio control configurations. Verify functional equivalence regarding the PWM control mode and package compatibility before substitution. Consult the official datasheet for detailed parameter comparisons to ensure performance alignment.