S-8338ABIB-P8T1G

Overview

The S-8338ABIB-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates with 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. The device utilizes pulse width modulation (PWM) control and features a maximum duty ratio of 88.5%. It includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits, functioning within a temperature range of -40°C to 85°C in an 8-SON package.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced operational safety
• Supports high-frequency PWM operation up to 1.133 MHz for compact passive component design
• Enables low-voltage system power supply with a minimum operating voltage of 1.8 V

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against the official datasheet to confirm the 8-SON(A) package type and reel packaging configuration. Ensure compatibility with the required switching frequency setting resistor and check for any product change notifications regarding material composition or manufacturing location updates prior to finalizing procurement orders.

Selection Notes

Select this component when designing boost converters that require operation from low input voltages down to 1.8 V. The fixed maximum duty cycle of 88.5% distinguishes it from adjustable variants. Verify that the application environment remains within the specified -40°C to 85°C ambient temperature range and that the 8-SON footprint aligns with the PCB layout constraints.

Part Context

This part belongs to the S-8337/8338 Series of high-frequency PWM control switching regulator controllers. The S-8338 variant specifically offers a fixed maximum duty ratio, differing from the S-8337 series which allows duty ratio adjustment via an external resistor. Both series share similar core architectures including reference voltage circuits, error amplifiers, and oscillator blocks.

Replacement Considerations

S-8338AADB-P8T1G and S-8338ABEA-P8T1G are confirmed substitutes within the same series offering identical boost controller functionality and pin configurations.