S-8338ABCA-P8T1G

Overview

The S-8338ABCA-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 switching frequency of 1.134 MHz, adjustable via an external resistor on the ROSC pin. The device features a fixed maximum duty ratio of 88.5% and utilizes pulse width modulation (PWM) control. It includes under-voltage lockout (UVLO), timer latch short-circuit protection with adjustable delay, and phase compensation capabilities. The component is housed in an 8-SON package measuring 2.9 x 2.8 mm and functions across a temperature range of -40°C to 85°C.

Feature Summary

• Integrates UVLO and timer latch short-circuit protection for enhanced system reliability
• Supports high-frequency operation up to 1.134 MHz for compact passive design
• Allows adjustment of phase compensation and gain via external components

Applications

• Power supply circuits for LCD panels
• Portable electronic systems operating at low voltages
• Step-up DC-DC converter designs requiring high efficiency

Procurement Notes

Verify the specific suffix 'P8T1G' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Cross-reference the internal marking code to distinguish between different output voltage settings or tolerance grades within the S-8338 family.

Selection Notes

Select this component when a fixed duty cycle is acceptable, as it differs from the S-8337 series which allows variable duty ratio control. Consider the 1.8 V minimum operating voltage for battery-powered applications. Evaluate the need for external phase compensation components to optimize transient response for your specific load conditions.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. While sharing core architecture with the S-8337 series, the S-8338 variant distinguishes itself by fixing the maximum duty ratio at approximately 88%, simplifying external circuit design compared to the adjustable duty cycle options available in the sibling series.

Replacement Considerations

The S-8337AADC-P8T1G serves as a functional alternative within the same series, offering similar electrical characteristics but with a variable maximum duty ratio controlled by an external resistor rather than a fixed value.