S-8338AACB-P8T1G

Overview

The S-8338AACB-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 oscillation frequency of 1.133 MHz via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control with a fixed maximum duty ratio of 88%. It features a reference voltage accuracy of ±1.5% at 1.0 V and includes under-voltage lockout (UVLO) and timer latch short-circuit protection. The component is housed in an 8-SON package.

Feature Summary

• Integrates PWM control with a fixed maximum duty ratio for simplified application design
• Supports high-frequency operation up to 1.133 MHz to minimize external component size
• Includes built-in under-voltage lockout and short-circuit protection circuits

Applications

• Power supply units for LCD panels
• Portable electronic systems operating on low voltage
• Battery-powered devices requiring efficient step-up conversion

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) package configuration. Confirm RoHS compliance status through official documentation, as some variants may differ. Ensure the ordering quantity aligns with manufacturer standard packaging requirements. Cross-reference the full part number against the latest datasheet revision to confirm availability and design recommendations.

Selection Notes

Select this component when a fixed duty ratio is acceptable for the target output voltage. The S-8338 series differs from the S-8337 series by fixing the maximum duty ratio rather than allowing external adjustment. Verify that the required switching frequency can be achieved with available external resistors. Ensure the load current requirements are met by the internal driver capabilities.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant specifically provides a fixed maximum duty ratio, distinguishing it from the adjustable duty cycle options found in the S-8337 series. Both series share similar core architectures including UVLO and short-circuit protection mechanisms.

Replacement Considerations

S-8338ABEA-P8T1G: Verified alternative within the same series offering identical functional specifications and package type.