S-8338AAEB-P8T1G

Overview

The S-8338AAEB-P8T1G is a CMOS step-up switching regulator controller from the S-8338 series by ABLIC Inc. It operates with a supply voltage range of 1.8V to 6V and features a switchable internal oscillation frequency between 257.4kHz and 1.134MHz. The device utilizes pulse width modulation (PWM) control with a maximum duty cycle of 88.5%. It provides positive output configuration in an 8-SMD, flat lead package (8-SON). Key control characteristics include current limit, enable, and frequency control functions.

Feature Summary

• Integrates PWM control with adjustable internal oscillation frequency for flexible switching regulation
• Includes built-in under voltage lockout and timer latch short-circuit protection circuits
• Supports low minimum operating voltage suitable for portable systems

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 official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with the required switching frequency settings via the ROSC pin resistor. Confirm that the 8-SON package dimensions align with the target PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a low input voltage start capability down to 1.8V is required for boost applications. Consider the 88.5% maximum duty cycle limitation for high step-up ratio requirements. Evaluate the need for external frequency setting resistors to achieve the desired switching speed within the specified range.

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 wider frequency adjustment range compared to the S-8337 series. It is designed as a PMIC solution for efficient power management in compact mobile devices.

Replacement Considerations

S-8338AADB-P8T1G and S-8338ACDC-P8T1G are documented variants within the same series offering similar boost control functionality. Verify if alternative suffixes meet the specific packaging or electrical parameter requirements.