S-8337ABAA-P8T1G

Overview

The S-8337ABAA-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series by ABLIC Inc. It operates with a supply voltage range of 1.8V to 6V and features an internal oscillator frequency adjustable up to 1.134MHz via an external resistor. The device utilizes PWM control with a maximum duty ratio configurable through an external resistor connected to the RDuty pin. Phase compensation and gain are adjustable using external components on the CC pin. It includes under-voltage lockout and timer latch short-circuit protection, housed in an 8-SON package.

Feature Summary

• Configurable maximum duty ratio via external resistor
• Adjustable oscillation frequency up to 1.134MHz
• Integrated under-voltage lockout and short-circuit protection

Applications

• Power supply for LCD modules
• Portable systems operating on low voltage
• Step-up DC-DC converter controllers

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON(A) package configuration as documented in official datasheets. Confirm RoHS compliance status and REACH restrictions against current manufacturer environmental statements before integration. Ensure ordering quantities align with standard reel packaging requirements specified by the manufacturer.

Selection Notes

Select this component when designing boost converters requiring low minimum operating voltage down to 1.8V. The adjustable frequency and duty ratio allow optimization for specific efficiency and size constraints. Verify that external passive component values support the required phase compensation and stability margins for the target load conditions.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant distinguishes itself from the S-8338 by offering user-configurable maximum duty ratios rather than fixed limits. The series is designed for applications demanding compact power solutions with flexible timing parameters.

Replacement Considerations

Direct substitutes within the same family include other S-8337 variants with different output voltage settings or packages, such as S-8337ACAA-P8T1G. Cross-model replacement with S-8338 series parts requires verifying duty ratio compatibility since S-8338 has fixed maximum duty ratios.