S-8337ABAB-P8T1G

Overview

The S-8337ABAB-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series by ABLIC Inc. It operates within a supply voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control. The internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is configurable through an external resistor connected to the RDuty pin. Phase compensation and gain are adjusted using components on the CC pin. The device includes under-voltage lockout and timer latch short-circuit protection, housed in an 8-SON package.

Feature Summary

• Configurable PWM maximum duty ratio via external resistor
• Adjustable internal oscillation frequency up to 1.133 MHz
• Integrated under-voltage lockout and short-circuit protection

Applications

• Power supply for LCD modules
• Portable systems operating on low voltage

Procurement Notes

Verify the specific suffix P8T1G against official documentation to confirm the tape and reel packaging configuration. Ensure the ABAB code aligns with the required electrical parameters for your design. Cross-reference the datasheet revision to confirm current manufacturing status and any recent material changes.

Selection Notes

Select this component when designing boost converters requiring flexible duty cycle settings. The adjustable frequency allows optimization for efficiency or component size. Verify that the external passive components match the phase compensation requirements specified in the application circuit guidelines.

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-adjustable maximum duty ratios, whereas the S-8338 fixes this parameter. Both share the same core architecture and low-voltage operation capabilities.

Replacement Considerations

S-8337AAEB-P8T1G and S-8337ACAA-P8T1G are documented members of the same family with identical 8-SON packaging and functional topology.