S-8337AADA-P8T1G

Overview

The S-8337AADA-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured 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 connected to the ROSC pin. The maximum duty ratio is configurable through an external resistor on the RDuty pin. The device incorporates under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. It is housed in an 8-pin SON(A) package measuring 2.9 mm x 2.8 mm.

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 panels
• Portable systems operating on low voltage

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm the exact package type and reel configuration. Confirm RoHS compliance status and REACH registration details with the manufacturer before procurement. Ensure the ordering quantity aligns with standard factory packaging requirements.

Selection Notes

Select this component when designing boost converters requiring flexible duty cycle adjustment and high-frequency operation. The S-8337 series allows customization of switching frequency and duty ratio, unlike fixed-ratio alternatives. Verify that the external components match the required phase compensation and gain values for stable transient response.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically offers user-adjustable maximum duty ratios, distinguishing it from the S-8338 series which has a fixed maximum duty ratio. Both share similar core architectures including reference voltage circuits and error amplifiers.

Replacement Considerations

S-8337ABEC-T8T1G and S-8337ACDC-T8T1G are alternative parts within the same series offering similar functionality.