S-8337ACCC-P8T1G

Overview

The S-8337ACCC-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 supports an internal oscillation frequency up to 1.133 MHz, adjustable via an external resistor on the ROSC pin. The device utilizes pulse-width modulation (PWM) control with a maximum duty ratio configurable through an external resistor on the RDuty pin. Phase compensation and gain are adjusted using components connected to the CC pin. It features under-voltage lockout (UVLO) and timer latch short-circuit protection. The component is housed in an 8-SON 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
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix P8T1G against official ABLIC documentation to confirm the exact package type and tape-and-reel specifications. Ensure compatibility with the required operating temperature range of -40°C to 85°C. Confirm RoHS compliance status as detailed in the manufacturer's environmental statements before finalizing procurement orders.

Selection Notes

Select this controller when designing boost converters requiring low minimum operating voltage down to 1.8 V. Choose based on the need for externally adjustable switching frequency and duty cycle limits. Consider the 8-SON package size for compact applications. Verify that the external component values for the ROSC, RDuty, and CC pins meet the stability requirements defined in the datasheet.

Part Context

The S-8337ACCC-P8T1G belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. This family is designed for efficient power management in portable electronics. The S-8337 variant specifically allows for flexible configuration of duty ratio and frequency, distinguishing it from fixed-parameter counterparts like the S-8338 series.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.