S-8337ACFB-T8T1G

Overview

The S-8337ACFB-T8T1G 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, while the maximum duty ratio is configurable through the RDuty pin. The device features under-voltage lockout and timer latch short-circuit protection, housed in an 8-pin TSSOP 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 panels
• Portable systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix against official documentation to confirm exact electrical characteristics, as variations exist within the S-8337 family. Confirm RoHS compliance status and ensure the component meets current environmental regulations for your target market before finalizing procurement orders.

Selection Notes

Select this controller when designing boost converters requiring flexible duty cycle adjustment and high-frequency operation. Ensure external components support the desired switching frequency and that the input voltage remains above the minimum operating threshold of 1.8 V for stable regulation.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring low minimum operating voltages and compact power management solutions in portable electronics.

Replacement Considerations

S-8337ACCC-T8T1G and S-8337AAHB-T8T1G are documented members of the same S-8337 series with identical core functionality and packaging.