S-8337ABDB-P8T1G

Overview

The S-8337ABDB-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes pulse width modulation (PWM) control. The device features an internal oscillator with a frequency settable up to 1.133 MHz via an external resistor on the ROSC pin. It is housed in an 8-SON package.

Feature Summary

• Integrates under-voltage lockout and timer latch short-circuit protection circuits for enhanced system reliability.
• Allows adjustment of maximum PWM duty ratio through an external resistor connected to the RDuty pin.
• Enables phase compensation and gain value tuning using external resistors and capacitors on the CC pin.

Applications

• Power supply systems for LCD displays
• Portable electronic devices operating on low voltages

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and electrical characteristics. Confirm RoHS compliance status and check for any product change notifications or obsolescence notices prior to procurement.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.133 MHz. Ensure the application requires adjustable duty cycle control and supports the specified 1.8 V minimum operating voltage.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically provides user-adjustable maximum duty ratios, distinguishing it from the fixed-duty S-8338 series.

Replacement Considerations

S-8337AAEB-P8T1G and S-8337ACGA-P8T1G are confirmed substitutes within the same series offering identical functional specifications and package types.