S-8337AADC-P8T1G

Overview

The S-8337AADC-P8T1G is a CMOS step-up switching regulator controller from the ABLIC S-8337 series. It operates with an input voltage range of 1.8 V to 6 V and features a maximum switching frequency of 1133 kHz. The device utilizes pulse width modulation (PWM) control in a voltage-mode configuration. Packaged in an 8-pin SON format, it supports a nominal input voltage of 3.3 V and functions within a temperature range of -40 °C to 85 °C.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, PWM controller, UVLO, and short-circuit protection.
• Enables internal oscillation frequency adjustment up to 1.133 MHz via an external resistor on the ROSC pin.
• Allows maximum duty ratio control through an external resistor connected to the RDuty pin.

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against official ABLIC documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 8-pin SON package. Confirm RoHS compliance status and check for any product change notifications or obsolescence notices prior to final procurement decisions.

Selection Notes

Select this component when designing boost converter circuits requiring high-frequency operation up to 1.133 MHz. It is suitable for applications needing adjustable duty ratios via external resistors. Consider the 1.8 V minimum operating voltage for low-voltage portable designs. Verify that the required switching frequency and duty cycle ranges align with the external component capabilities.

Part Context

This part belongs to the S-8337/8338 Series of high-frequency PWM control switching regulator controllers. The series is designed for step-up applications, offering flexibility in frequency and duty ratio settings. The S-8337 variant specifically allows user-defined maximum duty ratios, distinguishing it from fixed-duty counterparts like the S-8338 series.

Replacement Considerations

S-8337AAHA-T8T1G, S-8337ACDC-T8T1G, S-8337AAGB-T8T1G, S-8337ABEC-T8T1G, S-8338ABEC-T8T1G, S-8338ABGB-T8T1