S-8337ABAB-T8T1G

Overview

The S-8337ABAB-T8T1G 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. Phase compensation and gain are adjusted using components connected to the CC pin. The device is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage circuit, oscillator, error amplifier, PWM controller, UVLO, and timer latch short-circuit protection.
• Supports low-voltage operation with a minimum operating voltage of 1.8 V.
• Allows flexible configuration of switching frequency and maximum duty ratio via external resistors.

Applications

• Power supply for LCD panels
• Portable systems requiring low-voltage operation

Procurement Notes

Verify the specific suffix ABAB against official datasheets to confirm exact electrical characteristics, as variations exist within the S-8337 family. Confirm RoHS compliance status and ensure the TSSOP-8 package matches design requirements. 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 external components for ROSC, RDuty, and CC pins are chosen to meet stability and transient response needs. Verify that the input voltage range aligns with the system's power source 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 applications needing efficient step-up conversion in compact form factors. The S-8337 variant specifically offers adjustable duty ratios, distinguishing it from the fixed-duty S-8338 series.

Replacement Considerations

S-8337AAHA-T8T1G, S-8337AAHB-T8T1G, S-8337ACGB-T8T1G, S-8337ACCC-T8T1G, S-8337ABBA-T8T1G, S-8337ABEC-T8T1G, S-8337AADC-P8T1