S-8337ACEB-T8T1G

Overview

The S-8337ACEB-T8T1G 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 internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is configurable through an external resistor connected to the RDuty pin. Phase compensation and gain are adjusted using components on the CC pin. The device is housed in an 8-TSSOP package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, PWM controller, UVLO, and short-circuit protection.
• Supports low-voltage operation starting at 1.8 V for portable systems.
• Allows flexible configuration of switching frequency and maximum duty ratio via external resistors.

Applications

• Power supply for LCD panels
• Portable electronic systems operating on low voltage

Procurement Notes

Verify the specific suffix 'EB' against the official datasheet to confirm the exact output voltage setting or enable logic configuration, as these parameters vary across the S-8337 family. Ensure compatibility with the required switching frequency and duty ratio settings defined by the external resistor network before finalizing procurement.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.133 MHz and precise duty cycle control. It is suitable for applications needing a wide input voltage range down to 1.8 V. Consider the TSSOP-8 package constraints and thermal requirements for the specific PCB layout.

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, featuring CMOS technology for efficiency. The S-8337 variant specifically allows user-defined maximum duty ratios, distinguishing it from the fixed-duty S-8338 series.

Replacement Considerations

S-8337AAEB-T8T1G, S-8337ABEC-T8T1G, S-8337ACDC-T8T1G, S-8337ACHB-T8T1G, S-8337AAHA-T8T1G, S-8337ACCC-T8T1G, S-8337AAHB-T8T1G