S-8337AAAC-P8T1G

Overview

The S-8337AAAC-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 reference voltage, error amplifier, and PWM controller for efficient power management
• Features timer latch short-circuit protection circuit for enhanced safety
• Allows adjustable maximum duty ratio through external resistor connection

Applications

• Power supply for LCD modules
• Portable systems operating on low voltage
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix P8T1G corresponds to the 8-SON package configuration rather than TSSOP variants. Confirm RoHS compliance status as detailed in official documentation. Ensure ordering quantities align with manufacturer reel specifications. Validate that the AAAC suffix matches required electrical tolerances for the target application.

Selection Notes

Select this component when designing boost converters requiring operation down to 1.8 V input. Choose based on the need for externally adjustable oscillation frequency and duty cycle limits. Consider the 8-SON package for compact surface-mount requirements. Verify compatibility with external MOSFETs and passive components for the desired output 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 allows user-defined maximum duty ratios, distinguishing it from the fixed-duty S-8338 series. The family is designed for low-voltage portable applications requiring efficient step-up regulation.

Replacement Considerations

S-8337AAEB-P8T1G shares the same series functionality and package type.