S-8337AAEC-P8T1G

Overview

The S-8337AAEC-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. Maximum duty ratio adjustment is available through the RDuty pin. It includes under-voltage lockout and timer latch short-circuit protection circuits, housed in an 8-SON package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation
• Supports low-voltage operation starting at 1.8 V suitable for portable systems
• Includes under-voltage lockout and timer latch short-circuit protection mechanisms

Applications

• Power supply for LCD modules
• Portable electronic systems operating on low voltage
• Battery-powered devices requiring step-up conversion

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm the 8-SON package type and reel packaging details. Ensure compatibility with the required oscillation frequency setting resistor and duty cycle adjustment components. Confirm RoHS compliance status through manufacturer documentation before procurement.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation up to 1.2 MHz with adjustable duty cycles. Consider the 1.8 V minimum operating voltage for low-power applications. Verify that the external component values for the ROSC and RDuty pins align with the desired switching frequency and maximum duty ratio specifications.

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 for adjustable maximum duty ratios, distinguishing it from the fixed-duty S-8338 series. Both share similar internal architectures including UVLO and short-circuit protection.

Replacement Considerations

S-8337ABEC-T8T1G shares the same series functionality and package type.