S-8337ACGC-P8T1G

Overview

The S-8337ACGC-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 supports a maximum oscillation frequency of 1.133 MHz via an external resistor on the ROSC pin. The device utilizes pulse width modulation (PWM) control with a maximum duty ratio adjustable through the RDuty pin. It features under-voltage lockout and timer latch short-circuit protection circuits. The component is 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 built-in under-voltage lockout and short-circuit protection mechanisms.

Applications

• Power supply for LCD modules
• Portable electronic devices requiring low-voltage operation
• General-purpose step-up DC-DC converter controllers

Procurement Notes

Verify the specific suffix P8T1G against official ABLIC documentation to confirm the exact package type and reel quantity specifications. Ensure compatibility with required operating temperature ranges and check for any recent product change notifications or end-of-life notices before finalizing procurement plans.

Selection Notes

Select this controller when designing boost converters requiring adjustable switching frequencies up to 1.2 MHz and customizable duty cycles. Consider the 1.8 V minimum operating voltage for battery-powered applications. Evaluate external component requirements for phase compensation and frequency setting based on the target output voltage and load conditions.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically allows for user-adjustable maximum duty ratios, distinguishing it from the fixed-duty S-8338 series. Both series share common internal architectures including UVLO and short-circuit protection, designed for compact power management solutions.

Replacement Considerations

Direct substitutes include other members of the S-8337 series such as S-8337AAGB-T8T1G or S-8337ACFA-P8T1G, provided the package and electrical parameters match the design requirements. Verify functional equivalence regarding duty cycle adjustability and operating voltage ranges.