S-8337ACBC-P8T1G

Overview

The S-8337ACBC-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-pin SON package.

Feature Summary

• Integrates under-voltage lockout and timer latch short-circuit protection circuits for enhanced system reliability.
• Allows adjustable maximum duty ratio through an external resistor connected to the RDuty pin.
• Enables phase compensation and gain adjustment via external components connected to the CC pin.

Applications

• Power supply units for LCD displays
• Portable electronic systems operating on low voltage sources

Procurement Notes

Verify the specific suffix P8T1G against official documentation to confirm the exact package type and reel specifications. Ensure compatibility with the required operating temperature range and input voltage parameters before integration into the design.

Selection Notes

Select this component when designing boost converters requiring high-frequency operation and adjustable duty cycles. Consider the need for external resistors to set oscillation frequency and duty ratio, as well as capacitors for phase compensation, to optimize transient response and stability.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8337 variant specifically offers user-configurable maximum duty ratios, distinguishing it from the fixed-duty S-8338 series, while sharing similar core architecture and low-voltage capabilities.

Replacement Considerations

The S-8338ABEC-T8T1G serves as a functional alternative within the same series, though it features a fixed maximum duty ratio rather than the adjustable configuration found in the S-8337 series.