S-8337AACA-P8T1G

Overview

The S-8337AACA-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. It includes under-voltage lockout and timer latch short-circuit protection circuits. The component is housed in an 8-SON package measuring 2.9 x 2.8 mm.

Feature Summary

• Supports high-frequency PWM operation with adjustable oscillation settings
• Enables duty ratio control through external resistance connections
• Integrates comprehensive protection mechanisms including UVLO and short-circuit detection

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against official documentation to confirm the tape and reel packaging configuration. Ensure compatibility with the required operating temperature range and validate that the selected variant meets all design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing boost converter circuits requiring low minimum operating voltages. Consider the flexibility of setting the maximum duty ratio via external resistors compared to fixed-duty alternatives. Evaluate the need for phase compensation adjustments using external capacitors to ensure stability.

Part Context

This part belongs to the S-8337/8338 series of high-frequency step-up switching regulators. The S-8337 series specifically allows for user-defined maximum duty ratios, distinguishing it from the S-8338 series which has a fixed maximum duty ratio. Both series share similar core architectures and protection features.

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.