S-8337ACCA-P8T1G

Overview

The S-8337ACCA-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, packaged in an 8-pin SON format.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management
• Features adjustable maximum duty ratio controlled by external resistance connected to the RDuty pin
• Includes under-voltage lockout circuitry and timer latch short-circuit protection mechanisms

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with required input voltage ranges and thermal performance constraints before integration. Cross-reference manufacturer documentation for any recent product change notifications or material composition updates.

Selection Notes

Select this component when designing boost converter applications requiring high-frequency operation up to 1.133 MHz. It is suitable for systems needing adjustable duty ratios and robust protection features like UVLO and short-circuit detection. Consider the 8-pin SON package for compact board layouts.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for low-voltage portable applications, offering flexibility in setting oscillation frequencies and duty cycles through external components while maintaining stability and transient response capabilities.

Replacement Considerations

S-8337ACHB-T8T1G shares similar series characteristics but differs in packaging; verify pinout and electrical parameters against the original design requirements before substitution.