S-8337ABDC-P8T1G

Overview

The S-8337ABDC-P8T1G is a CMOS step-up switching regulator controller from the S-8337 series, designed for low-voltage portable systems. 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 (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-SON package measuring 2.9 mm by 2.8 mm.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller within a single CMOS chip.
• Provides programmable internal oscillation frequency up to 1.133 MHz using an external resistor.
• Includes under-voltage lockout and timer latch short-circuit protection for enhanced reliability.

Applications

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

Procurement Notes

Verify the specific suffix P8T1G against the manufacturer's official documentation to confirm the exact package type and reel quantity specifications. Ensure compatibility with the required input voltage range and check for any recent product change notifications regarding material or plating updates before finalizing procurement orders.

Selection Notes

Select this controller when designing boost converter applications requiring high-frequency operation and precise duty cycle adjustment. Consider the external component requirements for setting the oscillation frequency and maximum duty ratio. Verify that the 8-SON package dimensions fit the available PCB space and thermal management constraints.

Part Context

This component belongs to the S-8337/8338 series of step-up switching regulator controllers manufactured by ABLIC Inc. The series is characterized by its ability to operate at low minimum voltages, making it suitable for battery-powered devices. The S-8337 variant specifically allows for user-defined maximum duty ratios, distinguishing it from the fixed-duty S-8338 series.

Replacement Considerations

S-8337ACDC-P8T1G