S-8337ACIB-T8T1G

Overview

The S-8337ACIB-T8T1G 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-TSSOP package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient power management
• 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 displays
• Portable electronic systems operating on low voltage
• Step-up DC-DC converter designs requiring high-frequency operation

Procurement Notes

Verify the specific suffix ACIB against the official datasheet to confirm output configuration and pin compatibility. Confirm RoHS compliance status through current manufacturer documentation. Ensure ordering quantities align with standard reel packaging requirements specified by ABLIC Inc. for this part number.

Selection Notes

Select this controller when designing boost converters requiring adjustable switching frequencies up to 1.2 MHz. Consider its low minimum operating voltage for battery-powered applications. Evaluate external component values for ROSC and RDuty pins to tailor frequency and duty cycle characteristics to specific circuit requirements.

Part Context

This component belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The series is designed for CMOS technology to provide efficient step-up regulation. The S-8337 variant allows user-adjustable maximum duty ratios, distinguishing it from fixed-duty variants in the broader family.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.