S-8338AABC-T8T1G

Overview

The S-8338AABC-T8T1G is a CMOS step-up switching regulator controller from the S-8338 series 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 internal oscillation frequency is adjustable up to 1.133 MHz via an external resistor on the ROSC pin. The maximum duty ratio is fixed at 88%. Phase compensation is configurable through external components connected to the CC pin. The device includes under-voltage lockout and timer latch short-circuit protection circuits, packaged in an 8-TSSOP format.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation.
• Features low minimum operating voltage suitable for portable systems and LCD power supplies.
• Includes built-in under-voltage lockout and timer latch short-circuit protection mechanisms.

Applications

• Power supply for LCD panels
• Portable electronic systems requiring low voltage operation
• General purpose DC-DC step-up converter designs

Procurement Notes

Verify the specific suffix codes against the official ABLIC datasheet to ensure correct package type and environmental compliance status. Confirm that the ordering information matches the required electrical parameters and pin configuration before finalizing procurement orders.

Selection Notes

Select this component when a fixed maximum duty ratio of 88% is acceptable for the boost application. Choose based on the need for adjustable switching frequency up to 1.2 MHz and the requirement for low input voltage operation starting at 1.8 V.

Part Context

This part belongs to the S-8337/8338 Series of high-frequency PWM control switching regulator controllers. The S-8338 variant specifically features a fixed maximum duty ratio, distinguishing it from the S-8337 series which allows duty ratio adjustment via an external resistor.

Replacement Considerations

S-8338ABEC-T8T1G