S-8333AAEB-T8T1G

Overview

The S-8333AAEB-T8T1G is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates within a supply voltage range of 1.8 V to 6 V and utilizes PWM control with an internal oscillation frequency up to 1.2 MHz. The device features a minimum operating voltage of 1.8 V, making it suitable for low-voltage portable systems. It includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. The component is housed in an 8-TSSOP package.

Feature Summary

• Integrates reference voltage circuit, oscillator, error amplifier, and PWM controller
• Includes under-voltage lockout and timer latch short-circuit protection
• Supports external adjustment of maximum duty ratio via resistor connection

Applications

• Power supply for LCD modules
• Portable electronic systems operating on low voltage
• Step-up DC-DC conversion in battery-powered devices

Procurement Notes

Verify the specific output voltage setting associated with the AAEB suffix against the official datasheet before procurement. Confirm that the T8T1G designation corresponds to the required 8-TSSOP packaging and reel quantity specifications. Ensure compatibility with the target system's input voltage range and thermal requirements.

Selection Notes

Select this component when a high-frequency step-up controller with adjustable duty cycle is required. The S-8333 series allows customization of the oscillation frequency and maximum duty ratio through external resistors. Consider the 1.8 V minimum operating voltage for applications requiring efficient power management from single-cell lithium batteries or similar low-voltage sources.

Part Context

The S-8333AAEB-T8T1G belongs to the S-8333 Series of high-frequency PWM control switching regulators. This family is designed for compact power solutions in portable electronics. The series distinguishes itself by allowing users to set the maximum duty ratio externally, providing flexibility in boost converter design compared to fixed-duty variants.

Replacement Considerations

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