S-8333AAHA-T8T1G

Overview

The S-8333AAHA-T8T1G is a CMOS step-up switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 1.8 V to 6 V and utilizes PWM control with an internal oscillation frequency settable up to 1.2 MHz via an external resistor. The device features adjustable maximum duty ratio through an external resistor, allowing flexible output voltage configuration. It incorporates under-voltage lockout (UVLO) and timer latch short-circuit protection circuits for enhanced reliability in portable systems.

Feature Summary

• Integrates reference voltage circuit, oscillator, error amplifier, and PWM controller
• Features under-voltage lockout and timer latch short-circuit protection
• Allows external adjustment of oscillation frequency and maximum duty ratio

Applications

• Power supply for LCD panels
• Portable electronic systems operating on low voltage
• Battery-powered devices requiring step-up regulation

Procurement Notes

Verify the specific suffix 'T8T1G' against the official datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead-free requirements with the manufacturer prior to ordering. Ensure design-in compatibility with the required switching frequency and duty cycle settings.

Selection Notes

Select this component when a low minimum operating voltage of 1.8 V is required for boost applications. Choose based on the need for externally adjustable switching frequency and duty ratio to optimize efficiency and transient response. Verify that the TSSOP-8 package fits the PCB layout constraints.

Part Context

This part belongs to the S-8333 Series of high-frequency PWM control switching regulator controllers. The series is designed for applications requiring compact power solutions with low standby current. It complements other PMIC offerings from ABLIC Inc. focused on portable and battery-operated electronics.

Replacement Considerations

Consult the official ABLIC replacement guide or datasheet revision notes for confirmed substitute part numbers. Do not assume cross-compatibility with other series without verifying pinout and electrical parameters.