S-8333AAEC-T8T1G

Overview

The S-8333AAEC-T8T1G is a CMOS step-up switching regulator controller from the S-8333 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 internal oscillation frequency is adjustable up to 1.08 MHz via an external resistor on the ROSC pin. The maximum duty ratio is configurable through an external resistor connected to the RDuty pin. Phase compensation and gain are adjusted using components on the CC pin. The device includes under-voltage lockout and timer latch short-circuit protection circuits.

Feature Summary

• Integrates reference voltage circuit, oscillator, error amplifier, PWM controller, UVLO, and short-circuit protection.
• Supports low-voltage operation with a minimum operating voltage of 1.8 V.
• Allows flexible configuration of oscillation frequency and maximum duty ratio via external resistors.
• Enables stability adjustment through phase compensation and gain setting on the CC pin.

Applications

• Power supply for LCD modules
• Portable systems requiring low-voltage operation
• Step-up DC-DC converter designs

Procurement Notes

Verify the specific suffix 'AAEC' against the official ABLIC datasheet to confirm the exact electrical characteristics and package type. Ensure compatibility with the required oscillation frequency and duty ratio settings defined by the external component values. Confirm RoHS compliance status and lead-free specifications as per the latest manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when a low input voltage start-up capability down to 1.8 V is required. Consider the S-8333 series for applications needing adjustable switching frequencies up to 1.08 MHz. Evaluate the need for external duty ratio control versus fixed options available in other series variants. Ensure the design accommodates the necessary external resistors and capacitors for frequency, duty cycle, and compensation settings.

Part Context

The S-8333 Series comprises CMOS step-up switching regulator controllers designed for high-frequency operation. These devices are part of ABLIC's PMIC portfolio, focusing on efficient power management for portable electronics. The series integrates essential protection features and allows significant flexibility in circuit design through external pin configurations, distinguishing it from fixed-function regulators.

Replacement Considerations

The S-8333ABFC-T8T1G and S-8333AACB-T8T1G are documented members of the same S-8333 Series. Verify if alternative suffixes meet the specific frequency and duty ratio requirements. Cross-reference the pinout and electrical parameters with the official datasheet to ensure functional equivalence without redesigning the external component network.