S-8338AADA-T8T1G

Overview

The S-8338AADA-T8T1G is a CMOS step-up switching regulator controller from the S-8338 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 1.133 MHz via an external resistor on the ROSC pin. The device features a fixed maximum duty ratio of 88% and includes under-voltage lockout (UVLO) and timer latch short-circuit protection circuits. It is housed in an 8-pin TSSOP package.

Feature Summary

• Integrates reference voltage, oscillator, error amplifier, and PWM controller for efficient step-up regulation.
• Features timer latch short-circuit protection circuit for enhanced system safety.
• Supports adjustable internal oscillation frequency up to 1.133 MHz via external components.
• Includes under-voltage lockout (UVLO) functionality for stable operation at low input voltages.

Applications

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

Procurement Notes

Verify the specific suffix 'AADA' against the official ABLIC datasheet to confirm output configuration and pinout compatibility. Ensure the ordering quantity aligns with manufacturer reel specifications. Confirm RoHS compliance status through current environmental documentation before finalizing procurement.

Selection Notes

Select this component when a fixed maximum duty ratio of 88% is required for boost applications. It is suitable for designs needing an adjustable switching frequency up to 1.133 MHz. Consider the 1.8 V minimum operating voltage for low-power portable applications requiring high-frequency PWM control.

Part Context

This part belongs to the S-8337/8338 series of high-frequency PWM control switching regulator controllers. The S-8338 variant distinguishes itself with a fixed maximum duty ratio, unlike the S-8337 series which allows duty ratio adjustment via an external resistor. Both series share similar core architectures including UVLO and short-circuit protection.

Replacement Considerations

S-8338ABEC-T8T1G is a confirmed substitute within the same series offering identical functional characteristics and package type.