S-1222B33-S8T1U

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The S-1222B33-S8T1U is a positive voltage regulator from the S-1222B/D Series, manufactured by ABLIC Inc. It utilizes high-withstand voltage CMOS process technology to provide a fixed output voltage of 3.3 V with an accuracy of ±1.0% at +25°C. The device supports an input voltage range of 3.0 V to 28 V and delivers an output current up to 200 mA when the dropout condition is met. It features low current consumption of 6.5 μA during operation and includes built-in overcurrent protection and thermal shutdown circuits.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Built-in ON/OFF circuit with discharge shunt function for extended battery life
• High withstand voltage capability up to 28 V using CMOS process technology
• Integrated overcurrent protection and thermal shutdown safety mechanisms

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Constant-voltage power supply for industrial equipment
• Constant-voltage power supply for home electric appliances
• Constant-voltage power supply for smartcard systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific package type HTMSOP-8 and the B-type ON/OFF logic configuration against the datasheet before procurement. Confirm that the application environment remains within the specified operating temperature range of -40°C to +85°C. Ensure proper thermal management is implemented to prevent triggering the thermal shutdown circuit under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring a stable 3.3 V rail from higher voltage sources up to 28 V. The B-type variant is suitable where the ON/OFF pin requires a minimum high-level input of 1.5 V. Consider the thermal resistance characteristics of the HTMSOP-8 package when designing for high ambient temperatures or continuous full-load operation to ensure reliability.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the S-1222B/D Series, which offers selectable output voltages in 0.1 V steps ranging from 2.3 V to 12.0 V. The series is designed for high-reliability applications due to its robust protection features and wide input voltage tolerance. The S-1222B33-S8T1U specifically denotes the 3.3 V output version housed in the HTMSOP-8 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Other parts in the S-1222B/D series with different output voltages or packages may serve as functional substitutes if electrical parameters align. Verify compatibility regarding the ON/OFF logic thresholds between B-type and D-type variants before substitution.