S-1333B23-A4T2U3

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

The S-1333B23-A4T2U3 is a positive voltage regulator IC from the S-1333 Series, manufactured by ABLIC Inc. It utilizes CMOS technology to provide a fixed output voltage of 2.3 V with an accuracy of ±1.0%. The device supports an input voltage range of 1.5 V to 5.5 V and can deliver up to 300 mA of output current. Key electrical characteristics include a typical dropout voltage of 160 mV at 100 mA, a typical operating current consumption of 25 μA, and a ripple rejection ratio of 70 dB typ. at 1.0 kHz. It operates within an ambient temperature range of −40°C to +85°C.

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

• Built-in discharge shunt function for rapid output capacitor discharge when powered off
• Integrated overcurrent protection circuit to limit excessive output current
• Thermal shutdown circuit prevents damage caused by overheating
• ON/OFF control pin allows for significant reduction in current consumption during power-off

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

• Constant-voltage power supply for portable communication devices
• Power source for battery-powered digital cameras
• Voltage regulation for digital audio players
• Constant-voltage power supply for home electric appliances

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

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and environmental compliance. Ensure that the selected component matches the required output voltage and functional configuration, particularly regarding the ON/OFF logic and discharge capabilities. Confirm availability through authorized distributors as stock levels may vary.

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

Select this component for applications requiring low quiescent current and high ripple rejection. Consider the HSNT-4 (1010) package for compact designs. Evaluate thermal dissipation requirements if operating near maximum load currents. Ensure external ceramic capacitors of 1.0 μF or more are used for stability. Verify that the input voltage remains within the specified 1.5 V to 5.5 V range.

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

This part belongs to the S-1333 Series of low dropout regulators. The 'B' designation indicates active HIGH ON/OFF logic with a discharge shunt function but without a pull-down resistor. The 'A4T2' suffix specifies the HSNT-4 (1010) package with tape packing. The series is designed for portable electronic devices requiring efficient power management.

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

Compatible alternatives within the same series include S-1333B23-M5T1U3 (SOT-23-5 package) or S-1333B23-A4T1U3 (HSNT-4 0808 package). Cross-series replacements require verification of pinout compatibility, output voltage accuracy, and package dimensions.