S-1312B22-M5T1U3

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

The S-1312B22-M5T1U3 is a positive voltage regulator IC from the S-1312 Series, manufactured by ABLIC Inc. using CMOS technology. It provides a fixed output voltage of 2.2 V with an accuracy of ±1.0%. The device supports an input voltage range of 1.5 V to 5.5 V and delivers up to 150 mA of output current. Key electrical characteristics include a typical dropout voltage of 160 mV at 100 mA, a ripple rejection of 70 dB typ., and low current consumption of 20 μA typ. during operation. It features built-in overcurrent protection and thermal shutdown circuits.

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

• Built-in discharge shunt function for rapid output capacitor discharge when powered off
• High ripple rejection capability for stable power supply performance
• Integrated overcurrent protection and thermal shutdown circuits for device safety

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

• Constant-voltage power supply for portable communication devices
• Power supply 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 product type B configuration, which includes the discharge shunt function but lacks the pull-down resistor on the ON/OFF pin. Confirm the package designation M5T1U3 corresponds to the SOT-23-5 form factor with tape packing. Ensure environmental compliance requirements match the U3 suffix specifications for lead-free and halogen-free materials before finalizing procurement orders.

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

Select this component when a fixed 2.2 V output is required with high accuracy. The B-type variant is suitable for applications needing fast output discharge upon shutdown but do not require an internal pull-down resistor on the control pin. Ensure input voltage remains within the 1.5 V to 5.5 V range and verify that the package power dissipation limits are not exceeded under maximum load conditions.

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

This part belongs to the S-1312 Series of low-dropout voltage regulators designed for portable electronic equipment. The series utilizes CMOS technology to achieve low current consumption and high ripple rejection. The S-1312B22-M5T1U3 specifically denotes the B-type functional configuration with a 2.2 V output voltage in an SOT-23-5 package.

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

Other S-1312 Series variants with different output voltages or package types may serve as alternatives if functional parameters align. Verify compatibility regarding the ON/OFF pin logic and discharge functions when substituting with other product types (A, C, or D) within the same series.