S-1312D19-A4T1U3

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

The S-1312D19-A4T1U3 is a CMOS positive voltage regulator from the S-1312 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 1.9 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 during operation. It features built-in overcurrent protection and thermal shutdown circuits.

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

• Built-in ON/OFF circuit for power control
• Overcurrent protection circuit
• Thermal shutdown circuit

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

• Constant-voltage power supply for portable communication devices
• Constant-voltage power supply for digital cameras
• Constant-voltage power supply for battery-powered devices

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

Verify the specific package type HSNT-4 (0808) and the D-type function configuration against project requirements. Confirm that the fixed 1.9 V output voltage aligns with the target load specifications. Ensure compatibility with the required ceramic capacitor values for stable operation under expected load conditions.

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

Select this component when a fixed 1.9 V output is required within the S-1312 series constraints. The D-type designation indicates no discharge shunt or pull-down resistor functions are available internally. Consider the HSNT-4 (0808) package dimensions and thermal dissipation capabilities relative to the application's ambient temperature and load current profile.

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

This part belongs to the S-1312 Series of low dropout voltage regulators developed using CMOS technology. The series is characterized by ultra-low current consumption, high ripple rejection, and low dropout voltage. The D-type variant specifically lacks internal discharge shunt and pull-down resistor functions, distinguishing it from other types in the family.

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

S-1312D19-M5T1U3

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

What is the function status of the ON/OFF pin for the S-1312D19-A4T1U3?

The ON/OFF logic is Active High. When the pin is set to the OFF level, the internal circuit stops operating.

Does the S-1312D19-A4T1U3 have a discharge shunt function?

No, the D-type product does not have a built-in discharge shunt circuit. The output voltage remains at the set value through internal divided resistors when powered off.