S-1318C22-M5T1U4

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

The S-1318C22-M5T1U4 is a CMOS positive voltage regulator IC from the S-1318 Series, featuring super low current consumption and low dropout voltage. It provides a fixed output of 2.2 V with an accuracy of ±1.0%. The device operates within an input voltage range of 1.7 V to 5.5 V and supports up to 100 mA output current when VIN ≥ VOUT(S) + 1.0 V. Typical current consumption during operation is 95 nA, dropping to 2 nA during power-off. It includes built-in overcurrent protection and an ON/OFF control circuit.

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

• Ultra-low current consumption of 95 nA during operation and 2 nA in power-off mode
• Built-in discharge shunt function for rapid output capacitor discharge
• Internal constant current source pull-down on the ON/OFF pin
• Integrated overcurrent protection circuit

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

• Constant-voltage power supply for battery-powered devices
• Power supply for portable communication equipment
• Power supply for digital cameras and 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 suffix 'C' to confirm the presence of the discharge shunt function and the absence of the constant current source pull-down on the ON/OFF pin. Ensure the ordering code matches the required package configuration and environmental specifications before finalizing procurement.

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

Select this component for applications requiring precise 2.2 V regulation with minimal quiescent current. The C-type designation indicates specific ON/OFF pin behaviors; verify that the internal pull-down and lack of discharge shunt align with system standby requirements. Ensure input and output capacitors meet stability criteria.

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

This part belongs to the ABLIC S-1318 Series of linear regulators designed for portable electronics. The series utilizes CMOS technology to achieve high efficiency and low power usage. The S-1318C22 variant specifically offers a 2.2 V fixed output, distinguishing it from other voltage options within the same family.

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

S-1318B22-M5T1U4

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

What is the behavior of the ON/OFF pin when left floating?

For the S-1318 Series C type, the ON/OFF pin is internally pulled down to the VSS pin when floating, setting the VOUT pin to the VSS level.

Does this device include a discharge shunt function?

No, the S-1318 Series C type does not have a built-in discharge shunt circuit. The VOUT pin reaches the VSS level through internal divided resistors.