S-1312D2J-A4T2U3

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

The S-1312D2J-A4T2U3 is a CMOS positive voltage regulator IC from the S-1312 Series, manufactured by ABLIC Inc. It features an input voltage range of 1.5 V to 5.5 V and provides a fixed output voltage of 2.2 V with ±1.0% accuracy. The device supports up to 150 mA output current while maintaining low current consumption of 20 μA typ. during operation. Key electrical parameters include a dropout voltage of 160 mV typ. at 100 mA, ripple rejection of 70 dB typ., and an operating temperature range of −40°C to +85°C. It utilizes the HSNT-4 (1010) package.

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

• Built-in ON/OFF circuit for power management
• Integrated overcurrent protection and thermal shutdown circuits
• Compatible with ceramic capacitors for input and output stabilization

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
• Power source for home electric appliances

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

Verify the specific product type D configuration regarding discharge shunt and pull-down resistor availability against system requirements. Confirm the HSNT-4 (1010) package dimensions match the PCB land pattern specifications provided in the datasheet. Ensure external capacitor values meet the minimum capacitance requirements for stable operation across the specified temperature range.

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

Select this component when a fixed 2.2 V output is required within the S-1312 series. The 'D' type designation indicates no internal discharge shunt or pull-down resistor on the ON/OFF pin, which differs from other series types. Consider the package power dissipation limits if high load currents are expected. Verify that the input voltage remains within the 1.5 V to 5.5 V range for proper regulation.

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 offers selectable output voltages in 0.05 V steps ranging from 1.0 V to 3.5 V. The S-1312D variant specifically excludes the discharge shunt and pull-down functions found in other types, providing a simpler control interface for the ON/OFF pin.

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

S-1312D22-A4T2U3 is the confirmed substitute part number for the same output voltage and package configuration.