S-13R1D39-A4T2U3

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

The S-13R1D39-A4T2U3 is a CMOS positive voltage regulator from the S-13R1 series, providing a fixed output of 3.9 V with a maximum current capacity of 150 mA. It operates within an input voltage range of 2.0 V to 5.5 V and features a dropout voltage of 150 mV typ at 100 mA. The device includes reverse current protection limiting leakage to 0.09 μA max, overcurrent protection, and thermal shutdown circuits. It consumes 5 μA typ during operation and utilizes ceramic capacitors of 1.0 μF or more for stability.

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

• Integrated reverse current protection function prevents backflow without external diodes
• Built-in discharge shunt and constant current source pull-down capabilities are unavailable in this D-type variant
• Includes overcurrent protection circuit and thermal shutdown mechanism for load safety

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

• Constant-voltage power supply for battery-powered devices
• Power regulation for portable equipment
• Voltage stabilization for home electric appliances
• Mobile phone power management systems

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

Verify the specific package type HSNT-4 (1010) matches your board layout requirements. Confirm that the ON/OFF pin logic active high aligns with your control signals. Ensure input and output capacitor values meet the minimum 1.0 μF ceramic specification for stable operation across the temperature range.

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

Select this component when a fixed 3.9 V output is required with minimal quiescent current consumption. The D-type designation indicates the absence of internal discharge shunt and pull-down functions, which may simplify external circuitry if these features are not needed. Verify that the package power dissipation limits accommodate your specific input-output voltage differential and load current conditions.

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

This part belongs to the ABLIC S-13R1 series of low dropout regulators. The series offers selectable output voltages in 0.05 V steps ranging from 1.2 V to 4.0 V. It is manufactured using CMOS technology to achieve high accuracy and low current consumption while maintaining ripple rejection characteristics suitable for sensitive analog and digital loads.

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

S-13R1B39-A4T2U3: Offers identical electrical specifications but includes a built-in discharge shunt function.