S-13R1B34-M5T1U3

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

The S-13R1B34-M5T1U3 is a CMOS LDO voltage regulator from the S-13R1 series by ABLIC Inc. It provides a fixed output voltage of 3.4 V with an accuracy of ±1.0%. The device supports a maximum output current of 150 mA and operates within an input voltage range of 2.0 V to 5.5 V. Key electrical parameters include a typical dropout voltage of 150 mV at 100 mA, a ripple rejection ratio of 70 dB, and a quiescent current of 5 μA during operation. It features reverse current protection limiting leakage to 0.09 μA max.

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

• Built-in reverse current protection function prevents backflow without external diodes
• Discharge shunt circuit rapidly discharges output capacitance when disabled
• Integrated overcurrent protection and thermal shutdown circuits ensure device safety
• Active high ON/OFF logic controls power consumption states

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

• Constant-voltage power supply for battery-powered devices
• Power regulation for portable equipment
• Voltage source for home electric appliances
• Power management in mobile phones

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

Verify the specific ordering suffix M5T1U3 corresponds to the SOT-23-5 package and tape reel packing configuration. Confirm that the B-type designation matches the requirement for discharge shunt availability and the absence of constant current source pull-down functionality on the ON/OFF pin. Ensure environmental compliance codes align with project specifications.

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

Select this component for applications requiring low quiescent current and reverse current blocking capabilities. The B-type variant is suitable where output discharge upon shutdown is necessary but internal pull-down on the control pin is not desired. Verify that the required output voltage of 3.4 V is available in the standard product list or requires special request. Check power dissipation limits against ambient temperature conditions.

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

This part belongs to the S-13R1 Series, which utilizes CMOS technology to achieve low dropout characteristics and high accuracy. The series offers selectable output voltages in 0.05 V steps ranging from 1.2 V to 4.0 V. It is designed for use in portable electronics where battery life and stable voltage regulation under varying load conditions are critical performance factors.

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

S-13R1B33-M5T1U3 (3.3 V Output)

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

What is the behavior of the ON/OFF pin for the S-13R1B type?

For the S-13R1B type, the ON/OFF pin does not have an internal pull-down circuit. It must not be left floating; if unused, it should be connected to the VIN pin.

How does the reverse current protection function work?

The built-in reverse current detection circuit prevents current from flowing from the VOUT pin to the VIN pin when VOUT exceeds VIN, limiting the reverse current to a maximum of 0.09 μA.