• SPX3819M5-L-5-0 SOT-23-5
SPX3819M5-L-5-0 SOT-23-5


LDO Voltage Regulators 500mA Low Noise LDO Voltage Regulator

Quantity Unit Price(USD) Ext. Price
5 $0.120 $0.60
50 $0.098 $4.90
150 $0.086 $12.90
500 $0.077 $38.50
3000 $0.070 $210.00
6000 $0.066 $396.00


*The price is for reference only.
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Overview of SPX3819M5-L-5-0

The SPX3819M5-L-5-0 is a low-dropout voltage regulator capable of delivering up to 500mA of output current. It features a fixed 5.0V output voltage and low dropout voltage, making it suitable for various voltage regulation applications.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VOUT: Output Voltage
  • VIN: Input Voltage
  • GND: Ground
  • NC: No Connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the SPX3819M5-L-5-0 for a visual representation.

Key Features

  • Low Dropout Voltage: The SPX3819M5-L-5-0 offers a low dropout voltage, maximizing efficiency in voltage regulation.
  • Fixed Output Voltage: This regulator provides a stable 5.0V output voltage, suitable for powering various components.
  • High Output Current: Capable of delivering up to 500mA of continuous output current for powering multiple loads.
  • Short Circuit Protection: Includes built-in protection against short circuits, enhancing the reliability of the regulator.
  • Compact Package: Available in a small SOT-23-5 package for space-constrained applications.

Note: For detailed technical specifications, please refer to the SPX3819M5-L-5-0 datasheet.


  • Power Supply Regulation: Ideal for providing stable and regulated power supplies in various electronic circuits.
  • Battery-Powered Devices: Suitable for use in battery-powered devices requiring a fixed voltage output.
  • Embedded Systems: Commonly used in embedded systems, microcontrollers, and sensors for voltage regulation.


The SPX3819M5-L-5-0 is a reliable voltage regulator designed to maintain a fixed 5.0V output voltage with low dropout, ensuring consistent power delivery for connected components.

Usage Guide

  • Input Power: Connect VIN (Pin 2) to the input voltage source, ensuring it does not exceed the maximum input voltage.
  • Output Connection: Connect VOUT (Pin 1) to the load requiring a stable 5.0V supply.
  • Ground: Connect GND (Pin 3) to the common ground reference in the circuit.

Frequently Asked Questions

Q: Is heatsinking required for the SPX3819M5-L-5-0?
A: Depending on the application and load current, heatsinking may be necessary to maintain optimal performance and temperature.


For similar functionalities, consider these alternatives to the SPX3819M5-L-5-0:

  • LM2937ET-5.0: A low dropout voltage regulator with a fixed 5.0V output voltage and similar output current ratings.
  • NCP1117LPST50T3G: This regulator offers comparable performance to the SPX3819M5-L-5-0 with a fixed 5.0V output.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Manufacturer MaxLinear Product Category Linear Voltage Regulators
Series SPX3819 Packaging Alternate Packaging
Unit-Weight SIPEX Mounting-Style Surface Mount
Tradename Fixed Package-Case SOT-23-5
Operating-Temperature Up to 16V Mounting-Type 5V
Output-Type Positive Fixed Supplier-Device-Package -
Voltage-Input + 85 C Number-of-Outputs - 40 C
Current-Output 5 V Voltage-Output 2.5 V
Regulator-Topology 0.05 % Voltage-Dropout-Typical 1 %
Number-of-Regulators 700 mV

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