• SPX3819M5-L-5-0/TR SOT23-5
SPX3819M5-L-5-0/TR SOT23-5


SPX3819M5-L-5-0/TR is a 5 V fixed output SMT LDO regulator with a maximum output current of 500 mA

Quantity Unit Price(USD) Ext. Price
5 $0.234 $1.17
50 $0.190 $9.50
150 $0.170 $25.50
500 $0.147 $73.50
3000 $0.130 $390.00
6000 $0.124 $744.00


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

The SPX3819M5-L-5-0/TR is a low-dropout voltage regulator with a fixed output voltage of 5.0V. It is designed to provide a stable and regulated output voltage with minimal dropout voltage, making it suitable for various electronic applications.


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

  • VOUT: Regulated Output Voltage
  • VIN: Input Voltage
  • GND: Ground Connection
  • ADJ: Output Voltage Adjustment Pin

Circuit Diagram

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

Key Features

  • Fixed Output Voltage: The SPX3819M5-L-5-0/TR provides a stable 5.0V output voltage, eliminating the need for external voltage regulation.
  • Low Dropout Voltage: This voltage regulator has a low dropout voltage, ensuring efficient power conversion with minimal power loss.
  • High Accuracy: With high precision voltage regulation, the SPX3819M5-L-5-0/TR offers accurate output voltage for precise electronic device operation.
  • Short Circuit Protection: The regulator includes short circuit protection to safeguard the circuit and connected components from damage in case of a fault.
  • Thermal Shutdown: Features thermal shutdown functionality to prevent overheating and ensure safe operation under varying load conditions.

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


  • Power Supply Regulation: Ideal for providing regulated power supply to various electronic components and circuits.
  • Battery-Powered Devices: Suitable for use in battery-powered devices requiring a stable output voltage for smooth operation.
  • Embedded Systems: Used in embedded systems, microcontrollers, and other electronic applications for voltage regulation purposes.


The SPX3819M5-L-5-0/TR voltage regulator delivers a consistent 5.0V output voltage with low dropout and high accuracy, ensuring reliable power supply in diverse electronic systems.

Usage Guide

  • Input Voltage: Apply the required input voltage within the specified range to VIN (Pin) for proper regulation.
  • Output Voltage Adjustment: The ADJ pin can be used for fine-tuning the output voltage if necessary, though the output is fixed at 5.0V.
  • Ground Connection: Connect the GND pin to the ground reference of the circuit for proper functioning.

Frequently Asked Questions

Q: Can the SPX3819M5-L-5-0/TR handle input voltages higher than 5.0V?
A: The SPX3819M5-L-5-0/TR is designed for a fixed 5.0V output and can regulate input voltages slightly higher than 5.0V, but it is recommended to stay within the specified limits for optimal performance.

Q: Is the SPX3819M5-L-5-0/TR suitable for automotive applications?
A: Yes, the SPX3819M5-L-5-0/TR can be used in automotive applications, providing stable voltage regulation for various automotive electronics.


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

  • LM2937-5.0: A 5.0V low-dropout voltage regulator offering similar performance and fixed output voltage.
  • XC6206P500MR: This is a 5.0V fixed output voltage regulator with low dropout characteristics, suitable for voltage regulation applications.



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

Product Category LDO Voltage Regulators RoHS Details
Mounting Style SMD/SMT Package / Case SOT-23-5
Output Voltage 5 V Output Current 500 mA
Number of Outputs 1 Output Polarity Positive
Quiescent Current 50 nA Input Voltage, Min 2.5 V
Input Voltage, Max 16 V PSRR / Ripple Rejection - Typ 70 dB
Output Type Fixed Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Dropout Voltage 340 mV
Series SPX3819 Brand MaxLinear
Dropout Voltage - Max 550 mV Height 1.15 mm
Length 2.9 mm Line Regulation 0.04 %/V
Load Regulation 0.05 % Product LDO Voltage Regulators
Product Type LDO Voltage Regulators Reference Voltage 1.235 V
Factory Pack Quantity 3000 Subcategory PMIC - Power Management ICs
Tolerance 1 % Type Low Noise LDO Voltage Regulator
Voltage Regulation Accuracy 1 % Width 1.6 mm
Unit Weight 0.000222 oz

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