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LDO regulators capable of delivering up to 3000mA of current with input voltages ranging from 2.8V to 16V


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Overview of SPX29302T5-L

The SPX29302T5-L is a low-dropout voltage regulator capable of sourcing 3A of current with a maximum dropout of 450mV at the current level. This regulator has a 2% accuracy over line, load, and temperature. The device includes over-current and over-temperature protection as well as an enable input for power management control. With its low dropout voltage, high output voltage accuracy, and high power supply rejection ratio (PSRR), the SPX29302T5-L is suitable for various power management applications.


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

  • IN: Input Voltage
  • GND: Ground
  • EN: Enable Pin
  • OUT: Output Voltage

Circuit Diagram

Incorporate a circuit diagram that illustrates the connections and operation of the SPX29302T5-L for a more visual representation.

Key Features

  • Low Dropout Voltage: The SPX29302T5-L has a low dropout voltage of 450mV at 3A, ensuring efficient power conversion.
  • High Accuracy: With a 2% output voltage accuracy over line, load, and temperature, this regulator provides reliable voltage regulation.
  • Over-Current and Over-Temperature Protection: The device includes built-in protection features for safe operation under fault conditions.
  • Enable Input: The enable pin allows for power management control and can be used to put the device into a low-power state.
  • High PSRR: The SPX29302T5-L exhibits a high power supply rejection ratio, making it suitable for applications sensitive to input voltage variations.

Note: For detailed technical specifications, please refer to the SPX29302T5-L datasheet.


  • Power Management: The SPX29302T5-L is ideal for use in power management applications, such as powering microcontrollers, FPGAs, and other digital circuits.
  • Voltage Regulation: This voltage regulator can be used to provide a stable voltage supply for analog circuits, sensors, and other sensitive components.
  • Battery-Powered Devices: The low dropout voltage and efficient operation make the SPX29302T5-L suitable for battery-powered devices and portable electronics.


The SPX29302T5-L regulates input voltage to a stable output voltage with low dropout, high accuracy, and built-in protection features, making it a reliable choice for various power management needs.

Usage Guide

  • Input Voltage: Connect the input voltage to the IN pin.
  • Ground: Connect the ground to the GND pin.
  • Enable Pin: Control the regulator's on/off state using the EN pin.
  • Output Voltage: The regulated output voltage is available at the OUT pin.

Frequently Asked Questions

Q: What is the dropout voltage of the SPX29302T5-L at 3A?
A: The dropout voltage at 3A is 450mV, ensuring efficient power conversion.

Q: Can the SPX29302T5-L be used in battery-powered devices?
A: Yes, the low dropout voltage and power management features make it suitable for battery-powered applications.


For similar functionalities, consider these alternatives to the SPX29302T5-L:

  • LM29302: A similar low-dropout voltage regulator with adjustable output voltage and comparable current capability.
  • LT1763: This is a low dropout regulator with ultra-low quiescent current and high accuracy, suitable for battery-powered and precision applications.
  • TS5A23159: A high-performance analog switch with low ON-state resistance and low power consumption, ideal for power management and signal routing.


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

Package Tube Product Status Obsolete
Output Configuration Positive Output Type Adjustable
Number of Regulators 1 Voltage - Input (Max) 16V
Voltage - Output (Min/Fixed) 1.25V Voltage - Output (Max) 16V
Voltage Dropout (Max) 0.8V @ 3A Current - Output 3A
Control Features Enable Protection Features Over Current, Reverse Polarity, Transient Voltage
Operating Temperature -40°C ~ 125°C Mounting Type Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Supplier Device Package TO-263-5
Base Product Number SPX29302

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