LM2596HV Power Supply Module - DC/DC and AC/DC

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The LM2596HV Power Supply Module is a versatile voltage regulator and power supply device designed for applications where both AC and DC input voltages can be used, and a stable DC output voltage is required. This module features wide input voltage compatibility, making it suitable for a variety of power sources.

Specificatoins of LM2596HV Power Supply Module - DC/DC and AC/DC:

  • Type: Voltage Regulator and Power Supply Module
  • Model: LM2596HV
  • Input Voltage Range: AC 5V-30V, DC 5V-50V
  • Output Voltage Range: DC 3.3V-33V
  • Output Current: Up to 3A (Depends on input voltage and heat dissipation)
  • Output Power: 15W maximum
  • Adjustable Output: Yes
  • Efficiency: Typically 92% (depends on input/output voltage difference and load)
  • Switching Frequency: Typically 150 kHz
  • Protection Features: Over-temperature, Over-current, Short Circuit Protection (Some models may have these features)
  • Size: 51mm x 26mm
  • Connection: Screw terminals for secure connection to input and output power sources
  • Cooling Method: Natural convection (no built-in fan)
  • Mounting: Screw holes for secure attachment
  • Conversion Type: Step-Down (Buck)

Features of LM2596HV Power Supply Module - DC/DC and AC/DC:

  • Input Voltage Compatibility: This module is compatible with both AC and DC input voltages, accepting AC voltages in the range of 5V to 30V and DC voltages in the range of 5V to 50V.
  • Output Voltage Range: The LM2596HV can provide a stable DC output voltage in the range of 3.3V to 33V, making it adaptable for various voltage requirements.
  • Output Current: It can deliver an output current of up to 3A, depending on the input voltage and heat dissipation capabilities.
  • Adjustable Output: The module allows you to adjust the output voltage via the integrated potentiometer, providing flexibility for different project needs.
  • Efficiency: With a typical efficiency of 92%, this module minimizes power losses during voltage conversion, making it suitable for power-sensitive applications.
  • Switching Frequency: The module typically operates at a switching frequency of around 150 kHz.
  • Protection Features: Some models of the LM2596HV module may incorporate protection mechanisms, such as over-temperature, over-current, and short-circuit protection.
  • Connection: Screw terminals are provided for secure and reliable connection to both input and output power sources.
  • Cooling Method: Cooling is achieved through natural convection, and the module doesn't have a built-in fan.
  • Mounting: Screw holes are available for secure attachment to your project or enclosure.
  • The LM2596HV Power Supply Module is commonly used in various applications, including:
  • Power Supply Design: Building adjustable voltage power supplies for electronics projects.
  • Battery Charging: Regulating charging voltages and currents for batteries.
  • AC to DC Conversion: Converting AC voltages to stable DC outputs.
  • Solar Power Systems: Adjusting solar panel output voltages for charging batteries or powering devices.

How to Use LM2596HV Power Supply Module - DC/DC and AC/DC:

Usage Tip:

Adjust the output voltage carefully using the potentiometer to meet your specific voltage needs.

Ensure proper heat dissipation and cooling, especially when operating the module near its maximum current and voltage limits.

When adjusting the output voltage, if attempting to match the input voltage, turn the potentiometer until the value changes. Note that the potentiometer can typically be turned around 20-40 times to cover its full range of adjustment.


Be cautious when working with higher input voltages, and ensure the output voltage is within safe limits for your components.

Follow safety precautions when handling and connecting power sources to the module to prevent electrical hazards.

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