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    DC-DC Buck Converter, 72V to 12V

    5 out of 5 based on 1 reviews | Write a review
    Economical price DC-DC power converter is a buck converter with wide input volt range of 18V to 90V, designed to step down the input rated voltage 72V DC to 12V output voltage, high conversion efficiency up to 90.6%, and 5A, 10A currents are available for selection.
    SKU: ATO-DCDC-7212
    30-day Returns
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    Delivery date: 6-12 days

    72V to 12V mini buck converters are DC-DC step down converters, which adopt synchronous rectification technology, with high efficiency 91%, optimized for low-power applications.


    • Wide input voltage range: 18V to 90V.
    • Brand-new, die-cast aluminum shell and high quality design, maximum transfer efficiency of 91%.
    • This DC buck module comes with waterproof lever of IP67, moisture-proof & anti-shock protection.
    • Auto-recovery when the device is back to normal operating.
    • Built-in full protection against over/under voltage input, over-current, overload, overhead, over-temperature and short circuit.
    • Industry grade DC 72V to 12V buck converter, widely used in automotive, electricity, surveillance systems, railway signals, instruments, solar generates electricity, display screen of bus and taxi, car audio device, security systems, hospital equipment, telecommunications etc.

    5A DC-DC Buck Converter Specification

    Model ATOWG-72S1215
    Input Rated voltage 72V
    Voltage range 18-90V
    Efficiency 90.6% @ 72V input
    Output Voltage 12V
    Max. rated current 5A
    Max. rated power 60W
    Voltage regulation ±1%
    Load regulation 2%
    No load loss 70mA
    Ripple & noise 120mV
    Environment Working temperature -40 ~ +80℃
    Working humidity 10% ~ 90%RH
    Storage temperature -40 ~ +100℃
    Function Short circuit protection YES
    Over current protection YES
    Waterproof IP67
    Over temperature protection YES
    Over voltage protection YES
    Mechanical Weight 300g
    Size 64*57*22mm

    72V to 12V DC-DC Buck Converter Model Selection

    Code Model Price Input Voltage Output Voltage Output Current Output Power Efficiency Size Download
    1 ATOWG-72S1205 $56.99 72V DC 12V DC 5 Amps 60 Watts 90.6% 64*57*22mm ATO PDF
    2 ATOWG-72S1210Z $66.99 72V DC 12V DC 10 Amps 120 Watts 91% 64*57*22mm ATO PDF

    Note: The series of 72 V to 12V DC-DC buck converter models are all here, check the parameter carefully from the table and select the right converter power supply when place the order.

    Tips: How does a DC-DC buck converter work?

    A DC-DC buck converter is a power electronics device that steps down a higher input voltage to a lower output voltage. It operates by rapidly switching a semiconductor switch (typically a transistor) on and off. During the "on" state, the switch allows current to flow from the input source to an inductor, storing energy in the inductor's magnetic field. When the switch turns off, the inductor releases this stored energy, but in doing so, it generates a lower voltage across its terminals.

    A diode and an output capacitor smooth the voltage and current, creating a stable lower-voltage output. The duty cycle (ratio of switch-on time to total cycle time) controls the output voltage; a higher duty cycle results in a lower output voltage. Buck converters are highly efficient and are commonly used in applications like voltage regulation, battery charging, and power supplies in electronics.

    Existing reviews of DC-DC Buck Converter, 72V to 12V
    Highly efficient step-down technology
    The DC-DC Buck Converter has a highly efficient step-down technology making the conversion from 72V to 12V efficient and stable. The compact design of this converter is suitable for limited space, and heat dissipation has been taken into account to ensure that the device runs efficiently for long periods of time without overheating.
    From: Aberico | Date: 23/11/2023
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