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    Picture of DC-DC Boost and Buck Converter, 8V-40V to 12V
    Picture of DC-DC Boost and Buck Converter, 8V-40V to 12V
    Picture of DC-DC Boost and Buck Converter, 8V-40V to 12V
    Picture of DC-DC Boost and Buck Converter, 8V-40V to 12V

    DC-DC Boost and Buck Converter, 8V-40V to 12V

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    SKU: PH-DCBBC-8-40S12
    $52.53
    ● DC-DC boost and buck converter supports 8V-40V wide voltage input and output stabilized at 11.9-12.3V with multiple safety mechanisms. ● Built-in 20A fuse, support up to 3A/6A/10A/20A/25A/30A stabilized current output options. ● High efficiency conversion rate up to 89.1%, MTBF over 200,000 hours, suitable for long-term operation system. ● Reasonable price and multiple solutions are suitable for powering a wide range of devices such as routers, motor drives, security monitoring and so on.
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    Overview

    Boost buck converter for input voltage up to 8V to 40V, with DC-DC auto boost and buck function. High efficiency conversion rate up to 89.1%, even under input fluctuation or high load conditions, can maintain ±1% voltage stability, high current buck boost converter optional 3A/6A/10A/20A/25A/30A, designed for power supply applications requiring stable 12V output.

    DC DC boost buck converter 8v-40v features

    Feature

    • Designed according to CE/RoHS, 100% full power, DC-DC converter with high stability output.
    • Has passed 100% full load aging test, imported components (such as: Black Diamond, TI, Ruby, etc.).
    • Shockproof aluminum alloy shell, small size, easy installation, built-in over-current, low voltage, over-temperature, short circuit protection.
    • 8-40V wide voltage input, to 12V output, up to 89-95% conversion efficiency.
     

    Details

    1. Die-casting Aluminum Shell: The boost buck converter with this encapsulation method has good heat dissipation function, safe and reliable.
    2. High-quality Organic Silicone: With potting, waterproof, dustproof, shockproof, IP68 waterproof and so on.
    3. Pure Copper with Magnetic Core Inductor: It can effectively play the role of filtering oscillation, trapping, DC converter inductor good or bad directly affect the stability of the power supply.
    4. SMT SMD Technology: Adopting new and high quality electronic components (e.g. TI NCC, NICHICON, NIPPON, etc.). High stability and reliability.
    DC DC boost buck converter 8v-40v details

    Dimension (unit: mm)

    8V-40V to 12V 3A

    DC DC boost buck converter 8v-40v 3A dimension

    8V-40V to 12V 6A-20A

    DC DC boost buck converter 8v-40v 6A dimension

    8V-40V to 12V 25A-30A

    DC DC boost buck converter 8v-40v 25A dimension

    Wiring Diagram

    DC DC boost buck converter 5v-36v wiring

    Specs
    Input
    Input Voltage 8-40V
    Max. Input Voltage 40V (Continuous)
    Undervoltage Shutdown 7.8-8.2V (Automatic Recovery)
    Undervoltage Recovery 8.5-8.7V (Automatic Recovery)
    Max. Input Current 5.7A (Vin=8.1V; Iout =3A)
    No Load Current 54mA (Typ. 51mA; Vin=12V)
    Positive Electrode Cable 18 AWG (If the wire length is greater than 50cm, it is recommended to use a thicker wire diameter.)
    Negative Electrode Cable
    Enable Pin Cable 22 AWG (If the product has this feature)
    Fuse 20A (Input positive has built-in fuse)
    Output
    Efficiency 89.1% (Vin=12V; Iout=3A)
    Output Voltage 11.9-12.3V (Vin=12V; Iout=3A)
    Regulator Accuracy ±1%
    Voltage Regulation
    Load Regulation
    Overvoltage Protection /
    Output Current 0-3A
    Overcurrent Protection 5.7-6.3A (Vin=12V)
    External Capacitance 0-4000μF
    Output Ripple and Noise 340mVp-p (Vin=8-40V; Iout=3A, Oscilloscope Bandwidth: 20 MHz)
    Output Voltage Rise Time 4.0mS
    Boot Delay Time 12.8mS
    Out Voltage Overshoot 2% (Vin=12V, 50%-75% Load Step)
    Over Temperature Protection /
    Short Circuit Protection Long-term (4 hours) short circuit is notdamaged, Hiccup mode
    Positive Electrode Cable 18 AWG (If the wire length is greater than 50cm, it is recommended to use a thicker wire diameter.)
    Negative Electrode Cable
    Safety and EMC Features
    Anti-electric Strength Input to output: /
    Input to shell: ≥500V (Leakage Current ≤ 3.5mA, 1min,No Breakdown, No Arcing)
    Output to shell: ≥500V (Leakage Current ≤ 3.5mA, 1min,No Breakdown, No Arcing)
    Insulation Resistance Input to output: ≥50MΩ (Test Voltage =500V)
    Input to shell: ≥50MΩ (Test Voltage =500V)
    Output to shell:≥50MΩ (Test Voltage =500V)
    Absolute Maximum Ratings
    Operating Ambient Temperature -40-50℃
    Shell Ambient Temperature -40-80℃
    Storage Temperature -55-100℃
    Operating Humidity 5-95% (Non-condensing)
    Atmospheric Pressure 62-106Kpa
    Altitude 4000m
    Cooling Way Natural cooling
    Other
    Weight ≤120g
    Package White Box
    MTBF ≥200000H
    Switching Frequency 80±10kHz

    Note: This table takes the specification of 8-40V to 12V, 3A as an example, please see the selection table below for 6A/10A/20A/25A/30A specification files.


    DC-DC Boost-Buck Converter Model Selection

    Output Current/Power: 3A/36W, Efficiency: 89.1%, Size: 64*57*22mm PDF computing8V-40V to 12V, 3A DC-DC Boost-Buck Converter User Manual
    Output Current/Power: 6A/72W, Efficiency: 90.8%, Size: 74*74*32mm PDF computing8V-40V to 12V, 6A DC-DC Boost-Buck Converter User Manual
    Output Current/Power: 10A/120W, Efficiency: 90.8%, Size: 74*74*32mm PDF computing8V-40V to 12V, 10A DC-DC Boost-Buck Converter User Manual
    Output Current/Power: 20A/240W, Efficiency: 96%, Size: 74*74*32mm PDF computing8V-40V to 12V, 20A DC-DC Boost-Buck Converter User Manual
    Output Current/Power: 25A/300W, Efficiency: 96%, Size: 100*80*39mm PDF computing8V-40V to 12V, 25A DC-DC Boost-Buck Converter User Manual
    Output Current/Power: 30A/360W, Efficiency: 96%, Size: 100*80*39mm PDF computing8V-40V to 12V, 30A DC-DC Boost-Buck Converter User Manual
    Application
    Industrial equipment

    Industrial Equipment

    Automotive equipment

    Automotive Equipment

    Vehicle LED advertising

    Vehicle LED Advertising

    Communication equipment

    Communication Equipment

    FAQ

    Q1: Is this DC-DC converter a boost or a buck?

    It is a boost and buck 2-in-1 (Boost and Buck) DC-DC converter that supports input voltages in the range of 8V to 40V, and it stabilizes the output of a constant 12V regardless of whether the input voltage is above or below 12V. This makes it ideally suited for use in batteries, solar systems, or in-vehicle applications where voltage fluctuations are significant.

    Q2: What is the maximum output power of DC-DC boost and buck converter, 8V-40V to 12V?

    These buck and boost converters usually have a high conversion efficiency (85% or more) and a maximum output current of about 3A (depending on the model and heat dissipation conditions). It is recommended to use with a heat sink or fan at high loads to avoid overheating protection triggers. Make sure the input voltage is sufficient to maintain 12V stable output.

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