DC-DC Boost-Buck Converter, 8V-40V to 13.8V

SKU: PH-DCBBC-8-40S13R8
$57.35
● DC-DC buck and boost converter with a wide input voltage range of 8-40V is an efficient and stable bi-directional voltage regulator module. ● The output of high current buck boost converter is stabilized at 13.8V, and the output current supports 3A/5A/10A/20A. ● Conversion efficiency of more than 90%, even at low voltage can provide stable power. ● Power supply noise as low as 250mVp-p and cost-effective design with built-in 20A fuse and short-circuit protection are available from stock.
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Overview

High efficiency buck and boost converter (8-40V to 13.8V) in stock for sale! Continuous input voltage up to 40V, output accuracy ±2%, output current 3A/5A/10A/20A optional, support for over-current, short-circuit and over-temperature protection (80°C automatic recovery), safe and reliable.

DC DC boost buck converter 8v-40v to 13.8v features

Feature

  • Up to 90%+ conversion power, input voltage 8-40V, output stabilized at 13.8V.
  • Current optional 3A/5A/10A/20A, with automatic recovery undervoltage protection.
  • Best buck boost converter adopts natural cooling, up to 200,000 hours of trouble-free operation.
  • With comprehensive protection functions such as short circuit, over temperature (shell 80ā„ƒ automatic recovery), no external capacitor, extremely easy to use.
 

Details

  1. The die-cast aluminum alloy shell has better thermal conductivity/heat dissipation effect and strengthens the hardness of the dc converter body itself.
  2. DC-DC step up down converter organic silicone potting with IP68 protection level, waterproof, dustproof and shockproof, can be applied to a variety of harsh environments.
  3. The inductance directly affects the stability of the power supply. This 13.8V buck boost converter's pure copper inductor with magnetic core can effectively play the role of filtering, oscillation, trapping and so on.
  4. Adopting various precision components and synchronous voltage regulator technology, the power supply has extremely low heat generation, sufficient power, stable output and higher conversion efficiency.
DC DC boost buck converter 8v-40v details

Dimension (unit: mm)

8V-40V to 13.8V 3A

DC DC boost buck converter 8v-40v, 13.8V 3A dimension

8V-40V to 13.8V 5A/10A/20A

DC DC boost buck converter 8v-40v, 13.8V 6A dimension

Wiring Diagram

DC DC boost buck converter 5v-36v wiring

Specs
Input
Input Voltage 8-40V
Max. Input Voltage 40V (Continuous)
Undervoltage Shutdown 7.5-7.8V (Automatic Recovery)
Undervoltage Recovery 8.5-8.7V (Automatic Recovery)
Max. Input Current 6.1A (Vin=7.8V; Iout =3A)
No Load Current 30mA (Typ. 15mA; Vin=24V)
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 /
Fuse 20A (Input positive has built-in fuse)
Output
Efficiency 89.6% (Vin=24V; Iout=3A)
Output Voltage 13.5-13.9V (Vin=24V; Iout=3A)
Regulator Accuracy ±2%
Voltage Regulation
Load Regulation
Overvoltage Protection /
Output Current 0-3A
Overcurrent Protection 7.5A (Vin=24V)
External Capacitance Don't need
Output Ripple and Noise 250mVp-p (Vin=8-40V; Iout=3A, Oscilloscope Bandwidth: 20 MHz)
Output Voltage Rise Time 30mS
Boot Delay Time 30mS
Out Voltage Overshoot 2% (Vin=24V, 50%-75% Load Step)
Over Temperature Protection Shell temperature, @ 80°C Restore working
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: ≄50MĪ© (Test Voltage =500V)
Input to shell: ≄50MĪ© (Test Voltage =500V)
Output to shell:≄50MĪ© (Test Voltage =500V)
Absolute Maximum Ratings
Operating Ambient Temperature -40-50ā„ƒ
Shell Ambient Temperature -40-80ā„ƒ
Storage Temperature -55-100ā„ƒ
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 100±10kHz

Note: This table takes the specification of 8-40V to 13.8V, 3A as an example, please see the selection table below for 5A/10A/20AĀ specification files.


DC-DC Boost-Buck Converter Model Selection

Output Current/Power: 3A/41.4W, Efficiency: 89.6%, Size: 64*57*22mm PDF computing8V-40V to 13.8V, 3A DC-DC Boost-Buck Converter User Manual
Output Current/Power: 5A/69W, Efficiency: 93.5%, Size: 74*74*32mm PDF computing8V-40V to 13.8V, 5A DC-DC Boost-Buck Converter User Manual
Output Current/Power: 10A/138W, Efficiency: 93.5%, Size: 74*74*32mm PDF computing8V-40V to 13.8V, 10A DC-DC Boost-Buck Converter User Manual
Output Current/Power: 20A/276W, Efficiency: 96.2%, Size: 74*74*32mm PDF computing8V-40V to 13.8V, 20A 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: What equipment is the 8V-40V to 13.8V DC-DC converter suitable for powering?

The 13.8V output voltage is widely used in automotive communication equipment (such as walkie-talkies), LED light bars, industrial control boards, battery maintenance charging and other applications. This DC-DC step up down converter is ideal for use as a voltage regulator in mixed high and low voltage power supply systems, especially where a stable power supply is required for a long period of time.

Q2: Does this DC-DC boost-buck converter support scenarios with input voltages above and below the output voltage?

Yes, the boost buck converter supports a wide range of inputs (8V-40V) and can stabilize the output voltage to 13.8V, which is normal regardless of whether the input voltage is above, equal to, or below 13.8V. This is the core advantage of the ā€œBoost-Buckā€ structure, which is particularly suitable for voltage regulation applications in automotive, solar systems and unstable power supply scenarios.

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