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Whole catalog Development toolsModulesPower Converter Modules
Код товара:
038132

Module DC/DC stepdown SZBK07 20A 300W CV CC

Step Down Converter Module 6-40V to 1.25-36V
Constant current up to 20A. Adjustment of output current and voltage (CC, CV).
Module DC/DC stepdown SZBK07 20A 300W CV CC
NOT available.
Expected price: 252,00 UAH
from 1 pc : 252,00 UAH
from 5 pcs : 239,40 UAH ( -5,0%)
from 20 pcs : 214,20 UAH ( -15,0%)
Prices are indicated at the time of product availability and may change upon receipt

Current balances:

NOT available

Изображение товара

Product description format_size zoom_out zoom_in

Powerful buck DC/DC converter with adjustable output voltage stabilized and adjustable maximum current. Made using synchronous rectification technology on the LM25116 microcircuit and two IRFB3607 field-effect transistors.
Adjustment of current and voltage is carried out using trimming resistors installed on the board. The output current can reach 20 A. The module is equipped with overcurrent protection, overheating protection, short circuit protection.
Great for powering LEDs, building chargers, just a regulated converter, or a module for a laboratory power supply.

Key Features:

  • Maximum output power: 300W
  • Ripple: ±50mV
  • Voltage regulation: 0.5%
  • Load regulation: 2.5%
  • Input voltage: 6 - 40 V
  • Output voltage: 1.2 - 36 V
  • Maximum output current: 20 A
  • Efficiency: ≤ 95%
  • Overload protection: yes
  • Overheating protection: yes
  • Short circuit protection: yes
  • Working temperature range: -40 ... +85°C
  • Module dimensions: 60 x 53 x 27 mm

Pinout of terminal blocks:

  • IN +: "plus" input supply voltage
  • IN-: "minus" input supply voltage
  • OUT +: "plus" output voltage
  • OUT -: "minus" output voltage

Adjustment:

  • CV: output voltage adjustment
  • CC: output current adjustment


When working with this module, it is worth considering some of its features:

  • If the radiator heats up more than 60 degrees, you need to install active cooling (fan), otherwise it may fail
  • The input/output voltage difference must be at least 2V. The output voltage cannot be more than the input voltage.
  • When using a converter, the "minus" of the input and output must be galvanically isolated (not connected), otherwise the current sense resistor will be "short-circuited" and the maximum output current limitation will not work. This can lead to module overload and failure.

Leave your feedback or ask a question

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  • Dimas 12:02 04.12.2020 share

    скажите пожалуйста этот преброзователь годится для  подключения от автомобильного аккумулятора и подачи тока 12в. 5а

    Is the review helpful?
    • sensrv (Менеджер интернет-магазина) 12:27 04.12.2020 share

      Здравствуйте.

      Это модуль понижающего типа. Чтобы он выдал 12В 5А, нужно подать не меньше 13,8 - 14 вольт.

      Is the review helpful?
The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.

If you need additional information, or you found an error in the description, or have other questions about this product, then our manager will help you: Денис - Днепр unknown

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