MP3429 Plipping power module 21A peak input current lithium battery increase power supply 5V/12V

This module is a boost switch power supply with a high -power power density.A variety of voltage outputs (5V, 9V, 12V, 15V) are configured by default, and can be converted to the corresponding voltage output with only welding corresponding jumping points.The theoretical conversion rate ZUI can reach 97%.With overheating, the booster switch enables the feet, the module layout is regular, and the layout of the wiring, the generous materials, the small ripples, and the power output of the power supply circuit in strict accordance with the design specifications of the switching power supply circuit are convenient and practical.The MP3429 adopted by the module is a high -integrated boost converter of 600kHz fixed -band width input range.The starting voltage is low to 2.7V, and the power supply of a single battery can support a load power of up to 30W, and integrates low -divert impedance power MOSFET.A constant closing time control (COT) method can be used to provide fast transient response.The cyclical flow protection in the low -end MOSFET can prevent current from running and flying. High -end MOSFET can avoid using the external Schottky diode.

Precautions for module use

(1) The module comes with enable function. The default can be pulled by default.

(2) If the module is heated in use, please increase the heat dissipation according to the actual situation. When the belt is large, the heat sink can be appropriately increased.

(3) The module belongs to the voltage -voltage module, and the input voltage needs to be smaller than the setting voltage.

Common problems:

Q: Select 9V output at the jump point, and the module inputs 10V. Why is the output greater than 9V?

A: The module is a boost power supply. The input voltage needs to be less than the setting voltage.

Q: Why is the module conversion efficiency or tattoo waves not to the nominal value?

A: First of all, there is a correct measurement method. You can turn on the power conversion efficiency and ripple measurement method of Baidu. There are many explanations.The second is that the smaller the input and output pressure difference, the higher the efficiency, and the size of the load current will also affect efficiency and ripples.

Q: Why does the module MAX output not reach the nominal value when I use it?

A: If you want to reach the output high power, the input power of the module must be greater than the output power.