1-5pcs DC-DC Buck and Boost Module 1.8-5.5V to 3.3V 4.2V 5V 3A Adjustable Output Low Ripple Boost Buck Constant Voltage Module

Charger included : N Battery Included : no High-concerned chemical : none Model Number : DC-DC boost/buck module 1.8-5.5V to 3.3V4.2V5V Accessory Type : Charger Accessories Brand Name : occkic Origin : Mainland China Certification : NONE

Features: 1.Provide 3.3V4V/5V commonly used output voltage customers can freely adjust the 2. High-performance circuit design to reduce energy loss and ensure stable and reliable output. 3. Small size, light weight, easy to embed in a variety of equipment or DIY projects 4. Built-in multiple protection mechanisms to ensure the safe operation of the module and the connected equipment. 5. Selection of high-quality materials, product quality is guaranteed, performance is more stable. Parameter: Input voltage: DC1.8V-5.5V (recommended 2V or more) Output voltage: 3.3V/4V/5V (short-circuit regulation) Maximum operating current: 3A Regular / power saving mode optional Output short circuit protection Built-in over-temperature protection Product Description: the use of original imported big chip, Samsung capacitors, the maximum operating current of 3A, the actual situation according to the pressure difference and heating conditions reasonable choice, low power consumption can be used to short ps set point-saving mode, and remove the LEDs to reduce static power consumption, the output voltage can be set by shorting the point, and set aside a resistor welded position in order to set the other voltage Wiring instructions: VIN: DC input positive 1.8V-5.5V GND: DC input negative terminal, connected to output negative terminal OUT: DC output positive PS short point: shorted from the regular module into the power saving mode EN: module work enable, low level off the default output work Attention: 1. Input and output maximum 3A (the output does not exceed 3A in buck, and the input does not exceed 3A in boost). The actual current depends on the pressure difference and heat dissipation. 2. Without reverse connection protection, the module works with a min voltage of up to 1.8V, but the output power is small at low voltage. 3. The wiring can not be too thin, to ensure that the wire can withstand the corresponding current 4. Inductive loads to do a good job of protection, to avoid excessive reverse electromotive force beyond the chip's tolerance range 5. The more power the module uses, the closer the current is to the maximum current. The greater the heat will be, pay attention to the use of heat dissipation 6. Module in conventional mode with different voltage output and input standby current of a few ma to dozen ma are normal, short PS, remove the LED lights, standby can be done within 100uA 7. User-defined output voltage, short 3V3 pad output 3.3V voltage, the same 4V2 pad output 4.2V, prohibit simultaneous shorting of multiple pads Package include: Lift-off module *1 label:yes