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S$1.34
XL3608 5V 9V 12V 2A Mini DC-DC Step Up Booster Switching Power Supply Module Switch Board 2.5V-11.5V Input Voltage
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Product description
This module adopts 4A switching current chip scheme, the input current MAX up to 2A, stable performance, switching frequency of about 1.2MHZ, the module works in PWM and PFM two working modes, no-load light-load module works in PFM mode to reduce the quiescent work, when the load current becomes large, automatically adjust to PWM mode, the module adopts the inductor of the sufficient current, to avoid the inductance limitation module output problem due to the inductor. The module uses a full current inductor to avoid inductance limiting the output of the module.
The module is a typical B00ST boost structure, so the output terminal is static short circuit, the output power is completely dependent on the input voltage and current, never on the market said how much voltage can output 2A current (refer to the following detailed description), the module is reserved for 5V9V12V output jumper pads to choose, the user can easily be adjusted between the above three common voltages, the same is also reserved a 0805 package ADJ pads. The module also has a 0805 ADJ pad, where users can solder resistors to set the output voltage they need.
Module Type: Switching Power Supply, Boost Power Supply
Input Voltage: DC2.5-11.5V (must be 0.5V lower than output voltage)
Input current: 2A(max)
Output current: determined by the input, refer to the subsequent instructions for calculation
Output voltage: DC 5/9/12V
Output power: user input voltage x 1.5(max)
Switching frequency: approx. 1.2MHZ
Operating mode: PWM /PFM
Static current: 200ua-600ua (PFM mode)
Adjustment mode: Jumper pad selection, 5/9/12V, ADJ pad can be adjusted by yourself
Pin Name: Pin Function
VIN: Power input positive, 2.5-11.5V
GND: input and output negative, common
VOUT: power output positive, 5/9/12V
Jumper pads: short to enable the corresponding voltage, if all the jumper pads are not shorted then use the ADJ resistor to adjust the voltage, the three pads and the ADJ resistor can only choose one way to work!
About the output:
1. The module is a boost module, so the module regulates the output voltage needs to be larger than the input voltage, after testing, it is recommended that the output voltage is higher than the input voltage by more than 0.5V, otherwise it is easy to appear the output voltage is higher than the set value.
2. Module MAX switching current of 2A, users are required to leave room for use within 1.5A, measured 3V above the voltage, the input 1.5A current can be long run, the greater the need for additional heat dissipation measures
3. Output current is determined by the input parameters, the input current shall not exceed 1.5A, to get the following formula for calculating the module output MAX current value: lout = Vin * 1.5/Vout.
4. Module in the input voltage is too low when the output power can not be fully played out, in the following 3V power supply is particularly obvious, the demand for larger power output users need to pay attention to when using.
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