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Product Description
Product Name: 220mA 3-15V to -12V DC-DC Step-up & Step-down +/- Voltage Converter Module Board for LCD Operational Amplifier RS485 RS232
Packing list: 1 PCS 3V-15V TO -12V Boost-Buck Positive to Negative voltage Module
Description:
DC-DC Boost-Buck Inverting switch regulators Module
Input voltage DC +3~+15V,output DC -12V(Deviation is ±3%)
Maximum input current 500mA
Maximum output current : 220mA
Quiescent current: 8-18mA
DC DC Boost Converter Module working frequency 100kHz.
Operating temperature range : 0~+70 Degrees Celsius
Storage temperature range : -65~+150 Degrees Celsius
2.54mm pin pitch,for MCU Development Board Breadboard friendly.
Size : 23 x 16.3 x 6.3mm
Weight :2.9g
Applications
ADC/DAC/ Operational Amplifier
RS232 RS485 RS422 Bus
Audio equipment
LCD power supply
DVD EVD
Instrumentation equipment
MCU Board
Motor Power
Instrumentation multimeter
Wifi/Router/Ethernet devices
Attention :
This is a DC-DC voltage converter module,Must be noted when using:
1 Input voltage can not be greater than the maximum input range
2 Output power can not be greater than the maximum load for a long time
3 Input power must be greater than the output power, because the power consumption of the module itself
Q & A:
Q : Why output voltage is less than the nominal voltage
A : Input power supply power is too low.Test the input voltage with a multimeter,a t this time of the input voltage is very low