1、100% brand new and high quality. 2、This is a DC-DC boost converter module with working frequency of 1 MHz. 3、The module has high efficiency up to 95%, usually can be 76%~93%. 4、Ultra small size and light weight, it is convenient to use. 5、Widely used for battery-powered devices, multimeter, small power motors, cameras, electric toys, model aircraft, LED lighting, electronic DIY kits, etc.<div class="wang-edit-text"><strong><span style="font-size:16px;font-family:Arial;">Features:</strong> <span style="font-size:16px;font-family:Arial;">100% brand new and high quality. <span style="font-size:16px;font-family:Arial;">This is a DC-DC boost converter module with working frequency of 1 MHz. <span style="font-size:16px;font-family:Arial;">The module has high efficiency up to 94%, usually can be 84%~91%. <span style="font-size:16px;font-family:Arial;">Ultra small size and light weight, it is convenient to use. <span style="font-size:16px;font-family:Arial;">Widely used for battery-powered devices, multimeter, small power motors, cameras, electric toys, model aircraft, LED lighting, electronic DIY kits, etc. <strong><span style="font-size:16px;font-family:Arial;">Specification:</strong><span style="font-size:16px;font-family:Arial;"> <span style="font-size:16px;font-family:Arial;">Output voltage: 3.7V, 5V, 12V&nbsp;<span style="font-size:16px;font-family:Arial;">(<strong><span style="color:#E53333;">Optional</strong>) <span style="font-size:16px;font-family:Arial;">Efficiency: 94% (usually is 84%-91%)<span style="font-size:16px;font-family:Arial;"> Quiescent current: 0.19mA<span style="font-size:16px;font-family:Arial;"> Operating temperature range : -40~+85 Degrees CelsiusStorage temperature range : -65~+150 Degrees Celsius <span style="font-size:16px;font-family:Arial;"> <span style="font-size:16px;font-family:Arial;">Size: 13*11*5.2mm / 0.5*0.4*0.2in <span style="font-size:16px;font-family:Arial;">Weight: 2g / 0.1oz (approx.) <span style="font-size:16px;font-family:Arial;">Protection : Over current protection(OCP)Over voltage protection(OVP)Short circuit protection(SCP)Over temperature protection(OTP) Pin description:Vi&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : Input positive(+)GND&nbsp; : Input and Output negative(GND/-)Vo&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : Output positive(+)&nbsp;<strong>Output 3.7V :</strong><div><span style="font-size: medium;">Input voltage: DC 2.6 - 3.6V</div><div><span style="font-size: medium;">output voltage: DC 3.7V±3%Maximum output : 3.7V/1200MA(See the table below for details)</div><span style="font-size:16px;font-family:Arial;">&nbsp;<strong>Output 5V :</strong>Input voltage: DC 2.6 ~ 4.5V<span style="font-size:16px;font-family:Arial;">Output voltage: DC 5V±3%Maximum output : 5V/1200MA<span style="font-size:16px;font-family:Arial;">&nbsp;<strong>Output 12V :</strong>Input voltage: DC 2.6 ~ 6V<span style="font-size:16px;font-family:Arial;">Output voltage: DC 12V±3%Maximum output : 12V/500MA <strong><span style="font-size:16px;font-family:Arial;">Package list:</strong><span style="font-size:16px;font-family:Arial;">1 * Module <strong><span style="font-size:16px;font-family:Arial;">Note:</strong><span style="font-size:16px;font-family:Arial;"> This is a DC - DC voltage converter module, please pay attention when using:<span style="font-size:16px;font-family:Arial;"> 1, The input voltage should not be higher than maximum input range.<span style="font-size:16px;font-family:Arial;"> 2, The output power cannot be higher than the maximum load for a long time.<span style="font-size:16px;font-family:Arial;"> 3, The input power must be higher than output power, because of the power consumption of the module itself.<span style="font-size:16px;font-family:Arial;"> FAQ:<span style="font-size:16px;font-family:Arial;"> Q: Why the output voltage is lower than the nominal voltage?<span style="font-size:16px;font-family:Arial;"> A :Because the input power is too low.Use a multimeter to test the input voltage, the input voltage is very low at this time. <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style></div>