ขาย 5PCS โมดูลเพาเวอร์ซัพพลาย 5 Lm 317 Dc - Dc Step - Down Dc ราคาที่ดีที่สุด

Module introduction: Name: adjustable linear voltage regulator Output current: 1.5a (minimum), 2.2a (typical) Input/output voltage difference (vi-vo) : 40Vdc(maximum) Output adjustable voltage range: 1.2 ~ 37V Working temperature: 55 ° C to + 150 ° C Current output: 1.5a Voltage input: 4.2 ~ 40 V Working temperature: 0 ° C to 125 ° C Characteristic frequency: 100 (MHz) Module size: 35.6(mm)x16.8(mm) Input mode: VIN input positive level, GND input negative pole Output mode: VOUT output positive level, GND output negative pole Maximum output current: maximum output current =3/(input voltage - output voltage) In order to improve the efficiency, it is better to have a voltage difference of 3V between input and output. However, the maximum voltage difference between input and output should not exceed 30V, that is, input-output 30V, otherwise it is easy to burn the module. As it is a linear step-down dc-dc circuit, the input voltage shall be more than 3V higher than the output voltage to ensure the stability of the output voltage. Input voltage: 40v-4.5v (the highest limit measured in our store can reach 40V), Adjustment mode: firstly connect the input power correctly (between 40-4.5), then use a multimeter to monitor the output voltage and adjust the potentiometer (generally turn to boost voltage in advance, turn to decrease voltage in reverse). Tips: when adjusting the voltage, please pay attention to adjust the required voltage in the absence of load We deal in wholesale and retail Feel free to contact us #LM317 #DC-DC #Step-down #Converter #Power #Module