LM2596 Voltage Regulator + Led Voltmeter DC--DC Buck Step Down Converter Module DC--DC Buck Step Down Converter Module LM2596 Voltage Regulator + Led Voltmeter Output voltage range:1.25V - 37V (decompression mode, input output must be greater than 2 V above). Output current: 2 A continuous output. Ripple frequency: 150 KHZ. Grain wave peak: 100 mv.