Fuente Dc-Dc Buck Step-Down Tipo Buck Step-Down-UP 3A 24w 4-35V a 1.23-30V Features: DC-DC Buck Converter Step Down Module LM2596 Power Supply Output 1.23V-30V Input voltage: 4V-35V Output voltage: 1.23V-30V Input current: 3A (maximum) Specifications: Conversion efficiency: 92% (highest) Switching frequency: 150KHz Output ripple: 30mA(maxmum) Size 45 * 20 * 14 (L * W * H) (mm)