LM317 Buck Voltage Converter Regulated Power Supply Module DC 24V to DC 12V LED Display Voltmeter Volt Regulator DC 0-35V/AC 0-28V to DC 1.25-32V Step Down Voltage Tansformer with Heat Sink

LM317 is three-terminal adjustable regulator integrated circuit early made by National Semiconductor and widely used in many integrated circuit manufacturers. Easily use , it just need two external resistance to set output voltage. Besides, its linear adjusting ratio and rejection ratio is better than the standard fixed regulators. Parameter? Input voltage: DC 35V(Max), AC 28V(Max). Output voltage: DC 1.25~32V, can adjust continuously. The max voltage error: DC 40V The min voltage error: DC 3V Output current: 5mA~1.5A Load current: recommend 5mA~3A Short-circuit current: 4~4.5A Internal protection: over-heat, over-load, short-circuit External protection: the external adds load protection to protect circuit. Working temperature: -10~+85? Save temperature?-65?~+150? Typical linear adjusting ratio: 0.01% Typical load adjusting ratio: 0.1% Ripple rejection ratio: 80dB Product size: 76*57*33mm Package Includes: 1 x Parallel Type Voltage Regulated Power Panel