Constant Current Voltage LED Driver Batery Charging Module LM2596 1.25~30V

1.Charging for lithium battery: When the battery is under low voltage, it will be burned if we charge it with constant voltage. So we should charge it with constant current.
2.Driver high power LED: The power of one LED is limited, when we need higher brightness, we can use this module to achieve constant current drive for multiple LEDs.Any other occasions which need constant current input.Output voltage: 7~35V    Input voltage: 1.25~30VOutput current: Max 3ATransfer efficiency: 92%(Max)Switching frequency: 150KHz Product size: 48mm(L)*23mm(W)*14mm(H)

Product Description
LM2596 Constant Current for LED Driver Lithium-ion Battery Power Supply Module
Premium quality LM2596 chip with high efficiency and low heat output
With the use of low ESR YUAN loaded Sanyo filter capacitor, make the ripple voltage as low as 50mV
Can easily reach 3A or more current, stable performance
High quality material, durable to use
The output ripple: 20M bandwidth (for reference only)
Input 12V output 5V 3A 60mV (MAX)
Working temperature: industrial grade (- 40 — + 85 celsius degree) (when temperature is more than 40 degrees, please reduce power, or enhance heat dissipation)
Full load temperature rise: 45 celsius degree
No-load current: 10mA typical (12V to 4.2V)
Load regulation: ± 1%
Voltage regulation: ± 0.5%
Dynamic response speed: 5% 200uS
Output short circuit protection: yes, constant current (current setting constant current value)
Connection mode: can lead directly welding on the PCB