Step-Down Voltage Regulator D36V6AHV

• input voltage: 4 V to 50 V (note: the input voltage should be at least a few volts above the output voltage)
• output adjustable from 4 V to 25 V
  
• maximum output current of 600 mA
  
• 500 kHz switching frequency
• 2 mA typical no-load quiescent current (20 μA typical quiescent current with SHDN = 0V)
• integrated over-temperature and over-current shutoff
• size: 15 × 10 × 4 mm
• weight: 0.6 g
  
  

Connections

The buck regulator has four connections: shutdown (SHDN), input voltage (VIN), ground (GND), and output voltage (VOUT).

The SHDN pin can be driven low (under 0.3 V) to turn off the output and put the board into a low-power state that typically draws 20 μA, and it can be driven high (above 2.3 V) to enable the board. If you do not need to use the shutdown feature, the SHDN pin can be directly connected to VIN to permanently enable the board. You should not leave this pin disconnected as this can result in unpredictable behavior.

The input voltage, VIN, should be between 4 V and 50 V. If the input voltage gets too close to the output voltage, the output will start to drop, so you should ensure that VIN is at least a few volts above VOUT. You should also ensure that noise on your input does not exceed the 50 V maximum, and you should be wary of destructive LC spikes (see below for more information).