LT3591

Question

Hello, 
 I've a question about the device LT3591 . 
 Page 11 of the data sheet shows a design example with a separate power supply for VIN and the inductor (SW). 
 Both voltages are about 3.3V. 
 Can I use this design with input voltages of 3.3V for Vin and 15V for the inductor path? 
 And is there are problem to use a 10&micro;F instead of an 4.7&micro;F capacitor at the output! 
 
 Thanks

ADIApproved · Accepted Answer

You can do that. The voltage of Vin and the power supply connected to the SW does not need to be the same. 
 Output cap changes the transient response of the circuit. In most cases, bigger output cap will reduce the voltage overshoot while increases the transient time. In this application, a 10uF cap can be used.)

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