LT3591
Production
The LT3591 is a fixed frequency step-up DC/DC converter speci?cally designed to drive up to ten white LEDs in series from a Li-Ion cell. Series connection...
Datasheet
LT3591 on Analog.com
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 10µF instead of an 4.7µF capacitor at the output!
Thanks
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.
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.
Thanks
Hello again,
Hello again,
is it possible to send you an excerpt from our schematic with the LT3591 to check the circuit design?
Please contact the technical support group.
Could You give me an contact, please
You can click on our website "Support" -> "Contact Support" -> Ask a technical support
https://form.analog.com/form_pages/support/integrated/techsupport.aspx