This application note introduces the STLD40D, a white LED power supply. It is a switching boost regulator that operates from 3.0 V to 5.5 V and can provide an output voltage as high as 37 V and can drive up to 10 white LEDs in series.
The document provides an application note dedicated to the STLD40D, a PFM inductor switcher designed as a white LED power supply. It operates from an input voltage of 3.0 V to 5.5 V and can drive up to 10 white LEDs in series with an output voltage as high as 37 V.
The device can provide an output voltage as high as 37 Vdc.
It is capable of driving up to 10 white LEDs in series.
The application recommends a minimum input capacitor of 2.2 uF / 6.3 V and an output capacitor of 4.7 uF / 40 V.