Data Sheet
NCP1402
http://onsemi.com
16
Output Capacitor
The output capacitor is used for sustaining the output
voltage when the internal MOSFET is switched on and
smoothing the ripple voltage. Low ESR capacitor should be
used to reduce output ripple voltage. In general, a 47 uF to
68 uF low ESR (0.15 to 0.30 ) Tantalum capacitor
should be appropriate. For applications where space is a
critical factor, two parallel 22 uF low profile SMD ceramic
capacitors can be used.
An evaluation board of NCP1402 has been made in the
size of 23 mm x 20 mm only, as shown in Figures 60 and 61.
Please contact your ON Semiconductor representative for
availability. The evaluation board schematic diagram, the
artwork and the silkscreen of the surface mount PCB are
shown below:
20 mm
20 mm
Figure 60. NCP1402 PFM Step-Up DC-DC Converter Evaluation Board Silkscreen
Figure 61. NCP1402 PFM Step-Up DC-DC Converter Evaluation Board Artwork (Component Side)
23 mm
23 mm