Datasheet

LTC3129
22
3129fa
For more information www.linear.com/LTC3129
that allows V
CC
to be driven above its nominal regulation
level with only a very slight amount of reverse current.
Please note that the bootstrapping supply (either V
OUT
or
a separate regulator) must be limited to less than 5.7V so
as not to exceed the maximum V
CC
voltage of 5.5V after
the diode drop.
By maintaining V
CC
above its UVLO threshold, bootstrap-
ping, even to a 3.3V output, also allows operation down
to the V
IN
UVLO threshold of 1.8V (typical).
Sources of Small Photovoltaic Panels
A list of companies that manufacture small solar panels
(sometimes referred to as modules or solar cell arrays)
suitable for use with the LTC3129 is provided in Table 3.
Table 3. Small Photovoltaic Panel Manufacturers
Sanyo http://panasonic.net/energy/amorton/en/
PowerFilm http://www.powerfilmsolar.com/
Ixys
Corporation
http://www.ixys.com/ProductPortfolio/GreenEnergy.aspx
G24
Innovations
http://www.g24i.com/
SolarPrint http://www.solarprint.ie/
applicaTions inForMaTion
Figure 6. Example of V
CC
Bootstrap
3129 F06
LTC3129
V
OUT
V
OUT
BAT54
C
OUT
V
CC
2.2µF