LTC3129_15 Datasheet, PDF (22/30 Pages) Linear Technology – 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3A Quiescent Current

LTC3129
APPLICATIONS INFORMATION
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).
V_OUT
LTC3129
C_OUT
V_OUT
BAT54
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
http://www.ixys.com/ProductPortfolio/GreenEnergy.aspx
Corporation
G24
http://www.g24i.com/
Innovations
SolarPrint http://www.solarprint.ie/
V_CC
2.2µF
3129 F06
Figure 6. Example of V_CC Bootstrap
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For more information www.linear.com/LTC3129
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