LTC3129 datasheet(22/30 Pages) LINER

Part #	LTC3129

Description	15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3關A Quiescent Current

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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22 / 30 page

LTC3129

3129fc

For more information www.linear.com/LTC3129

that allows VCC to be driven above its nominal regulation

level with only a very slight amount of reverse current.

Please note that the bootstrapping supply (either VOUT or

a separate regulator) must be limited to less than 5.7V so

as not to exceed the maximum VCC voltage of 5.5V after

the diode drop.

By maintaining VCC above its UVLO threshold,

bootstrapping, even to a 3.3V output, also allows opera-

tion down to the VIN 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/

applicaTions inForMaTion

Figure 6. Example of VCC Bootstrap

3129 F06

LTC3129

VOUT

BAT54

COUT

VCC

2.2µF

LTC3129 Datasheet(PDF) 22 Page - Linear Technology