LTC3331_15 Datasheet, PDF (31/34 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Charger

LTC3331
APPLICATIONS INFORMATION
T_X
+–
DC
SOURCE
130kHz
TRANSMITTER
300nF
50V
5µH
POWER
47µH
100nF ^270Ω
25V
GND
T_Y
LINEAR TECHNOLOGY
DC1968A
22µF
PART OF DC1969A-B KIT
25V
4.7µF
6.3V
UVLO RISING = 14V
UVLO FALLING = 5V
IPEAK_BB = 5mA
3.45V
Li-ION CAPACITOR
TAIYO YUDEN
200F
1µF
6.3V
1µF
6.3V
V_IN ^AC2
CAP
V_IN2
UV3
UV2
UV1
UV0
BAT_IN
CHARGE
4.3k
LTC3331
AC1
SWA
SWB
SW
V_OUT
SCAP
BAL
PGVOUT
EH_ON
V_IN3
IPK2
IPK1
IPK0
OUT2
BAT_OUT
OUT1
22µF
6.3V
BB_IN
OUT0
FLOAT1 FLOAT0 LBSEL SHIP GND
100µH
22µH
100mF
2.7V
100mF
2.7V
3331 F12
0.1µF
6.3V
2.5V
22µF
6.3V
Figure 12. Wireless Battery Charger
For more information www.linear.com/LTC3331
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