LTC3330_15 Datasheet, PDF (14/32 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender

LTC3330
BLOCK DIAGRAM
10 ^VIN
20V
AC1
8
UVLO
UVLO_SET
INTERNAL
RAIL
GENERATION
AC2
9
26 ^VIN3
V_REF
BANDGAP
REFERENCE
BAT
16
V_IN3
EH_ON
29
V_IN2 BAT V_OUT
PGVOUT ^VMAX
+
28
–
V_MAX
PGLDO
–
27
+
SLEEP
PRIORITIZER
BUCK
CONTROL
ILIM_SET
BUCK-BOOST
CONTROL
V_REF –
SLEEP
+
SLEEP
0.925*V_REF
0.9*V_REF
V_REF –
+
UVLO_SET
ILIM_SET
V_IN2
V_IN3
V_IN3
LDO_IN
CAP
11
SW
12
V_IN2
3
GND
33
SWA
15
SWB
14
V_OUT
13
LDO_EN ₂₅
LDO_IN ₂₁
LDO_OUT ₂₀
SCAP
2
+
BAL
1
–
4
3
3
3
UV[3:0]
IPK[2:0]
OUT[2:0]
LDO[2:0]
4, 5, 6, 7
19, 18, 17
32, 31, 30
22, 23, 24
3330 BD
14
For more information www.linear.com/LTC3330
3330fb