LTC3109
24
3109fb
For more information www.linear.com/LTC3109
relaTeD parTs
Typical applicaTion
Unipolar TEG Energy Harvester for Low Resistance/High Current Inputs,
Using External Charge Pump Rectifiers
GND
10µF
2.2V
LTC3109
3.3V
V
OUT
V
OUT2
SWITCHED V
OUT
GOES HIGH
WHEN PGOOD IS HIGH
VLDO
3109 TA05
C1A
VAUX
BAS31
1.0µF
1nF
2.2µF
0.1µF
+
70mV TO 1V
COILCRAFT
LPR6235-253PML
1:20
• •
V
OUT2
C2A
C1B
C2B
SWB
V
INB
VS1
VS2
SWA
V
INA
V
OUT
VLDO
PG00D PG00D
V
OUT2_EN
VSTOREVAUX
VAUX
C
OUT
+
C
STORE
+
PART NUMBER DESCRIPTION COMMENTS
LTC3108/
LTC3108-1
Ultralow Voltage Step-Up Converter and
Power Manager
V
IN
: 0.02V to 1V, V
OUT
= 2.2V, 2.35V, 3.3V, 4.1V, 5V, I
Q
= 6µA,
4mm × 3mm DFN-12, SSOP-16; LTC3108-1 V
OUT
= 2.2V, 2.5V, 3V, 3.7V, 4.5V
LTC4070 Micropower Shunt Battery Charger 1% Float Voltage Accuracy, 50mA Max Shunt Current, V
OUT
= 4.0V, 4.1V, 4.2V,
I
Q
= 450nA, 2mm × 3mm DFN-8, MSOP-8
LTC1041 Bang-Bang Controller V
IN
: 2.8V to 16V; V
OUT(MIN)
= Adj; I
Q
= 1.2mA; I
SD
< 1µA; SO-8 Package
LTC1389 Nanopower Precision Shunt Voltage Reference V
OUT(MIN)
= 1.25V; I
Q
= 0.8µA; SO-8 Package
LT1672/LT1673/
LT1674
Single-/Dual-/Quad-Precision 2µA Rail-to-Rail
Op Amps
SO-8, SO-14 and MSOP-8 Packages
LT3009 3µA I
Q
, 20mA Linear Regulator V
IN
: 1.6V to 20V; V
OUT(MIN)
: 0.6V to Adj, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V,
5V to Fixed; I
Q
= 3µA; I
SD
< 1µA; 2mm × 2mm DFN-8 and SC70 Packages
LTC3588-1 Piezoelectric Energy Generator with Integrated
High Efficiency Buck Converter
V
IN
: 2.7V to 20V; V
OUT(MIN)
: Fixed to 1.8V, 2.5V, 3.3V, 3.6V; I
Q
= 0.95µA;
3mm × 3mm DFN-10 and MSOP-10E Packages
LT8410/LT8410-1 Micropower 25mA/8mA Low Noise Boost Converter
with Integrated Schottky Diode and Output
Disconnect
V
IN
: 2.6V to 16V; V
OUT(MIN)
= 40V
MAX
; I
Q
= 8.5µA; I
SD
< 1µA;
2mm × 2mm DFN-8 Package
I
VOUT
vs V
IN
V
IN
(mV)
0
I
VOUT
(mA)
8
12
800
3109 TA05b
4
0
200
400
600
100
300
500
700
16
6
10
2
14
1:20 RATIO
C1 = 1µF
EXTERNAL DIODES
TYPICAL
V
IN
(mV)
10
0
EFFICIENCY (%)
10
20
30
40
100 1000
3109 TA05c
50
5
15
25
35
45
Efficiency vs V
IN
LINEAR TECHNOLOGY CORPORATION 2010
LT 0813 REV B • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC3109
