LTC3129-1_15 Datasheet, PDF (30/30 Pages) Linear Technology – 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3A Quiescent Current

LTC3129-1
Typical Application
TEG Powered Converter Operates from a 10°C Temperature Differential and Provides 3.3V at 25mA
for 50ms Every 15 Seconds for a Wireless Sensor
COILCRAFT
LPR6235-123QML 33nF
1:50
+
220µF _{• •}
1nF
MARLOW NL1025T
TEG MOUNTED TO
330k
A HEAT SINK WITH
LESS THAN 15°C/W
THERMAL RESISTANCE
1µF
C1A
C1B
C2A
C2B
SWA
SWB
V_INA
V_INB
VS2
VS1
V_AUX
V_{STORE +}
470µF
6.3V
LTC3109
V_OUT2
V_{OUT2_EN}
V_OUT
PGOOD
VLDO
V_AUX
V_AUX
22nF _4.7µH 22nF
1µF
3.01M
BST1 SW1
SW2 BST2
V_IN
V_OUT
LTC3129-1
10pF
1N4148
1M
1M ^VCC
RUN
MPPC
PWM
VS1
VS2
VS3 _GND
PGOOD
V_CC
PGND
1M
10µF
PGOOD
BAT54
2.2µF
V_OUT
3.3V
31291 TA08
Related Parts
PART NUMBER
LTC3103
LTC3104
LTC3105
DESCRIPTION
15V, 300mA Synchronous Step-Down DC/DC Converter with
Ultralow Quiescent Current
15V, 300mA Synchronous Step-Down DC/DC Converter with
Ultralow Quiescent Current and 10mA LDO
400mA Step-up Converter with MPPC and 250mV Start-Up
LTC3112
15V, 2.5A, 750kHz Monolithic Synch Buck/Boost
LTC3115-1
40V, 2A, 2MHz Monolithic Synch Buck/Boost
LTC3531
5.5V, 200mA, 600kHz Monolithic Synch Buck/Boost
LTC3388-1/
LTC3388-3
LTC3108/
LTC3108-1
LTC3109
LTC3588-1
20V, 50mA High Efficiency Nano Power Step-Down Regulator
Ultralow Voltage Step-Up Converter and Power Manager
Auto-Polarity, Ultralow Voltage Step-Up Converter and Power
Manager
Piezo Electric Energy Harvesting Power Supply
LTC4070
Li-Ion/Polymer Low Current Shunt Battery Charger System
COMMENTS
V_IN(MIN) = 2.2V, V_IN(MAX) = 15V, V_OUT(MIN) = 0.8V, I_Q = 1.8µA,
I_SD <1µA, 3mm × 3mm DFN-10, MSOP-10 Packages
V_IN(MIN) = 2.2V, V_IN(MAX) = 15V, V_OUT(MIN) = 0.8V, I_Q = 2.8µA,
I_SD <1µA, 4mm × 3mm DFN-14, MSOP-16 Packages
V_IN(MIN) = 0.2V, V_IN(MAX) = 5V, V_OUT(MIN) = 0 5.25V_MAX, I_Q = 22µA,
I_SD <1µA, 3mm × 3mm DFN-10/MSOP-12 Packages
V_IN(MIN) = 2.7V, V_IN(MAX) = 15V, V_OUT(MIN) = 2.7V to 14V, I_Q = 50µA,
I_SD <1µA, 4mm × 5mm DFN-16 TSSOP-20E Packages
V_IN(MIN) = 2.7V, V_IN(MAX) = 40V, V_OUT(MIN) = 2.7V to 40V, I_Q = 50µA,
I_SD <1µA, 4mm × 5mm DFN-16 and TSSOP-20E Packages
V_IN(MIN) = 1.8V, V_IN(MAX) = 5.5V, V_OUT(MIN) = 2V to 5V, I_Q = 16µA,
I_SD <1µA, 3mm × 3mm DFN-8 and ThinSOT Packages
V_IN(MIN) = 2.7V, V_IN(MAX) =20V, V_OUT(MIN) = Fixed 1.1V to 5.5V,
I_Q = 720nA, I_SD = 400nA, 3mm × 3mm DFN-10, MSOP-10 Packages
V_IN(MIN) = 0.02V, V_IN(MAX) = 1V, V_OUT(MIN) = Fixed 2.35V to 5V,
I_Q = 6µA, I_SD <1µA, 3mm × 4mm DFN-12, SSOP-16 Packages
V_IN(MIN) = 0.03V, V_IN(MAX) = 1V, V_OUT(MIN) = Fixed 2.35V to 5V,
I_Q = 7µA, I_SD <1µA, 4mm × 4mm QFN-20, SSOP-20 Packages
V_IN(MIN) = 2.7V, V_IN(MAX) = 20V, V_OUT(MIN) = Fixed 1.8V to 3.6V,
I_Q = 950nA, I_SD 450nA, 3mm × 3mm DFN-10, MSOP-10E Packages
V_IN(MIN) = 450nA to 50mA, V_FLOAT + 4.0V, 4.1V, 4.2V, I_Q = 300nA,
2mm × 3mm DFN-8, MSOP-8 Packages
31291fb
30 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95_F0_o3_{r m}5-_o7_r4_e 1_in7_{formation www.linear.com/LTC3129-1}
[phone] ^● FAX: [phone] ^● www.linear.com/3129-1
LT 1014 REV B • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2013