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Linear Technology Electronic Components Datasheet

LTC3588EMSE-2 Datasheet

Piezoelectric Energy Harvesting Power Supply

No Preview Available !

FEATURES
nn 1500nA Input Quiescent Current (Output in
Regulation – No Load, VIN = 18V)
nn 830nA Input Quiescent Current in UVLO, VIN = 12V
nn 14V to 20V Input Operating Range
nn Integrated Low-Loss Full-Wave Bridge Rectifier
nn 16V UVLO Improves Power Utilization from High
Voltage Current Limited Inputs
nn Up to 100mA of Output Current
nn High Efficiency Integrated Hysteretic Buck DC/DC
nn Selectable Output Voltages: 3.45V, 4.1V, 4.5V, 5.0V
nn Input Protective Shunt – Up to 25mA Pull-Down at
VIN ≥ 20V
nn Available in 10-Lead MSE and 3mm × 3mm DFN
Packages
APPLICATIONS
nn Piezoelectric Energy Harvesting
nn Electro-Mechanical Energy Harvesting
nn Low Power Battery Charging
nn Wireless HVAC Sensors
nn Mobile Asset Tracking
nn Tire Pressure Sensors
nn Battery Replacement for Industrial Sensors
LTC3588-2
Nanopower Energy
Harvesting Power Supply
with 14V Minimum VIN
DESCRIPTION
The LTC®3588-2 integrates a low-loss full-wave bridge
rectifier with a high efficiency buck converter to form a
complete energy harvesting solution optimized for high
output impedance energy sources such as piezoelectric,
solar, or magnetic transducers.
An ultralow quiescent current undervoltage lockout (UVLO)
mode with a 16V rising threshold enables efficient energy
extraction from sources with high open circuit voltages.
This energy is transferred from the input capacitor to the
output via a high efficiency synchronous buck regulator.
The 16V UVLO threshold also allows for input to output
current multiplication through the buck regulator. The
buck features a sleep state that minimizes both input and
output quiescent currents while in regulation.
Four output voltages of 3.45V, 4.1V, 4.5V and 5.0V are
pin selectable with up to 100mA of continuous output
current, and suit Li-Ion and LiFePO4 batteries as well as
supercapacitors. An input protective shunt set at 20V
provides overvoltage protection.
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners.
TYPICAL APPLICATION
High Voltage Piezoelectric Energy Harvesting Power Supply
10µF
25V
1µF
6V
4.7µF
6V
MIDE V25W
PZ1
PZ2
VIN LTC3588-2 SW
VOUT
CAP
PGOOD
VIN2
D0, D1
GND
35882 TA01
22µH
2 OUTPUT
VOLTAGE
SELECT
VOUT
CSTORAGE
6V
LTC3588-2 5.0V Regulator Start-Up Profile
20
CIN = 10µF, CSTORAGE = 47µF
18 NO LOAD, IVIN = 2µA
VIN
16
14
12
10
8
6
VOUT
4
2
PGOOD = LOGIC 1
0
0
200
400
600
TIME (sec)
35882 TA01b
For more information www.linear.com/LTC3588-2
35882fc
1


Linear Technology Electronic Components Datasheet

LTC3588EMSE-2 Datasheet

Piezoelectric Energy Harvesting Power Supply

No Preview Available !

LTC3588-2
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN
Low Impedance Source........................ –0.3V to 18V*
Current Fed, ISW = 0A....................................... 25mA
PZ1, PZ2............................................................0V to VIN
D0, D1...............–0.3V to [Lesser of (VIN2 + 0.3V) or 6V]
CAP....................... [Higher of –0.3V or (VIN – 6V)] to VIN
VIN2.................... –0.3V to [Lesser of (VIN + 0.3V) or 6V]
* VIN has an internal 20V clamp
For t < 1ms and Duty Cycle < 1%,
Absolute Maximum Continuous Current = 5mA
VOUT................... –0.3V to [Lesser of (VIN + 0.3V) or 6V]
PGOOD.............–0.3V to [Lesser of (VOUT + 0.3V) or 6V]
IPZ1, IPZ2.............................................................. ±50mA
ISW....................................................................... 350mA
Operating Junction Temperature Range
(Notes 2, 3)................................................. –40 to 125°C
Storage Temperature Range....................... –65 to 125°C
Lead Temperature (Soldering, 10 sec)
MSE Only........................................................... 300°C
PIN CONFIGURATION
TOP VIEW
PZ1 1
PZ2 2
CAP 3
VIN 4
SW 5
10 PGOOD
9 D0
11
GND
8 D1
7 VIN2
6 VOUT
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 43°C/W, θJC = 7.5°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
PZ1 1
10 PGOOD
PZ2 2
CAP 3
VIN 4
11
GND
9 D0
8 D1
7 VIN2
SW 5
6 VOUT
MSE PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3588EDD-2#PBF
LTC3588EDD-2#TRPBF LFYK
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3588IDD-2#PBF
LTC3588IDD-2#TRPBF LFYK
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3588EMSE-2#PBF LTC3588EMSE-2#TRPBF LTFYM
10-Lead Plastic MSOP
–40°C to 125°C
LTC3588IMSE-2#PBF
LTC3588IMSE-2#TRPBF LTFYM
10-Lead Plastic MSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping
container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
35882fc
2
For more information www.linear.com/LTC3588-2


Part Number LTC3588EMSE-2
Description Piezoelectric Energy Harvesting Power Supply
Maker Linear
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