LTC3588-2
Nanopower Energy
Harvesting Power Supply
with 14V Minimum V
IN
FEATURES DESCRIPTION
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1500nA Input Quiescent Current (Output in The LTC 3588-2 integrates a low-loss full-wave bridge
Regulation No Load, V = 18V) rectifier with a high efficiency buck converter to form a
IN
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830nA Input Quiescent Current in UVLO, V = 12V complete energy harvesting solution optimized for high
IN
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14V to 20V Input Operating Range output impedance energy sources such as piezoelectric,
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Integrated Low-Loss Full-Wave Bridge Rectifier solar, or magnetic transducers.
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16V UVLO Improves Power Utilization from High
An ultralow quiescent current undervoltage lockout (UVLO)
Voltage Current Limited Inputs
mode with a 16V rising threshold enables efficient energy
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Up to 100mA of Output Current
extraction from sources with high open circuit voltages.
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High Efficiency Integrated Hysteretic Buck DC/DC
This energy is transferred from the input capacitor to the
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Selectable Output Voltages: 3.45V, 4.1V, 4.5V, 5.0V
output via a high efficiency synchronous buck regulator.
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Input Protective Shunt Up to 25mA Pull-Down at
The 16V UVLO threshold also allows for input to output
V 20V
IN
current multiplication through the buck regulator. The
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Available in 10-Lead MSE and 3mm 3mm DFN
buck features a sleep state that minimizes both input and
Packages
output quiescent currents while in regulation.
Four output voltages of 3.45V, 4.1V, 4.5V and 5.0V are
APPLICATIONS
pin selectable with up to 100mA of continuous output
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Piezoelectric Energy Harvesting
batteries as well as
current, and suit Li-Ion and LiFePO
4
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Electro-Mechanical Energy Harvesting
supercapacitors. An input protective shunt set at 20V
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Low Power Battery Charging
provides overvoltage protection.
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Wireless HVAC Sensors
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
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Mobile Asset Tracking
owners.
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Tire Pressure Sensors
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Battery Replacement for Industrial Sensors
TYPICAL APPLICATION
High Voltage Piezoelectric Energy Harvesting Power Supply LTC3588-2 5.0V Regulator Start-Up Profile
20
C = 10F, C = 47F
IN STORAGE V
IN
18 NO LOAD, I = 2A
VIN
16
MIDE V25W
14
PZ1 PZ2
22H
12
V SW V
IN OUT
LTC3588-2
1F
C 10
V STORAGE
OUT
6V
6V
8
CAP PGOOD
10F
2
OUTPUT
V
V D0, D1 6 OUT
25V
IN2
VOLTAGE
GND
4.7F SELECT
4
35882 TA01
6V
2
PGOOD = LOGIC 1
0
0 200 400 600
TIME (sec)
35882 TA01b
35882fc
1
For more information www.linear.com/LTC3588-2
VOLTAGE (V)LTC3588-2
ABSOLUTE MAXIMUM RATINGS (Note 1)
V V .................. 0.3V to [Lesser of (V + 0.3V) or 6V]
IN OUT IN
Low Impedance Source ....................... 0.3V to 18V* PGOOD ............0.3V to [Lesser of (V + 0.3V) or 6V]
OUT
Current Fed, I = 0A ...................................... 25mA I , I ............................................................. 50mA
SW PZ1 PZ2
PZ1, PZ2 ...........................................................0V to V I ...................................................................... 350mA
IN SW
D0, D1 ..............0.3V to [Lesser of (V + 0.3V) or 6V] Operating Junction Temperature Range
IN2
CAP ......................[Higher of 0.3V or (V 6V)] to V (Notes 2, 3) ................................................40 to 125C
IN IN
V ................... 0.3V to [Lesser of (V + 0.3V) or 6V] Storage Temperature Range ......................65 to 125C
IN2 IN
Lead Temperature (Soldering, 10 sec)
* V has an internal 20V clamp
IN
For t < 1ms and Duty Cycle < 1%, MSE Only ..........................................................300C
Absolute Maximum Continuous Current = 5mA
PIN CONFIGURATION
TOP VIEW
TOP VIEW
PZ1 1 10 PGOOD
10 PGOOD
PZ1 1
PZ2 2 9 D0
9 D0
PZ2 2
11
11
8 D1
CAP 3 8 D1 CAP 3
GND
GND
7 V
V 4
IN IN2
V 4 7 V
IN IN2
6 V
SW 5
OUT
SW 5 6 V
OUT
MSE PACKAGE
10-LEAD PLASTIC MSOP
DD PACKAGE
T = 125C, = 45C/W, = 10C/W
JMAX JA JC
10-LEAD (3mm 3mm) PLASTIC DFN
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
T = 125C, = 43C/W, = 7.5C/W
JMAX JA JC
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 40C to 125C
LTC3588IDD-2#PBF LTC3588IDD-2#TRPBF LFYK 10-Lead (3mm 3mm) Plastic DFN 40C to 125C
LTC3588EMSE-2#PBF LTC3588EMSE-2#TRPBF LTFYM 10-Lead Plastic MSOP 40C to 125C
LTC3588IMSE-2#PBF LTC3588IMSE-2#TRPBF LTFYM 10-Lead Plastic MSOP 40C to 125C
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: