LTC3388-1_15 Datasheet, PDF (20/20 Pages) Linear Technology – 20V High Efficiency Nanopower Step-Down Regulator

LTC3388-1/LTC3388-3
TYPICAL APPLICATION
Piezoelectric Energy Harvester with Dual, ±3.3V Outputs
PZ1
PZ2
V_IN
PGOOD
1μF
6V
LTC3588-1
22μH 3.3V
10μF
CAP
SW
25V
V_IN2
V_OUT
47μF
D1
6V
4.7μF
6V
D0
GND
1μF
6V
2.2μF
10V
4.7μF
6V
V_IN
PGOOD
CAP ^LTC3388-3
*
V_IN2
SW
EN
V_OUT
D1
D0
GND ^STBY
22μH
* EXPOSED PAD MUST BE ELECTRICALLY ISOLATED FROM
SYSTEM GROUND AND CONNECTED TO THE –3.3V RAIL.
47μF
6V
–3.3V
338813 TA02
RELATED PARTS
PART NUMBER
LT1389
LTC1540
LT3009
LTC3588-1
LTC3588-2
LT3652
LT3970
LT3971
LT3991
LTC3631
LTC3642
DESCRIPTION
Nanopower Precision Shunt Voltage Reference
Nanopower Comparator with Reference
3μA I_Q, 20mA Low Dropout Linear Regulator
Piezoelectric Energy Harvesting Power Supply
Piezoelectric Energy Harvesting Power Supply
Power Tracking 2A Battery Charger for Solar Power
40V, 350mA Step-Down Regulator with 2.5μA I_Q
38V, 1.2A, 2MHz Step-Down Regulator with 2.8μA I_Q
55V, 1.2A 2MHz Step-Down Regulator with 2.8μA I_Q
45V, 100mA, Synchronous Step-Down Regulator with 12μA I_Q
45V, 50mA, Synchronous Step-Down Regulator with 12μA I_Q
COMMENTS
800nA Operating Current, 1.25V/2.5V/4.096V
0.3μA I_Q, Drives 0.01μF, Adjustable Hysteresis, 2V to 11V Input Range
Low 3μA I_Q, 1.6V to 20V Range, 20mA Output Current
<1μA I_Q in Regulation, 2.7V to 20V Input Range,
Integrated Bridge Rectifier
<1μA I_Q in Regulation, UVLO Rising = 16V, UVLO Falling = 14V,
V_OUT = 3.45V, 4.1V, 4.5V, 5.0V
MPPT for Solar, 4.95V to 32V, Up to 2A Charge Current
Integrated Boost and Catch Diodes, 4.2V to 40V Operating Range
4.3V to 38V Operating Range, Low Ripple Burst Mode^® Operation
4.3V to 55V Operating Range, Low Ripple Burst Mode Operation
4.5V to 45V Operating Range, Overvoltage Lockout Up to 60V
4.5V to 45V Operating Range, Overvoltage Lockout Up to 60V
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
338813f
LT 0710 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2010