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LTC1754-3.3 Datenblatt(Datasheet) 3 Page - Linear Technology

Teile-Nr. LTC1754-3.3
Beschreibung  Micropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23
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Hersteller  LINER [Linear Technology]
Homepage  http://www.linear.com
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3
LTC1754-3.3/LTC1754-5
TYPICAL PERFOR A CE CHARACTERISTICS LTC1754-3.3, T
A = 25°C unless otherwise noted.
No Load Supply Current
vs Supply Voltage
Output Voltage vs Output Current
Supply Current vs VSHDN
OUTPUT CURRENT (mA)
0
3.30
3.35
80
1754 G01
3.25
3.20
20
40
60
100
3.40
TA = 25°C
COUT = 10µF
CFLY = 1µF
VIN = 2.5V
VIN = 2V
SUPPLY VOLTAGE (V)
2.0
5
10
15
20
2.5
3.0
3.5
4.0
1754 G02
4.5
IOUT = 0µA
CFLY = 1µF
VSHDN = VIN
TA = 85°C
TA = 25°C
TA = – 40°C
VSHDN CONTROL VOLTAGE (V)
1
10
15
5
1754 G03
5
0
2
3
4
20
TA = 25°C
IOUT = 0µA
VIN = 4.5V
VIN = 2.5V
VIN = 2V
Efficiency vs Load Current
VOUT Short-Circuit Current
vs Supply Voltage
SUPPLY VOLTAGE (V)
2.0
60
80
100
120
140
160
180
2.5
3.0
3.5
4.0
1735 G04
4.5
TA = 25°C
CFLY = 1µF
LOAD CURRENT (mA)
0.001
40
50
60
70
80
0.01
0.1
1
10
100
1754 G05
30
20
10
0
90
100
TA = 25°C
VIN = 2V
CFLY = 1µF
Output Ripple
Load Transient Response
Start-Up Time
IOUT
0mA to 20mA
10mA/DIV
VOUT
AC COUPLED
20mV/DIV
VIN = 2V
50
µs/DIV
1754 G07
COUT = 10µF
VOUT
AC COUPLED
20mV/DIV
VIN = 2V
5
µs/DIV
1754 G08
COUT = 10µF
IOUT = 20mA
SHDN
1V/DIV
VOUT
1V/DIV
VIN = 2V
200
µs/DIV
1754 G9
COUT = 10µF




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