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LTC3221 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3221
Description  Micropower, Regulated Charge Pump in 2 횞 2 DFN
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3221 Datasheet(HTML) 5 Page - Linear Technology

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LTC3221/
LTC3221-3.3/LTC3221-5
5
3221f
LOAD CURRENT (mA)
0
50
60
90
80
70
80
60
3221 G13
40
30
20
40
100
20
10
0
COUT = 2.2µF
COUT = 4.7µF
VIN = 3V
SUPPLY VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
3221 G21
THEORETICAL MAX
IOUT = 1mA
IOUT = 30mA
2.7
3.0
3.3
3.6
3.9
4.2
4.5
SUPPLY VOLTAGE (V)
2.7
16
14
12
4
2
8
6
10
0
3.0
3.3
3.6
3.9
4.2
4.5
3221 G19
TA = –45°C
TA = 90°C
TA = 25°C
3221 G20
LOAD CURRENT (mA)
0.01
10
1
0.1
0.01
0.001
10
1
0.1
100
VIN = 3V
110
100
90
40
50
70
80
60
120
SUPPLY VOLTAGE (V)
2.7
3.0
3.3
4.2
3.9
3.6
3221 G17
TA = –45°C
TA = 90°C
VOUT = 4.8V
TA = 25°C
3221 G16
LOAD CURRENT (mA)
0
5.10
5.05
5.00
4.95
4.85
4.90
4.80
100
80
60
40
20
120
VIN = 4.2V
VIN = 3.6V
VIN = 2.7V
15
14
13
9
7
11
10
12
5
8
6
TEMPERATURE (
°C)
–50
–25
0
25
75
50
100
3221 G18
VIN = 2.7V
VOUT = 4.5V
Load Regulation
Output Load Capability at 4%
Below Regulation
Effective Open-Loop Output
Resistance vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS (LTC3221-5 only)
No-Load Input Current vs
Supply Voltage
Extra Input Current vs Load
Current (IIN-2 ILOAD)
Efficiency vs Supply Voltage
Output Ripple vs Load Current
Output Ripple
Load Transient Response
VIN = 3V
ILOAD = 60mA
COUT = 4.7µF, 6.3V, SIZE 0603
3221 G23
1
µs/DIV
VOUT
50mV/DIV
(AC-COUPLED)
VIN = 3V
ILOAD = 0mA TO 60mA STEP
COUT = 4.7µF, 6.3V, SIZE 0603
3221 G24
5
µs/DIV
VOUT
50mV/DIV
(AC-COUPLED)
60mA
IOUT
0mA



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