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LTC3221 Datasheet(PDF) 4 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) 4 Page - Linear Technology

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LTC3221/
LTC3221-3.3/LTC3221-5
4
3221f
LOAD CURRENT (mA)
0
50
60
70
80
60
3221 G13
40
30
20
40
100
20
10
0
COUT = 2.2µF
COUT = 4.7µF
SUPPLY VOLTAGE (V)
1.8
100
90
80
70
60
50
40
30
20
10
0
2.2
2.6
2.8
2.0
2.4
3.0
3.2
3221 G12
THEORETICAL MAX
IOUT = 1mA
IOUT = 30mA
3221 G11
LOAD CURRENT (mA)
0.01
10
1
0.1
0.01
0.001
10
1
0.1
100
VIN = 2.5V
SUPPLY VOLTAGE (V)
1.5
16
14
12
4
2
8
6
10
0
2.0
2.5
3.0
3.5
4.0
4.5
3221 G10
TA = –45°C
TA = 90°C
TA = 25°C
15
14
13
9
7
11
10
12
5
8
6
TEMPERATURE (
°C)
–50
–25
0
25
75
50
100
3221 G09
VIN = 1.8V
VOUT = 3V
3221 G07
LOAD CURRENT (mA)
0
3.36
3.34
3.32
3.30
3.24
3.26
3.28
3.22
3.20
3.18
3.16
100
80
60
40
20
120
VIN = 3.2V
VIN = 2.5V
VIN = 1.8V
110
100
90
40
50
70
80
60
120
SUPPLY VOLTAGE (V)
1.5
2.0
2.5
3.5
3.0
3221 G08
TA = –45°C
TA = 90°C
VOUT = 3.168V
TA = 25°C
VIN = 2V
ILOAD = 60mA
COUT = 4.7µF, 6.3V, SIZE 0603
3221 G14
1
µs/DIV
VOUT
20mV/DIV
(AC-COUPLED)
VIN = 2V
ILOAD = 0mA TO 60mA STEP
COUT = 4.7µF, 6.3V, SIZE 0603
3221 G15
5
µs/DIV
VOUT
20mV/DIV
(AC-COUPLED)
60mA
IOUT
0mA
Load Regulation
Output Load Capability at 4%
Below Regulation
Effective Open-Loop Output
Resistance vs Temperature
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
TYPICAL PERFOR A CE CHARACTERISTICS (LTC3221-3.3 only)



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