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LTC1682-3.3 Datasheet(PDF) 4 Page - Linear Technology

No. de pieza LTC1682-3.3
Descripción Electrónicos  Doubler Charge Pumps with Low Noise Linear Regulator
PDF  12 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LTC1682-3.3 Datasheet(HTML) 4 Page - Linear Technology

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4
LTC1682/LTC1682-3.3/LTC1682-5
Oscillator Frequency vs
Temperature
Operating Current vs VIN
(No Load)
VOUT Transient Response
VOUT
200
µV/DIV
100
µs/DIV
1682 G04
CCPO = COUT = 4.7µFVOUT = 5V
IOUT = 10mA
TA = 25°C
VIN = 3V
CFILT = 1nF
LTC1682-5 Output Noise
(BW = 10Hz to 2.5MHz)
Shutdown to Enable Timing
Min and Max VCPO vs VIN
CPO Output Resistance vs VIN
Enable to Shutdown Timing
TYPICAL PERFOR A CE CHARACTERISTICS
VIN (V)
1.5
35
30
25
20
15
10
5
2.0
2.5
3.0
3.5
1682 G01
4.0
4.5
TA = 25°C
C1 = 0.22
µF
IOUT = 10mA
VIN (V)
1.5
9
8
7
6
5
4
3
2.0
2.5
3.0
3.5
1682 G02
4.0
4.5
VCPO = 2(VIN)
(A)
(A) THE MAXIMUM GENERATED NO LOAD
CPO VOLTAGE
(B) THE MINIMUM ALLOWABLE CPO VOLTAGE,
AT FULL LOAD, TO ENSURE THAT THE LDO
IS NOT DISABLED
(B)
VCPO = 1.45(VIN)
TA = 25°C
TIME (
µs)
050
100
200
150
250
300
1682 G02
10
5
0
–5
–10
15
10
5
0
TA = 25°C
VIN = 3V
VOUT = 4V
COUT = 10µF
200
µs/DIV
2
0
4
3
2
1
0
1682 G05
TA = 25°C
VIN = 3V
VOUT = 4V
IOUT = 10mA
CCPO = COUT = 10µF
1ms/DIV
2
0
4
3
2
1
0
1682 G06
NO LOAD
TA = 25°C
VIN = 3V
VOUT = 4V
COUT = 10µF
TEMPERATURE (
°C)
–50
565
560
555
550
545
540
535
530
25
75
1682 G07
–25
0
50
100
125
VIN = 3V
VIN (V)
220
200
180
160
140
120
100
80
60
1682 G08
1.5
2.0
2.5
3.0
3.5
4.0
4.5
TA = 25°C
LTC1682-3.3
LTC1682-5
LTC1682



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