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LTC1044AI Fiches technique(PDF) 4 Page - Linear Technology

No de pièce LTC1044AI
Description  12V CMOS Voltage Converter
PDF  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LTC1044AI Fiches technique(HTML) 4 Page - Linear Technology

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4
LTC1044A
Output Resistance
vs Supply Voltage
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
Output Voltage
vs Load Current, V + = 5V
Output Voltage
vs Load Current, V + = 2V
SUPPLY VOLTAGE (V)
1
3
1000
LTC1044A • TPC09
10
100
210 11 12
9
8
7
6
5
4
0
TA = 25°C
IL = 3mA
COSC = 100pF
COSC = 0pF
LOAD CURRENT (mA)
0
0.5
1.5
2.5
8
LTC1044A • TPC10
– 0.5
–1.5
0
1.0
2.0
–1.0
–2.0
–2.5
2
4
6
10
7
1
3
5
9
TA = 25°C
fOSC = 1kHz
SLOPE = 250
Ω
LOAD CURRENT (mA)
0
1
3
5
80
LTC1044A • TPC11
–1
–3
0
2
4
–2
–4
–5
20
40
60
100
70
10
30
50
90
TA = 25°C
fOSC = 5kHz
SLOPE = 80
Ω
Output Voltage
vs Load Current, V + = 10V
Oscillator Frequency as a
Function of COSC, V
+ = 5V
Output Resistance
vs Temperature
LOAD CURRENT (mA)
0
2
6
10
40
LTC1044A • TPC12
–2
–6
0
4
8
–4
–8
–10
10 20 30
50 60 70 80 90 100
TA = 25°C
fOSC = 20kHz
SLOPE = 45
Ω
AMBIENT TEMPERATURE (°C)
–55
0
40
120
160
200
400
280
0
50
75
LTC1044A • TPC13
80
320
360
240
–25
25
100
125
V+ = 2V, fOSC = 1kHz
C1 = C2 = 10
µF
V+ = 5V, fOSC = 5kHz
V+ = 10V, fOSC = 20kHz
EXTERNAL CAPACITOR (PIN 7 TO GND)(pF)
1
10
10
1k
100k
100
1000
10000
LTC1044A • TPC14
100
10k
TA = 25°C
PIN 1 = V+
PIN 1 = OPEN
Oscillator Frequency as a
Function of COSC, V+ = 10V
Oscillator Frequency
vs Temperature
Oscillator Frequency
vs Supply Voltage
EXTERNAL CAPACITOR (PIN 7 TO GND)(pF)
1
10
10
1k
100k
100
1000
10000
LTC1044A • TPC15
100
10k
V+ = 10V
TA = 25°C
PIN 1 = V+
PIN 1 = OPEN
SUPPLY VOLTAGE (V)
0123
1k
10k
100k
4567
8
9 10 11 12
LTC1044A • G16
0.1k
TA = 25°C
COSC = 0pF
AMBIENT TEMPERATURE (°C)
–55
20
25
35
25
75
LTC1044A • TPC17
15
10
–25
0
50
100
125
5
0
30
V+ = 10V
V+ = 5V
COSC = 0pF
Using the Test Circuit



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