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LTC1046CS8 Scheda tecnica(PDF) 3 Page - Linear Technology

Il numero della parte LTC1046CS8
Spiegazioni elettronici  ?쏧nductorless??5V to 5V Converter
PDF  12 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC1046CS8 Scheda tecnica(HTML) 3 Page - Linear Technology

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LTC1046
EXTERNAL CAPACITOR (PIN 7 TO GND), COSC (pF)
1
0.1
1
10
100
10
100
10000
1046 G09
1000
V + = 5V
TA = 25°C
PIN 1 = OPEN
PIN 1 = V+
LOAD CURRENT, IL (mA)
0
–2.5
–2.0
–1.5
–1.0
–0.5
0.0
0.5
2
4
6
8
1046 G07
10 12 14 16 18 20
1.0
1.5
2.0
2.5
SLOPE = 52
Ω
TA = 25°C
V+ = 2V
fOSC = 8kHz
C1 = C2 = 10
µF
LOAD CURRENT, IL (mA)
0
–5
–4
–3
–2
–1
0
1
10 20 30 40
1046 G08
50 60 70 80 90 100
2
3
4
5
SLOPE = 27
Ω
TA = 25°C
V+ = 5V
fOSC = 30kHz
C1 = C2 = 10
µF
OSCILLATOR FREQUENCY, fOSC (Hz)
100
80
86
92
98
100
1k
10k
100k
1M
1046 G06
96
94
90
88
84
82
V + = 5V
TA = 25°C
C1 = C2
A = 100
µF, 1mA
B = 100
µF, 15mA
C = 10
µF, 1mA
D = 10
µF, 15mA
E = 1
µF, 1mA
F = 1
µF, 15mA
A
C
B
E
D
F
LOAD CURRENT, IL (mA)
0
30
50
60
70
80
90
100
30
40
60
70
1046 G05
40
10
20
50
PEFF
IS
20
10
0
TA = 25°C
V+ = 5V
C1 = C2 = 10
µF
fOSC = 30kHz
30
50
60
70
80
90
100
40
20
10
0
LOAD CURRENT, IL (mA)
0
30
50
60
70
80
90
100
34
6
7
1046 G04
40
12
5
PEFF
IS
20
10
0
TA = 25°C
V+ = 2V
C1 = C2 = 10
µF
fOSC = 8kHz
89
10
3
5
6
7
8
9
10
4
2
1
0
AMBIENT TEMPERATURE (
°C)
–55
10
30
40
50
60
70
80
25
50
100
125
1046 G03
20
–25
0
75
C1 = C2 = 10
µF
V+ = 2V, COSC = 0pF
V+ = 5V, COSC = 0pF
OSCILLATOR FREQUENCY, fOSC (Hz)
100
0
200
300
400
500
1k
10k
100k
1046 G01
100
TA = 25°C
V+ = 5V
IL = 10mA
C1 = C2
= 1
µF
C1 = C2
= 10
µF
C1 = C2
= 100
µF
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
(Using Test Circuit in Figure 1)
Output Resistance vs
Output Resistance vs
Output Resistance vs
Oscillator Frequency
Supply Voltage
Temperature
Power Conversion Efficiency vs
Power Conversion Efficiency vs
Power Conversion Efficiency vs
Load Current for V+ = 2V
Load Current for V+ = 5V
Oscillator Frequency
Output Voltage vs Load Current
Output Voltage vs Load Current
Oscillator Frequency as a
for V+ = 2V
for V+ = 5V
Function of COSC
SUPPLY VOLTAGE, V+ (V)
0
10
100
1000
25
6
7
1046 G02
13
4
TA = 25°C
IL = 3mA
COSC = 100pF
COSC = 0pF



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