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LTC3564 Scheda tecnica(PDF) 4 Page - Linear Technology

Il numero della parte LTC3564
Spiegazioni elettronici  2.25MHz, 1.25A Synchronous Step-Down Regulator
PDF  20 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC3564 Scheda tecnica(HTML) 4 Page - Linear Technology

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4
LTC3564
3564f
Efficiency vs Input Voltage
Efficiency vs Output Current
Efficiency vs Output Current
Reference Voltage vs
Temperature
Oscillator Frequency vs
Temperature
TA = 25°C, VIN = 3.6V, unless otherwise specified.
TYPICAL PERFOR A CE CHARACTERISTICS
Frequency Variation vs VIN
Load Regulation
Line Regulation
RDS(ON) vs Input Voltage
INPUT VOLTAGE (V)
2.5
40
50
60
70
80
100
3.0
3.5
4.0
4.5
3564 G01
5.0
5.5
90
IOUT = 100mA
VOUT = 1.8V
IOUT = 1.25A
IOUT = 10mA
IOUT = 1mA
IOUT = 0.1mA
OUTPUT CURRENT (mA)
0.1
40
50
60
70
80
1
10
100
1000
10000
3564 G02
30
20
10
0
90
100
VOUT = 1.2V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
OUTPUT CURRENT (mA)
0.1
40
50
60
70
80
1
10
100
1000
10000
3564 G04
30
20
10
0
90
100
VOUT = 1.5V
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
TEMPERATURE (
°C)
–50
605
610
615
25
75
3564 G04
600
595
–25
0
50
100
125
590
585
TEMPERATURE (
°C)
–50
2.35
25
3564 G05
2.20
2.10
–25
0
50
2.05
2.00
2.40
2.30
2.25
2.15
75
100
125
VIN (V)
2.5
6
4
2
0
–2
–4
–6
–8
4.0
5.0
3564 G06
3.0
3.5
4.5
5.5
OUTPUT CURRENT (mA)
0
0.50
0.75
1.00
600
1000
3564 G07
0.25
0
200
400
800
1200 1400
–0.25
–0.50
VOUT = 1.8V
INPUT VOLTAGE (V)
2.5
–0.6
–0.4
–0.2
0
0.2
0.6
3.0
3.5
4.0
4.5
3564 G08
5.0
5.5
0.4
VOUT = 1.8V
ILOAD = 400mA
INPUT VOLTAGE (V)
2.5
0
0.05
0.10
0.15
0.20
0.25
3.0
3.5
4.0
4.5
3564 G09
5.0
5.5
MAIN SWITCH
SYNCHRONOUS SWITCH



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