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LTC3458 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3458
Description  1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3458 Datasheet(HTML) 4 Page - Linear Technology

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LTC3458
4
3458f
TYPICAL PERFOR A CE CHARACTERISTICS
3458 G12
3458 G11
3458 G13
3458 G07
3458 G08
FREQUENCY (kHz)
500
95
93
91
89
87
85
1300
700
900
1100
1500
TEMPERATURE (°C)
–40
0.5
0.4
0.3
0.2
0.1
0
60
3458 G09
–15
10
35
85
VIN (V)
3458 G10
1200
1000
800
600
400
200
0
1.5
2.5
3.5
4.0
2.0
3.0
4.5
5.0
5.5
3.3VOUT
5VOUT
7.5VOUT
P-CHANNEL
N-CHANNEL
1.8 to 5.5VIN at 700kHz
RILIM = 124k
VIN = 3.3V
VOUT = 5V
VIN = 3.3V
VOUT = 5V at 100mA
TEMPERATURE (°C)
–45
0.95
0.97
1.01
1.03
1.05
–15
15
30
90
0.99
–30
0
45
60
75
TEMPERATURE (°C)
–45
–15
15
30
90
–30
0
45
60
75
TEMPERATURE (°C)
–45
–15
15
30
90
–30
0
45
60
75
0.5
0.6
0.8
0.9
1.0
0.7
1.20
1.21
1.23
1.24
1.25
1.22
TEMPERATURE (°C)
–45
–15
15
30
90
–30
0
45
60
75
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
OPERATING
SHUTDOWN
RT = 200k
Efficiency vs Frequency
Maximum Load Current
N-Channel and P-Channel RDS(ON)
(TA = 25°C unless otherwise specified)
SHDN Pin Threshold and
Hysteresis
SYNC Pin Threshold
FB Voltage
Frequency Accuracy



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