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LTC7813 Datasheet(PDF) 8 Page - Linear Technology

Part # LTC7813
Description  150V Low IQ, Synchronous Step-Down DC/DC Controller
PDF  38 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC7813 Datasheet(HTML) 8 Page - Linear Technology

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LTC3895
8
3895fa
For more information www.linear.com/LTC3895
Typical perForMance characTerisTics
Quiescent Current vs Temperature
Oscillator Frequency
vs Temperature
SS Pull-Up Current
vs Temperature
Boost Charge Pump Voltage
vs SW Voltage
BOOST Charge Pump Charging
Current vs Frequency
BOOST Charge Pump Charging
Current vs SW Voltage
DRVCC Line Regulation
Shutdown Current vs Temperature
Shutdown Current
vs Input Voltage
DRVSET = INTVCC
DRVSET = 0V
No NDRV FET
EXTVCC = 0V
NDRV FET
INPUT VOLTAGE (V)
0 15 30 45 60 75 90 105 120 135 150
5
6
7
8
9
10
11
3895 G19
VIN = 12V
TEMPERATURE (°C)
–75 –50 –25 0
25 50 75 100 125 150
0
2
4
6
8
10
12
14
16
18
20
3895 G20
VIN = 6.3V
INPUT VOLTAGE (V)
0 15 30 45 60 75 90 105 120 135 150
0
5
10
15
20
25
30
3895 G21
VIN = 12V
BURST MODE OPERATION
DRVSET = 70kΩ
DRVSET = 0V
DRVSET = INTVCC
TEMPERATURE (°C)
–75 –50 –25 0
25 50 75 100 125 150
0
10
20
30
40
50
60
70
80
90
100
3895 G22
FREQ = 0V
FREQ = INTVCC
TEMPERATURE (°C)
–75 –50 –25 0
25 50 75 100 125 150
300
350
400
450
500
550
600
3895 G23
TEMPERATURE (°C)
–75 –50 –25 0
25 50 75 100 125 150
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
3895 G24
FREQ = 350kHz
10MΩ BETWEEN BOOST AND SW
150°C
25°C
–55°C
SW VOLTAGE (V)
0 5 10 15 20 25 30 35 40 45 50 55 60 65
0
1
2
3
4
5
6
7
8
9
10
3895 G25
VBOOST = 16V
VSW = 12V
150°C
25°C
–55°C
OPERATING FREQUENCY (kHz)
0 100 200 300 400 500 600 700 800 900 1000
0
10
20
30
40
50
60
70
80
90
100
3895 G26
FREQ = 350kHz
VBOOST - VSW = 7V
150°C
25°C
–55°C
SW VOLTAGE (V)
0 5 10 15 20 25 30 35 40 45 50 55 60 65
0
10
20
30
40
50
60
70
80
90
100
3895 G27
VBOOST - VSW = 4V



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