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LTC3621 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3621
Description  17V, 1A Synchronous Step-Down Regulator with 3.5關A Quiescent Current
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3621 Datasheet(HTML) 5 Page - Linear Technology

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LTC3621/LTC3621-2
5
3621f
For more information www.linear.com/LTC3621
Typical perForMance characTerisTics
RDS(ON) vs Temperature
Load Regulation
Line Regulation
Efficiency vs Load at 1MHz
VIN Supply Current
vs Temperature
Switch Leakage
vs Temperature
Oscillator Frequency
vs Supply Voltage
Reference Voltage
vs Temperature
RDS(ON) vs Input Voltage
TJ = 25°C, unless otherwise noted.
SUPPLY VOLTAGE (V)
2
3621 G10
7
12
17
2.30
2.35
2.45
2.50
2.40
2.25
2.20
2.15
2.05
2.00
2.10
INPUT VOLTAGE (V)
100
300
500
700
200
400
600
4
8
12
16
3621 G12
20
2
0
6
10
14
18
TOP FET
BOTTOM FET
TEMPERATURE (°C)
–50
100
150
250
300
350
600
450
0
50
75
100
3621 G13
200
500
550
400
–25
25
125
TOP FET
BOTTOM FET
LOAD CURRENT (mA)
0
–5
500
5
3621 G14
1000
1500
4
3
2
1
0
–1
–2
–3
–4
VIN = 12V
VOUT = 3.3V
FORCED CONTINUOUS MODE
INPUT VOLTAGE (V)
0
–0.5
4
3
2
1
0.5
3621 G15
8
7
6
5
11
10
9
12
17
16
15
14
13
0.3
0.1
–0.1
–0.3
TEMPERATURE (°C)
–50
4
5
6
25
75
3521 G17
3
2
–25
0
50
100
125
1
0
SLEEP
SHUTDOWN
TEMPERATURE (°C)
–100
–50
599.5
600.0
600.5
3521 G11
599.0
598.5
0
50
100
150
598.0
597.5
TEMPERATURE (°C)
–50
0
0.01
0.03
0.04
0.05
50
0.09
3621 G18
0.02
0
–25
75
100
25
125
0.06
0.07
0.08
BOTTOM FET
TOP FET
LOAD CURRENT (A)
3621 G16
100
90
80
70
60
50
40
30
20
10
0
0.0001
0.001
0.1
1
0.01
VIN = 12V
VOUT = 2.5V
VOUT = 3.3V
VOUT = 5V



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