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LT1961EMS8ETR Datasheet(PDF) 4 Page - Linear Technology

Part # LT1961EMS8ETR
Description  1.5A, 1.25MHz Step-Up Switching Regulator
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1961EMS8ETR Datasheet(HTML) 4 Page - Linear Technology

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4
LT1961
1961fa
TYPICAL PERFORMANCE CHARACTERISTICS
FB vs Temperature
Switch On Voltage Drop
Oscillator Frequency
SHDN IP Current vs Temperature
SHDN Threshold vs Temperature
SHDN Supply Current vs VIN
TEMPERATURE (
°C)
–50
–25
0
25
50
75
100
125
1961 G01
1.22
1.21
1.20
1.19
1.18
SWITCH CURRENT (A)
0
0.5
1
1.5
1961 G02
400
350
300
250
200
150
100
50
0
125
°C
25
°C
–40
°C
TEMPERATURE (
°C)
–50
–25
0
25
50
75
100
125
1961 G03
1.5
1.4
1.3
1.2
1.1
TA = 25°C
TEMPERATURE (
°C)
–50
–25
0
25
50
75
100
125
1961 G04
1.40
1.38
1.36
1.34
1.32
1.30
VIN (V)
0
5
10
15
20
25
30
1961 G05
7
6
5
4
3
2
1
0
TA = 25°C
SHDN = 0V
TEMPERATURE (
°C)
–50
–25
0
25
50
75
100
125
1961G06
–12
–10
–8
–6
–4
–2
0
STARTING UP
SHUTTING DOWN
SHDN Supply Current
Input Supply Current
Current Limit Foldback
SHUTDOWN VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1961 G07
300
250
200
150
100
50
0
TA = 25°C
VIN = 15V
INPUT VOLTAGE (V)
0
5
10
15
20
25
30
1961 G08
1200
1000
800
600
400
200
0
MINIMUM
INPUT
VOLTAGE
TA = 25°C
FEEDBACK VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1
1.2
1961 G09
2.0
1.5
1.0
0.5
0
40
30
20
10
0
FB CURRENT
SWITCH CURRENT
TA = 25°C


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