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LTC1911-15 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC1911-15
Description  Low Noise, High Efficiency, Inductorless Step-Down DC/DC Converter
Download  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1911-15 Datasheet(HTML) 3 Page - Linear Technology

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3
LTC1911-1.5/LTC1911-1.8
sn1911 1911is
TYPICAL PERFOR A CE CHARACTERISTICS
Input Operating Current
vs Input Voltage
Input Shutdown Current
vs Input Voltage
LTC1911-1.8
Output Voltage vs Input Voltage
LTC1911-1.5
Output Voltage vs Input Voltage
LTC1911-1.5 Efficiency vs Input
Voltage (Falling Input Voltage)
LTC1911-1.8
Efficiency vs Output Current
LTC1911-1.8
Output Voltage vs Output Current
INPUT VOLTAGE (V)
2
180
190
200
6
1911 G01
170
160
3
4
5
150
210
TA = 85°C
TA = 25°C
TA = –40°C
INPUT VOLTAGE (V)
2
9
11
6
1911 G02
7
5
3
4
5
15
13
TA = 85°C
TA = 25°C
TA = –40°C
VOUT = 0V
V(SS/SHDN) = 0V
INPUT VOLTAGE (V)
2
1.80
1.85
6
1911 G03
1.75
1.70
3
4
5
1.90
TA = –40°C
TA = 25°C
TA = 85°C
IOUT = 250mA
INPUT VOLTAGE (V)
2
60
70
80
6
1911 G05
50
40
20
3
4
5
30
100
90
IDEAL LDO
100mA
250mA
OUTPUT CURRENT (mA)
1
50
60
1911 G06
40
30
10
100
1000
90
80
70
2.7V
3.2V
3.7V
4.2V
5.1V
5.5V
VIN:
LTC1911-1.5
Efficiency vs Output Current
OUTPUT CURRENT (mA)
0.1
1.78
1.80
1000
1911 G08
1.76
1.74
1
10
100
1.84
VIN = 3.6V
1.82
TA = –40°C
TA = 25°C
TA = 85°C
LTC1911-1.5
Output Voltage vs Output Current
INPUT VOLTAGE (V)
2
1.49
1.51
6
LTXXXX • TPCXX
1.47
1.45
3
4
5
1.55
1.53
TA = –40°C
TA = 25°C
TA = 85°C
IOUT = 250mA
OUTPUT CURRENT (mA)
1
30
40
50
60
70
90
10
100
1911 G07
1000
80
2.8V
3.3V
3.7V
4.3V
5.1V
5.5V
VIN:
OUTPUT CURRENT (mA)
0.1
1.48
1.50
1000
1911 G09
1.46
1.44
1
10
100
1.54
1.52
TA = –40°C
TA = 85°C
TA = 25°C


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