lt1941 Linear Technology Corporation, lt1941 Datasheet - Page 6

• Manufacturer Part Number: lt1941
• Description: Triple Monolithic Switching Regulator
• Manufacturer: Linear Technology Corporation

LT1941
TYPICAL PERFOR A CE CHARACTERISTICS
6
1.3
1.2
1.1
1.0
0.9
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–50
–50
Frequency vs Temperature
RUN/SS Thresholds
vs Temperature
–25
–25
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TO RUN
25
25
TO SWITCH
50
50
75
75
W
100
100
1941 G16
1941 G13
U
125
125
1.2
1.0
0.8
0.6
0.4
0.2
8.0
7.5
7.0
6.5
6.0
5.5
5.0
0
0
Switching Frequency
vs % of Feedback Voltage
1
Minimum Input Voltage
V
T
A
OUT2
V
V
IN
IN
= 25°C
TO START
TO RUN
20
= 5V
% OF FEEDBACK VOLTAGE
LOAD CURRENT (mA)
10
40
D
T
60
A
BOOST
= 25°C
100
BOOST DIODE
TIED TO
OUTPUT
BOOST DIODE
TIED TO
INPUT
= CMDSH-3
80
1941 G17
1941 G14
1000
100
6.0
5.5
5.0
4.5
4.0
3.5
3.0
3.0
2.5
2.0
1.5
1.0
0.5
0
–50
1
I
Minimum Input Voltage
V
RUN/SS
V
V
OUT2
IN
IN
–25
TO START
TO RUN
= 3.3V
vs Temperature
LOAD CURRENT (mA)
0
TEMPERATURE (°C)
10
25
50
D
T
A
BOOST
= 25°C
100
BOOST DIODE
TIED TO
OUTPUT
BOOST DIODE
TIED TO
INPUT
75
= CMDSH-3
100
1941 G18
1941 G15
1941fa
1000
125