Datasheet

LT8302
4
Rev E
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TYPICAL PERFORMANCE CHARACTERISTICS
Boundary Mode Waveforms Discontinuous Mode Waveforms Burst Mode Waveforms
V
IN
Shutdown Current
V
IN
Quiescent Current,
Sleep Mode
V
IN
Quiescent Current,
Active Mode
Output Load and Line Regulation Output Temperature Variation
Switching Frequency
vs Load Current
T
A
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
5.1
5.2
5.3
25 75
8302 G02
5.0
4.9
–25 0
50 100 150125
4.8
4.7
FRONT PAGE APPLICATION
V
IN
= 12V
I
OUT
= 1A
R
TC
= 115k
R
TC
= OPEN
V
SW
20V/DIV
V
OUT
50mV/DIV
2µs/DIV
FRONT PAGE APPLICATION
V
IN
= 12V
I
OUT
= 2A
8302 G04
V
SW
20V/DIV
V
OUT
50mV/DIV
2µs/DIV
FRONT PAGE APPLICATION
V
IN
= 12V
I
OUT
= 0.5A
8302 G05
V
SW
20V/DIV
V
OUT
50mV/DIV
20µs/DIV
FRONT PAGE APPLICATION
V
IN
= 12V
I
OUT
= 10mA
8302 G06
V
IN
(V)
0
I
Q
(µA)
6
8
10
40
8302 G07
4
2
0
10
20
30
50
T
J
= 150°C
T
J
= 25°C
T
J
= –55°C
V
IN
(V)
0
80
I
Q
(µA)
90
100
110
120
130
140
10 20 30 40
8302 G08
50
T
J
= 150°C
T
J
= –55°C
T
J
= 25°C
V
IN
(V)
0
I
Q
(µA)
380
400
420
40
8302 G09
360
340
320
10
20
30
50
T
J
= 150°C
T
J
= –55°C
T
J
= 25°C
LOAD CURRENT (A)
0 0.5
0
FREQUENCY (kHz)
200
500
1.0
2.0
2.5
8302 G03
100
400
300
1.5
3.0
V
IN
= 5V
V
IN
= 12V
V
IN
= 24V
FRONT PAGE APPLICATION
LOAD CURRENT (A)
0
OUTPUT VOLTAGE (V)
5.15
1.5
8302 G01
5.00
4.90
0.5 1.0 2.0
4.85
4.80
5.20
5.10
5.05
4.95
2.5 3.0
V
IN
= 5V
V
IN
= 12V
V
IN
= 24V
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