LTC1624CS Datasheet

  • LTC1624CS

  • Linear Technology [High Efficiency SO-8 N-Channel Switching...

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LTC1624
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current
V
OUT
= 3.3V
100
95
EFFICIENCY (%)
90
85
80
75
70
0.001
V
OUT
= 3.3V
R
SENSE
= 0.033鈩?/div>
V
IN
= 5V
EFFICIENCY (%)
I
LOAD
= 1A
85
I
LOAD
= 0.1A
80
75
70
EFFICIENCY (%)
V
IN
= 10V
0.01
0.1
1
LOAD CURRENT (A)
Efficiency vs Input Voltage
V
OUT
= 5V
100
95
V
OUT
= 5V
R
SENSE
= 0.033鈩?/div>
I
LOAD
= 1A
0.7
0.6
0.5
SUPPLY CURRENT (碌A)
EFFICIENCY (%)
V
IN
鈥?V
OUT
(V)
90
85
I
LOAD
= 0.1A
80
75
70
0
5
20
15
10
INPUT VOLTAGE (V)
Boost Line Regulation
6
5
6
BOOST VOLTAGE (V)
4
3
2
1
0
BOOST VOLTAGE (V)
4
3
2
1
V
SW
= 0V
0
BOOST VOLTAGE (V)
I
BOOST
= 1mA
V
SW
= 0V
0
5
20
15
25
10
INPUT VOLTAGE (V)
30
35
U W
10
1624 G07
Efficiency vs Input Voltage
V
OUT
= 3.3V
100
95
90
V
OUT
= 3.3V
R
SENSE
= 0.033鈩?/div>
100
95
90
85
80
75
Efficiency vs Load Current
V
OUT
= 5V
V
OUT
= 5V
V
IN
= 10V
R
SENSE
= 0.033鈩?/div>
0
5
20
15
10
INPUT VOLTAGE (V)
25
30
1624 G09
70
0.001
0.01
0.1
1
LOAD CURRENT (A)
10
1624 G08
V
IN
鈥?V
OUT
Dropout Voltage
vs Load Current
700
R
SENSE
= 0.033鈩?/div>
V
OUT
DROP OF 5%
Input Supply Current vs
Input Voltage
V
FB
= 1.21V
600
500
400
300
200
100
SHUTDOWN
0
SLEEP MODE
0.4
0.3
0.2
0.1
0
25
30
1624 G10
0
0.5
1.0
1.5
2.0
LOAD CURRENT (A)
2.5
3.0
1624 G11
0
5
20
15
25
10
INPUT VOLTAGE (V)
30
35
1624 G05
Boost Load Regulation
6.0
V
IN
= 15V
5
V
IN
= 5V
5.5
Boost Voltage vs Temperature
I
LOAD
= 1mA
5.0
4.5
0
5
20
15
25
10
BOOST LOAD CURRENT (mA)
30
1624 G06
4.0
鈥?0 鈥?5
60
35
85
10
TEMPERATURE (掳C)
110
135
1624 G04
1624 G15
3

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