LTC1624
U W
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Input Voltage
OUT = 3.3V
Efficiency vs Load Current
VOUT = 5V
Efficiency vs Load Current
OUT = 3.3V
V
V
100
95
90
85
80
75
70
100
95
90
85
80
75
70
100
95
90
85
80
75
70
V
= 3.3V
SENSE
OUT
V
R
= 3.3V
SENSE
OUT
V
= 5V
OUT
= 10V
R
= 0.033Ω
= 0.033Ω
V
IN
V
= 5V
IN
R
= 0.033Ω
SENSE
V
= 10V
IN
I
= 1A
LOAD
I
= 0.1A
LOAD
20
30
0
5
10
15
25
2.5
25
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
INPUT VOLTAGE (V)
LOAD CURRENT (A)
1624 G07
1624 G08
1624 G09
Efficiency vs Input Voltage
VOUT = 5V
VIN – VOUT Dropout Voltage
vs Load Current
Input Supply Current vs
Input Voltage
100
95
90
85
80
75
70
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
700
600
500
400
300
200
100
0
V
= 5V
OUT
SENSE
R
V
= 0.033Ω
DROP OF 5%
V
= 1.21V
SENSE
OUT
FB
R
= 0.033Ω
SLEEP MODE
I
= 1A
LOAD
I
= 0.1A
LOAD
SHUTDOWN
20
INPUT VOLTAGE (V)
30
15
20
INPUT VOLTAGE (V)
25
30
35
0
5
10
15
25
0
5
10
0
1.0
1.5
2.0
3.0
0.5
LOAD CURRENT (A)
1624 G10
1624 G11
1624 G05
Boost Load Regulation
Boost Voltage vs Temperature
Boost Line Regulation
6.0
5.5
5.0
4.5
4.0
6
5
4
3
2
1
0
6
5
4
3
2
1
0
I
= 1mA
LOAD
V
= 15V
= 5V
IN
V
IN
I
V
= 1mA
BOOST
V
= 0V
= 0V
SW
SW
60
TEMPERATURE (°C)
110 135
–40 –15
10
35
85
20
INPUT VOLTAGE (V)
30
35
0
5
10
15
25
20
BOOST LOAD CURRENT (mA)
30
0
5
10
15
1624 G15
1624 G04
1624 G06
3
Linear [ Linear ]
