ltc1624 Linear Technology Corporation, ltc1624 Datasheet - Page 3

• Manufacturer Part Number: ltc1624
• Description: High Efficiency So-8 N-channel Switching Regulator Controller
• Manufacturer: Linear Technology Corporation

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