Datasheet

3
LT1616
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Efficiency, V
OUT
= 5V
LOAD CURRENT (mA)
0
80
90
100
300 400
1616 G01
70
60
100 200 500
50
40
30
EFFICIENCY (%)
V
IN
= 8V
V
IN
= 24V
V
IN
= 12V
LOAD CURRENT (mA)
0
80
90
100
300 400
1616 G02
70
60
100 200 500
50
40
30
EFFICIENCY (%)
V
IN
= 5V
V
IN
= 20V
V
IN
= 12V
SWITCH CURRENT (mA)
0
0
SWITCH VOLTAGE (mV)
100
200
300
400
500
200 400
1616 G03
600
Efficiency, V
OUT
= 3.3V Switch Voltage Drop
Maximum Load Current
at V
OUT
= 5V BOOST Pin Current
INPUT VOLTAGE (V)
0
LOAD CURRENT (mA)
300
400
20
1616 G04
200
100
5
10
15
25
500
L = 15µH
L = 6.8µH
L = 10µH
OUTPUT LIMITED
BY DISSIPATION
Maximum Load Current
at V
OUT
= 3.3V
INPUT VOLTAGE (V)
0
LOAD CURRENT (mA)
300
400
20
1616 G05
200
100
5
10
15
25
500
L = 10µH
L = 4.7µH
OUTPUT LIMITED
BY DISSIPATION
SWITCH CURRENT (mA)
0
BOOST PIN CURRENT (mA)
6
8
10
1616 G06
4
2
0
200 400
12
14
16
600
Switch Current Limit
DUTY CYCLE (%)
0
SWITCH CURRENT LIMIT (mA)
600
TYPICAL
800
1000
80
1616 G07
400
200
0
20
40
60
100
MINIMUM
Feedback Pin Voltage
TEMPERATURE (°C)
–50
1.22
FEEDBACK PIN VOLTAGE (V)
1.23
1.24
1.25
1.26
1.27
–25
02550
1616 G08
75 100
Undervoltage Lockout
TEMPERATURE (°C)
–50
3.1
UNDERVOLTAGE LOCKOUT (V)
3.2
3.3
3.4
3.5
3.7
–25
02550
1616 G11
75 100
3.6
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