Datasheet

LT1765/LT1765-1.8/LT1765-2.5/
LT1765-3.3/LT1765-5
5
1765fd
TYPICAL PERFORMANCE CHARACTERISTICS
LOAD CURRENT (A)
0.001 0.01
0.1 1
INPUT VOLTAGE (V)
1765 G07
3.5
3.3
3.1
2.9
2.7
2.5
SHUTDOWN VOLTAGE (V)
0
0.2 0.4 0.6 0.8 1 1.2 1.4
V
IN
CURRENT (μA)
1765 G08
300
250
200
150
100
50
0
V
IN
= 15V
INPUT VOLTAGE (V)
0 5 10 15 20 25 30
V
IN
CURRENT (μA)
1765 G09
1200
1000
800
600
400
200
0
UNDERVOLTAGE
LOCKOUT
FEEDBACK VOLTAGE (V)
0 0.2
0.4 0.6 0.8 1 1.2
SWITCH PEAK CURRENT (A)
1765 G10
4
3
2
1
0
FB INPUT CURRENT (μA)
40
30
20
10
0
FB CURRENT
SWITCH CURRENT
1765 G11
INPUT VOLTAGE (V)
0 5 10 15 20 25
OUTPUT CURRENT (A)
3.0
2.8
2.6
2.4
2.2
2.0
L = 4.7μH
L = 2.2μH
L = 1.5μH
INPUT VOLTAGE (V)
0510 15 20 25
OUTPUT CURRENT (A)
1765 G12
3.0
2.8
2.6
2.4
2.2
L = 4.7μH
L = 2.2μH
L = 1.5μH
Current Limit Foldback
Maximum Load Current,
V
OUT
= 5V
Maximum Load Current,
V
OUT
= 2.5V
Minimum Input Voltage for
2.5V Out SHDN Supply Current
Input Supply Current