Datasheet
LT1765/LT1765-1.8/LT1765-2.5/
LT1765-3.3/LT1765-5
4
1765fd
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50
FB VOLTAGE (V)
100
1765 G01
050
1.220
1.215
1.210
1.205
1.200
1.195
1.190
1.185
1.180
–25 25 75 125
SWITCH CURRENT (A)
1
350
300
250
200
150
100
50
0
0
1765 G02
23
SWITCH VOLTAGE (mV)
T
A
= 125°C
T
A
= –40°C
T
A
= 25°C
TEMPERATURE (°C)
–50
–25 0 25 50 75 100 125
FREQUENCY (MHz)
1765 G03
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
TEMPERATURE (°C)
–50 –25 0 25 50 75 100 125
SHDN THRESHOLD (V)
1765 G04
1.40
1.38
1.36
1.34
1.32
1.30
V
IN
(V)
0 5 10 15 20 25 30
V
IN
CURRENT (μA)
1765 G05
7
6
5
4
3
2
1
0
SHDN = 0V
V
IN
(V)
0 5 10 15 20 25 30
V
IN
CURRENT (μA)
1765 G05
7
6
5
4
3
2
1
0
SHDN = 0V
SHDN Threshold vs Temperature
SHDN Supply Current vs V
IN
SHDN I
P
Current vs Temperature
FB vs Temperature (Adj) Switch On Voltage Drop
Oscillator Frequency