Datasheet

3
LT1305
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
TEMPERATURE (°C)
–50
2
ON TIME (µs)
3
4
5
6
8
–25
02550
LT1305 • G01
75 100
7
Switch On Time
TEMPERATURE (°C)
–50
50
DUTY CYCLE (%)
60
65
70
75
80
85
–25
0
25 50
LT1305 • G03
75
90
95
100
55
100
Maximum Duty Cycle
TEMPERATURE (°C)
–50
100
FREQUENCY (kHz)
120
130
140
150
160
170
–25
0
25 50
LT1305 • G02
75
180
190
200
110
100
Oscillator Frequency
TEMPERATURE (°C)
–50
100
QUIESCENT CURRENT (µA)
120
130
140
150
160
170
–25
0
25 50
LT1305 • G04
75
180
190
200
110
100
SWITCH OFF
V
IN
= 2V
Quiescent Current Quiescent Current
INPUT VOLTAGE (V)
0
QUIESCENT CURRENT (µA)
300
400
500
8
LT1305 • G05
200
100
0
2
4
6
10
T
A
= 25°C
SWITCH OFF
Current Limit
TEMPERATURE (˚C)
–50

1.8
2.0
2.2
25 75
LT1305 • G06
1.6
1.4
–25 0
50 100
1.2
1.0
PEAK SWITCH CURRENT (A)
2.4
TEMPERATURE (°C)
–50
0
BIAS CURRENT (nA)
4
6
8
10
12
14
–25
0
25 50
LT1305 • G07
75
16
18
20
2
100
LBI Pin Bias Current FB Pin Bias Current
TEMPERATURE (°C)
–50
0
BIAS CURRENT (nA)
4
6
8
10
12
14
–25
0
25 50
LT1305 • G08
75
16
18
20
2
100
FB Voltage
TEMPERATURE (°C)
–50
1.200
FEEDBACK VOLTAGE (V)
1.210
1.215
1.220
1.225
1.230
1.235
–25
0
25 50
LT1305 • G09
75
1.240
1.245
1.250
1.205
100