Datasheet

LT3512
4
3512fb
Maximum Frequency
vs Temperature
Minimum Frequency
vs Temperature
Boundary Mode Waveform
Light Load Discontinuous
Mode Waveform
EN/UVLO Pin (Hysteresis) Current
vs Temperature
EN/UVLO Pin Current
vs V
EN/UVLO
EN/UVLO Threshold
vs Temperature
Typical perForMance characTerisTics
T
A
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50 –25
0
EN/UVLO PIN CURRENT (µA)
2
5
0
50
75
3512 G07
1
4
3
25
100
150125
EN/UVLO = 1.2V
V
EN/UVLO
VOLTAGE (V)
1
0
EN/UVLO PIN CURRENT (µA)
5
10
15
20
25
30
20 40 60 80
3512 G08
100
TEMPERATURE (°C)
–50
EN/UVLO THRESHOLD (V)
2.0
2.5
3.0
25 75
3512 G09
1.5
1.0
–25 0
50 100 150125
0.5
0
TEMPERATURE (°C)
–50 –25
0
MAXIMUM FREQUENCY (kHz)
400
300
1000
900
0
50
75
3512 G10
200
100
800
700
600
500
25
100
150125
TEMPERATURE (°C)
–50 –25
0
MINIMUM FREQUENCY (kHz)
40
30
100
90
0
50
75
3512 G11
20
10
80
70
60
40
25
100
150125
20V/DIV
2µs/DIV
3512 G12
20V/DIV
2µs/DIV
3512 G13
EN/UVLO Shutdown Threshold
vs Temperature
TEMPERATURE (°C)
–50
0
EN/UVLO THRESHOLD (V)
0.1
0.3
0.4
0.5
50
0.9
3512 G14
0.2
0
–25
75 100
25 150125
0.6
0.7
0.8