Datasheet

3
LT3436
3436fa
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3436E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: Minimum input voltage is defined as the voltage where the internal
regulator enters lockout. Actual minimum input voltage to maintain a
regulated output will depend on output voltage and load current. See
Applications Information.
TYPICAL PERFORMANCE CHARACTERISTICS
UW
FB Voltage
Switch On Voltage Drop Oscillator Frequency
SHDN Input Current
SHDN Threshold
SHDN Supply Current
ELECTRICAL CHARACTERISTICS
TEMPERATURE (°C)
–50
FB VOLTAGE (V)
100
3436 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)
0
SWITCH VOLTAGE (mV)
0.5
1.0
1.5 2.0
3436 G02
2.5
500
450
400
350
300
250
200
150
100
50
0
3.0
TEMPERATURE (°C)
–50
OSCILLATOR FREQUENCY (kHz)
100
3436 G03
050
920
890
860
830
800
770
740
710
680
–25 25 75 125
SHDN THRESHOLD (V)
1.40
1.38
1.36
1.34
1.32
1.30
3436 G04
INPUT VOLTAGE (V)
V
IN
CURRENT (µA)
14
12
10
8
6
4
2
0
3436 G05
0
5
10 15 20 25 30
TEMPERATURE (°C)
–50
SHDN INPUT CURRENT (µA)
–12
–10
–8
–6
–4
–2
0
25 75
3436 G06
–25 0
50 100 125
T
A
= 125°C
T
A
= 25°C
T
A
= –40°C
TEMPERATURE (°C)
–50 100
050–25 25 75 125
T
A
= 25°C
SHDN = 0V
SHUTTING DOWN
STARTING UP