EL7551
Typical Performance Curves (Continued)
Oscillator Frequency vs Temperature
390
385
380
375
370
365
360
-40
0
40
80
120
Temperature (°C)
Switching Frequency vs COSC
1400
1200
1000
800
600
400
200
0
0
200
400
600
COSC (pF)
Transient Response
VIN=5V, VO=3.8V, IO=0A-1A
800
1000
Input Current vs Temperature
(Enable connected to GND)
0.96
0.94
VIN=5.5V
0.92
0.9
VIN=5V
VIN=4.5V
0.88
0.86
0.84
0.82
0.8
-40
10
60
110
160
Temperature (°C)
Switching Waveforms
VIN=5V, VO=3.8V, IO=1A
∆VI
VLX
∆VO
iL
Power-Up
VIN=5V, VO=3.8V, IO=1A
iO
VIN
∆VO
VO
5