EL7551C Elantec Semiconductor, EL7551C Datasheet - Page 5

• Manufacturer Part Number: EL7551C
• Description: Monolithic 1 Amp DC:DC Step-down Regulator
• Manufacturer: Elantec Semiconductor

Typical Performance Curves
1400
1200
1000
390
385
380
375
370
365
360
800
600
400
200
V
i
O
O
0
-40
0
Oscillator Frequency vs Temperature
Switching Frequency vs C
Transient Response
V
IN
=5V, V
O
200
=3.8V, I
0
O
=0A-1A
Temperature (°C)
400
C
OSC
OSC
40
(pF)
600
80
800
1000
120
Monolithic 1 Amp DC:DC Step-down Regulator
5
EL7551C - Preliminary
V
0.96
0.94
0.92
0.88
0.86
0.84
0.82
V
V
V
IN
0.9
0.8
LX
O
V
i
O
L
I
-40
Power-Up
V
Input Current vs Temperature
(Enable connected to GND)
Switching Waveforms
V
IN
IN
=5V, V
=5V, V
O
O
=3.8V, I
=3.8V, I
10
O
O
=1A
=1A
Temperature (°C)
60
V
IN
=5V
110
V
V
IN
IN
=5.5V
=4.5V
160