L5980 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L5980' PDF : 37 Pages View PDF
L5980
Application information
Figure 28. Load regulation
Figure 31. Load transient: from 0.1 A to 0.7 A
0.14
FSW=250KHz
0.12
0.1
0.08
0.06
0.04
0.02
0
0.1
0.2
0.3
0.4
Io [A]
VCC=3.3V
VCC=5.0V
VCC=12V
0.5
0.6
0.7
VOUT
50mV/div
AC coupled
IL
200mA/div
Time base 100μs/div
Load slew rate 2.5A/μs
COUT=47μF
L=15μH
FSW=520KHz
Figure 29. Line regulation
Figure 32. Soft-start
0.4
0.35
0.3
0.25
0.2
0.15
0.1
Io=0.7A
0.05
0
-0.05 2
4
6
8 10 12 14 16 18
VCC [V]
Figure 30. Short circuit behavior
IL
500mA/div
Time base 1ms/div
VOUT
500mV/div
VFB
200mV/div
OUT
10V/ div
OUTPUT
SHORTED
VOUT
1V/div
IL
250mA/ div
Time base 5ms/div
32/37
Share Link: 
