L5985 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L5985' PDF : 36 Pages View PDF
L5985
Application informations
Figure 28. Load regulation
0.6
FSW=250KHz
0.5
0.4
0.3
VCC=12V
0.2
0.1
0
0
0.5
1
Io [A]
Figure 29. Line regulation
VCC=3.3V
VCC=5.0V
1.5
2
1
0.8
0.6
0.4
Io=2A
0.2
Io=1A
0
2
4
6
8
10
12
14
16
18
-0.2
VCC [V]
Figure 30. Load transient form 0.3A to 1.3A Figure 31. Soft start
VOUT
AC coupled
100mV/div
IL
0.5A/div
Load slew rate = 2.5A/us
COUT=47uF
L=6.8uH
FSW=500kHz
Timescale
100us/div
IL
500mA/div
Time base 1ms/div
VOUT
500mV/div
VFB
200mV/div
Figure 32. Short circuit behavior
OUT
10V/div
VOUT
1V/div
IL
500mA/div
OUTPUT
SHORTED
Time base 5ms/div
31/36
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