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L5993 Datasheet(PDF) 5 Page - STMicroelectronics

Part # L5993
Description  CONSTANT POWER CONTROLLER
PDF  22 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5993 Datasheet(HTML) 5 Page - STMicroelectronics

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background image
8
1 01 2
1 41 61 82 0
2 2
2 4
7.0
7.5
8.0
8.5
9.0
Vc c
[V ]
Iq [m A ]
V1 4 = 0 , V 5 = V re f
R t = 4 .5 K o h m ,T j = 2 5
°C
5 00K hz
300K hz
1M hz
100K hz
Figure 3. Quiescent current vs. input voltage.
0
5
10
15
20
25
4.9
4.95
5
5.05
5.1
Iref [mA]
Vref [V]
Vcc=15V
Tj = 25
°C
Figure 6. Reference voltage vs. load current.
-50
-25
0
25
50
75
100
125
150
4.9
4.95
5
5.05
5.1
Tj (
°C)
Vref [V])
Vcc = 15V
Iref = 1mA
Figure 7. Vref vs. junction temperature.
-50
-25
0
25
50
75
100
125
150
4.9
4.95
5
5.05
5.1
Tj (
°C)
Vref [V]
Vcc = 15V
Iref= 20mA
Figure 8. Vref vs. junction temperature.
8
1012
14
1618
2022
0
6
12
18
24
30
36
Vcc [V]
Iq [mA ]
Co = 1nF, Tj = 2 5
°C
DC = 10 0%
1M Hz
500K Hz
30 0K Hz
10 0KHz
Figure 5. Quiescent current vs. input voltage
and switching frequency.
8
1 0
12
141 6
182 022
0
6
12
18
24
30
36
V cc [V]
Iq [m A ]
C o = 1nF, T j = 25
°C
DC = 0 %
1M H z
50 0K H z
30 0K H z
1 0 0 KHz
Figure 4. Quiescent current vs. input voltage
and switching frequency.
L5993
5/22



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