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L4972AD датащи(PDF) 8 Page - STMicroelectronics

номер детали L4972AD
подробное описание детали  2A SWITCHING REGULATOR
PDF  22 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4972AD датащи(HTML) 8 Page - STMicroelectronics

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L4972A
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Figure 8.
TYPICAL PERFORMANCES (using evaluation board) :
n = 83% (Vi = 35V ; Vo = VREF ; Io = 2A ; fsw = 100KHz)
Vo RIPPLE = 30mV (at 1A)
Line regulation = 12mV (Vi = 15 to 50V)
Load regulation = 7mV (Io = 0.5 to 2A)
for component values Refer to the fig. 8 (Part list).
Figure 9. Component Layout of fig. 8. Evaluation Board Available (only for DIP version)
V4R
Rising Threshold Voltage
V9 = V13
4.95
5.1
5.25
V
15
V4H
Hysteresis
0.4
0.5
0.6
V
15
I4
Input Bias Current
1
3
µA15
Table 5. Electrical Characteristcs (continued)
Refer to the test circuit, TJ = 25°C, Vi = 35V, R4 = 30KΩ, C9 = 2.7nF, fSW = 100KHz typ, unless otherwise
specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Fig.



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