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L6983IQTR Datasheet(PDF) 8 Page - STMicroelectronics

Part # L6983IQTR
Description  38 V, 10 W synchronous iso-buck converter for isolated applications
PDF  56 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6983IQTR Datasheet(HTML) 8 Page - STMicroelectronics

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4.1
Frequency selection table
All the populations tested at TJ = 25 °C, VIN = 12 V unless otherwise specified.
Table 7. FSW selection
Symbol
Option
RFSW1 (kΩ)
RFSW2 (KΩ)
Min.
Typ.
Max.
Unit
FSW
Dithering
1.8
N.C.
200
kHz
0
N.C.
400
kHz
3.3
N.C.
500
kHz
5.6
N.C.
700
kHz
10
N.C.
1000
kHz
No dithering
N.C.
1.8
200
kHz
N.C.
0
360
400
440
kHz
N.C.
3.3
500
kHz
N.C.
5.6
630
700
770
kHz
N.C.
10
900
1000
1100
kHz
Figure 3. Frequency setting with dithering (left) and without (right)
FSW
VCC
AGND
FSW
VCC
AGND
R FSW2
R FSW1
L6983I
L6983I
L6983I
Frequency selection table
DS14040 - Rev 1
page 8/56



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