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L6983 датащи(PDF) 20 Page - STMicroelectronics

номер детали L6983
подробное описание детали  38 V, 3 A synchronous step-down converter with 17 μA quiescent current
PDF  63 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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L6983 датащи(HTML) 20 Page - STMicroelectronics

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6.4.4
Load regulation for low consumption mode and Low noise mode part number
Figure 16. Load regulation for LCM and LNM. VIN = 24 V; VOUT = 5 V; FSW = 400 kHz - linear scale and
Figure 17. Load regulation for low noise mode. VIN = 24 V; VOUT = 5 V; FSW = 400 kHz - log scale report the load
regulation to highlight the gap, given by the different regulation strategy, at the light-load between LNM and LCM
part numbers. When the required IOUT is higher than the threshold defined on the Section 6.4.1 Low
consumption mode (LCM) the behavior of the different part number is exactly the same.
Figure 16. Load regulation for LCM and LNM. VIN = 24 V; VOUT = 5 V; FSW = 400 kHz - linear scale
-0.5
0
0.5
1
1.5
2
0
0.5
1
1.5
2
2.5
3
IOUT [A]
VIN = 24 V ; VOUT = 5 V; FSW = 0.4 MHz
LCM
LNM
Figure 17. Load regulation for low noise mode. VIN = 24 V; VOUT = 5 V; FSW = 400 kHz - log scale
-0.5
0
0.5
1
1.5
2
0.001
0.01
0.1
1
IOUT [A]
VIN = 24 V; VOUT = 5 V; FSW = 0.4 MHz
LCM
LNM
L6983
Light-load operation
DS13116 - Rev 1
page 20/63



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