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A6986H3V3 датащи(PDF) 53 Page - STMicroelectronics

номер детали A6986H3V3
подробное описание детали  Automotive 38 V, 2 A synchronous step-down switching regulator with 30 μA
PDF  71 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

A6986H3V3 датащи(HTML) 53 Page - STMicroelectronics

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8
Application board
The reference evaluation board schematic is shown in the figure below.
Figure 52. Evaluation board schematic
signal GND
power GND
10V
size 0805
size XAL5030 Coilcraft
+
L1A
NM
J5
R4
0
TP3
SYNCH
R11
10
J3
C8
330p
TP8
VIN_EMI
L1
10uH
R10
NM
R2
NM
C6
10nF
+
R6
1M
C4
2.2p
J2
TP7
GND
TP1
SS/INH
R9
82k
R3
NM
TP2
RST
R5
NM
C11
NM
R1
0
R7
240k
U1
A6986H
RST
1
VCC
2
SS/INH
3
SYNCH
4
FSW
5
MLF
6
COMP
7
DELAY
8
FB
9
SGND
10
PGND
11
PGND
12
LX
13
LX
14
VIN
15
VBIAS
16
EP
17
TP6
GND
J1
C7
NM
TP4
VOUT
J4
C5
68nF
L3
MPZ2012S221A
TP5
VIN
R8
75k
C3
470nF
L2
4.7uH VIN_FLT
PGND
VIN_FLT
PGND
The additional input filter (C16, L3, C15, L2, C14) limits the conducted emission on the power supply (refer to
Section 10.1 HTSSOP16 package information).
Table 18. Bill of material (communal parts)
Reference
Part number
Description
Manufacturer
C1, C9, C10
CGA5L3X5R1H106K
10 µF - 1206 - 50 V - X5R -
10%
TDK
C2
CGA4J3X7R1H105K
1 µF - 0805 - 50 V - X7R -
10%
TDK
C3
-
470 nF - 10 V - 0603
C4,C7,C8
-
See Table 19. A6986H 3V3
demonstration board BOM,
Table 20. A6986H 5V
demonstration board BOM,
and Table 21. A6986H adj.
demonstration board BOM
C5
-
68 nF - 10 V - 0603
C6
-
10 nF - 10 V - 0603
C14, C15, C16
CGA5L3X7R1H475K
4.7 µF - 1206 - 50 V - X7R -
10%
TDK
C11, C13, C13A
Not mounted
R1, R4
0 Ω - 0603
R6
1 MΩ - 1%- 0603
A6986H
Application board
DS12861 - Rev 3
page 53/71



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