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ADP2105ACPZ-3.3-R7 bảng dữ liệu(PDF) 27 Page - Analog Devices

tên linh kiện ADP2105ACPZ-3.3-R7
Giải thích chi tiết về linh kiện  1 Amp/1.5 Amp/2 Amp Synchronous, Step-Down DC-to-DC Converters
PDF  32 Pages
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nhà sản xuất  AD [Analog Devices]
Trang chủ  http://www.analog.com
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ADP2105ACPZ-3.3-R7 bảng dữ liệu(HTML) 27 Page - Analog Devices

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ADP2105/ADP2106/ADP2107
Rev. 0 | Page 27 of 32
EVALUATION BOARD
EVALUATION BOARD SCHEMATIC (ADP2107-1.8)
J1
U1
EN
VCC
INPUT VOLTAGE = 2.7V TO 5.5V
OUTPUT VOLTAGE = 1.8V, 2A
VOUT
VIN
GND
OUT
VCC
OUT
2
1
GND
VCC
ADP2107-1.8
EN
SS
LX2
AGND
COMP
PGND
GND
GND
GND
NC
PADDLE
LX1
PWIN2
1
2
3
4
12
11
10
9
16
15
14
13
5
6
7
8
17
R2
100kΩ
C6
68pF
C5
1nF
R1
140kΩ
C2
10µF1
L12
2µH
C3
22µF1
C4
22µF1
R4
0Ω
R5
NS
R3
10Ω
C7
0.1µF
C1
10µF1
NC = NO CONNECT
1 MURATA X5R 0805
10μF: GRM21BR61A106KE19L
22μF: GRM21BR60J226ME39L
2 2μH INDUCTOR D62LCB TOKO
OUT_SENSE
PWIN1
IN
GND
Figure 51. Evaluation Board Schematic of the ADP2107-1.8 (Bold Traces Are High Current Paths)
RECOMMENDED PCB BOARD LAYOUT (EVALUATION BOARD LAYOUT)
GROUND
GROUND
CONNECT THE GROUND RETURN OF
ALL POWER COMPONENTS SUCH AS
INPUT AND OUTPUT CAPACITORS TO
THE POWER GROUND PLANE.
POWER GROUND
PLANE
OUTPUT CAPACITOR
OUTPUT CAPACITOR
COUT
INPUT CAPACITOR
INPUT CAPACITOR
OUTPUT
VOUT
CIN
COUT
CIN
JUMPER TO ENABLE
ENABLE
100kΩ PULL-DOWN
VIN
INPUT
PLACE THE FEEDBACK RESISTORS AS
CLOSE TO THE FB PIN AS POSSIBLE.
ADP2105/ADP2106/ADP2107
RTOP RBOT
CSS
RCOMP
CCOMP
PLACE THE COMPENSATION
COMPONENTS AS CLOSE TO
THE COMP PIN AS POSSIBLE.
ANALOG GROUND PLANE
CONNECT THE GROUND RETURN OF ALL
SENSITIVE ANALOG CIRCUITRY SUCH AS
COMPENSATION AND OUTPUT VOLTAGE
DIVIDER TO THE ANALOG GROUND PLANE.
LX
LX
PGND
INDUCTOR (L)
POWER GROUND
Figure 52. Recommended Layout of Top Layer of ADP2105/ADP2106/ADP2107



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