参数资料
型号: ADP1882ARMZ-0.3-R7
厂商: Analog Devices Inc
文件页数: 33/40页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 10-MSOP
标准包装: 1
PWM 型: 电流模式
输出数: 1
频率 - 最大: 300kHz
占空比: 84%
电源电压: 2.75 V ~ 20 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 标准包装
其它名称: ADP1882ARMZ-0.3-R7DKR

ADP1882/ADP1883
LAYOUT CONSIDERATIONS
The performance of a dc-to-dc converter depends highly on how
the voltage and current paths are configured on the printed
circuit board (PCB). Optimizing the placement of sensitive
analog and power components are essential to minimize output
ripple, maintain tight regulation specifications, and reduce
PWM jitter and electromagnetic interference.
Figure 83 shows the schematic of a typical ADP1882/ADP1883
used for a high power application. Blue traces denote high current
pathways. VIN, PGND, and V OUT traces should be wide and
possibly replicated, descending down into the multiple layers.
Vias should populate, mainly around the positive and negative
terminals of the input and output capacitors, alongside the
source of Q1/Q2, the drain of Q3/Q4, and the inductor.
HIGH VOLTAGE INPUT
V DD = 5V
JP1
HIGH VOLTAGE INPUT
V IN = 12V
C F
70pF
C C
700pF
R C
38.1k ?
1
ADP1882/
ADP1883
VIN BST 10
C12
100nF
Q1
C3
22μF
Q2
C4
22μF
C5
22μF
C6
22μF
C7
22μF
C8
N/A
C22
C23
R1 18.75k ?
V OUT
R2
15k ?
2
3
4
COMP/EN
FB
GND
SW 9
DRVH 8
PGND 7
R4
0 ?
Q3
Q4
1.0μH
R6
2 ?
C13
C20
270μF
+
C21
270μF
V OUT = 1.8V, 15A
+ +
270μF 270μF
+
C24
270μF
+
C2
0.1μF
C1
1μF
5
VDD
DRVL 6
R5
100k ?
1.5nF
+ C14 TO C19
N/A
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
22μF, 25V, X7R, 1210 GRM32ER71E226KE15 L
PANASONIC: (OUTPUT CAPACITORS)
270μF SP-SERIES, 4V, 7m ? EEFUE0G271LR
INFINEON MOSFETs (NO CONNECTION FOR Q2/Q4:
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
WURTH INDUCTORS:
1μH, 3.3m ? , 20A 7443552100
Figure 83. ADP1882 High Current Evaluation Board Schematic (Blue Traces Indicate High Current Paths)
Rev. 0 | Page 33 of 40
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相关代理商/技术参数
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