- 您现在的位置：买卖IC网 > PDF目录298814 > ADP3170JRU-REEL (ANALOG DEVICES INC) SWITCHING CONTROLLER, PDSO20 PDF资料下载
参数资料
| 型号： | ADP3170JRU-REEL |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封装： | TSSOP-20 |
| 文件页数： | 16/16页 |
| 文件大小： | 177K |
| 代理商： | ADP3170JRU-REEL |
REV. 0
ADP3170
–9–
Designing an Inductor
Once the inductance is known, the next step is either to design
an inductor or find a standard inductor that comes as close as
possible to meeting the overall design goals. The first decision
in designing the inductor is to choose the core material. There
are several possibilities for providing low core loss at high fre-
quencies. Two examples are the powder cores (e.g., Kool-M
from Magnetics, Inc.) and the gapped soft ferrite cores (e.g.,
3F3 or 3F4 from Philips). Low frequency powdered iron cores
should be avoided due to their high core loss, especially when
the inductor value is relatively low and the ripple current is high.
Two main core types can be used in this application. Open
magnetic loop types, such as beads, beads on leads, and rods
and slugs, provide lower cost but do not have a focused mag-
netic field in the core. The radiated EMI from the distributed
magnetic field may create problems with noise interference in
the circuitry surrounding the inductor. Closed-loop types,
such as pot cores, PQ, U, and E cores, or toroids, cost more, but
have much better EMI/RFI performance. A good compromise
between price and performance are cores with a toroidal shape.
There are many useful references for quickly designing a power
inductor. Table II gives some examples.
Table II. Magnetics Design References
Magnetic Designer Software
Intusoft (http://www.intusoft.com)
Designing Magnetic Components for High-Frequency DC-DC
Converters
McLyman, Kg Magnetics
ISBN 1-883107-00-08
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
FB
SD
REF
PWRGD
CT
COMP
PGND
DRVH
DRVL
LRDRV
LRFB
VCC
VID3
GND
VID2
VID1
VID0
VID25
CS+
CS–
U1
ADP3170
FROM
CPU
C19
150pF
COC
2.7nF
RB
30.1k
1%
RA
13.7k
1%
C11
1nF
R4
220
R5
220
C8
100pF
C1
1000 F
C2
1000 F
C3
1000 F
C4
1000 F
C5
1000 F
L1
1.7 H
C7
100nF
C6
4.7nF
L1
1 H
Q1
FDB7045L
C12
22 F
Q2
FDB7045L
C13 C14 C15 C16 C17 C18 C19 C20
D1
MBR052LT1
D2
MBR052LT1
5V
12V
5V SB
VTT PWRGD CLK
R1
1k
VCC(CORE)
1.05V – 1.825V
23A
C23
220 F
VCC(CORE) RTN
1.8V SB
1.8V, 200mA
CORE
PWRGD
TO CPU
1000 F
8
RUBYCON ZA SERIES
24m
ESR (EACH)
5V SB
Q6
IRL3103
R6
2.5m
C21
1 F
C22
68pF
R7
10k
Figure 3. 24 A VRM 8.5-Compliant CPU Supply
相关PDF资料 |
PDF描述 |
|---|---|
| ADP3189JCPZ-R7 | SWITCHING CONTROLLER, 5000 kHz SWITCHING FREQ-MAX, QCC40 |
| ADP5022ACBZ-2-R7 | 1.05 A SWITCHING REGULATOR, 3500 kHz SWITCHING FREQ-MAX, PBGA16 |
| ADR02BKS-R | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, PDSO5 |
| ADR35-21AR | ALUMINUM ALLOY, TIN FINISH, WIRE TERMINAL |
| ADS-112/883 | 1-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP3170JRU-REEL7 | 制造商:Analog Devices 功能描述: |
| ADP3170JRUZ-R7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADP3170JRUZ-REEL7 | 功能描述:IC CTRLR VRM 8.5 W/REG 20TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ADP3171 | 制造商:AD 制造商全称:Analog Devices 功能描述:Synchronous Buck Controller with Dual Linear Regulator Controllers |
| ADP3171JR | 制造商:Rochester Electronics LLC 功能描述:1.2V VTT BUCK CNTRLR W/2 LDOS & PWR GOOD - Bulk |
发布紧急采购，3分钟左右您将得到回复。