数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

SS23 数据表(PDF) 6 Page - Monolithic Power Systems

部件名 SS23
功能描述  2A, 32V, 330KHz Step-Down Converter
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

SS23 数据表(HTML) 6 Page - Monolithic Power Systems

Back Button SS23 Datasheet HTML 2Page - Monolithic Power Systems SS23 Datasheet HTML 3Page - Monolithic Power Systems SS23 Datasheet HTML 4Page - Monolithic Power Systems SS23 Datasheet HTML 5Page - Monolithic Power Systems SS23 Datasheet HTML 6Page - Monolithic Power Systems SS23 Datasheet HTML 7Page - Monolithic Power Systems SS23 Datasheet HTML 8Page - Monolithic Power Systems SS23 Datasheet HTML 9Page - Monolithic Power Systems SS23 Datasheet HTML 10Page - Monolithic Power Systems Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 11 page
background image
MP1591 – 2A, 32V, 330KHz STEP-DOWN CONVERTER
MP1591 Rev. 2.3
www.MonolithicPower.com
6
9/27/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
The input capacitor value should be greater
than 10µF. The capacitor can be electrolytic,
tantalum or ceramic. However, since it absorbs
the input switching current it requires an
adequate ripple current rating. Its RMS current
rating should be greater than approximately 1/2
of the DC load current.
For insuring stable operation C1 should be
placed as close to the IC as possible.
Alternately, a smaller high quality ceramic
0.1µF capacitor may be placed closer to the IC
and a larger capacitor placed farther away. If
using this technique, it is recommended that the
larger capacitor be a tantalum or electrolytic
type. All ceramic capacitors should be placed
close to the MP1591.
Output Capacitor (C5)
The output capacitor is required to maintain the
DC output voltage. Low ESR capacitors are
preferred to keep the output voltage ripple low.
The characteristics of the output capacitor also
affect the stability of the regulation control
system. Ceramic, tantalum or low ESR
electrolytic capacitors are recommended. In the
case of ceramic capacitors, the impedance at
the switching frequency is dominated by the
capacitance, and so the output voltage ripple is
mostly independent of the ESR. The output
voltage ripple is estimated to be:
2
SW
LC
IN
RIPPLE
f
f
V
4
.
1
V
⎟⎟
⎜⎜
×
×
Where VRIPPLE is the output ripple voltage, fLC is
the resonant frequency of the LC filter, fSW is the
switching frequency.
In the case of tantalum or low-ESR electrolytic
capacitors, the ESR dominates the impedance
at the switching frequency, and so the output
ripple is calculated as:
ESR
RIPPLE
R
I
V
×
Where VRIPPLE is the output voltage ripple and
RESR is the equivalent series resistance of the
output capacitors.
Output Rectifier Diode (D1)
The output rectifier diode supplies the current to
the inductor when the high-side switch is off. To
reduce losses due to the diode forward voltage
and recovery times, use a Schottky rectifier.
Table 2 provides some recommended Schottky
rectifiers based on the maximum input voltage
and current rating.
Table 2—Diode Selection Guide
2A Load Current
3A Load Current
VIN
(Max)
Part
Number
Vendor
Part
Number
Vendor
15V
30BQ15
4
B220
1
B320
1
SK23
6
SK33
1, 6
20V
SR22
6
SS32
3
20BQ030
4
B330
1
B230
1
B340L
1
SK23
6
MBRD330
4, 5
SR23
3, 6
SK33
1, 6
30V
SS23
2, 3
SS33
2, 3
21DQ04
4
B340L
1
MBRS240L
5
MBRS340
4
SK24
6
SK34
1, 6
34V
SS24
2, 3
SS34
2, 3
Table 3 lists manufacturer’s websites.
Table 3—Schottky Diode Manufacturers
#
Vendor
Web Site
1
Diodes, Inc.
www.diodes.com
2
Fairchild Semiconductor
www.fairchildsemi.com
3
General Semiconductor
www.gensemi.com
4
International Rectifier
www.irf.com
5
On Semiconductor
www.onsemi.com
6
Pan Jit International
www.panjit.com.tw
Choose a rectifier whose maximum reverse
voltage rating is greater than the maximum
input voltage, and whose current rating is
greater than the maximum load current.


类似零件编号 - SS23

制造商部件名数据表功能描述
logo
Zowie Technology Corpor...
SS23 ZOWIE-SS23 Datasheet
51Kb / 2P
   SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
logo
Shenzhen Yixinwei Techn...
SS23 YIXIN-SS23 Datasheet
116Kb / 2P
   SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
logo
Micro Commercial Compon...
SS23 MCC-SS23 Datasheet
223Kb / 4P
   2 Amp Schottky Rectifier 20 to 100 Volts
logo
Vishay Siliconix
SS23 VISHAY-SS23 Datasheet
352Kb / 4P
   Surface Mount Schottky Barrier Rectifier
Revision: 23-Jan-08
logo
SAMYANG ELECTRONICS CO....
SS23 SAMYANG-SS23 Datasheet
1Mb / 2P
   SCHOTTKY BARRIER RECTIFIER
More results

类似说明 - SS23

制造商部件名数据表功能描述
logo
List of Unclassifed Man...
MP1591 ETC2-MP1591 Datasheet
229Kb / 10P
   2A, 32V, 330KHz Step-Down Converter
logo
Monolithic Power System...
MP1591 MPS-MP1591 Datasheet
229Kb / 10P
   2A, 32V, 330KHz Step-Down Converter
EV0020 MPS-EV0020 Datasheet
203Kb / 4P
   2A, 32V, 330KHz Step-Down Converter
MP2374 MPS-MP2374 Datasheet
312Kb / 11P
   6.5V-32V Input, 1A, 330kHz Step-Down Converter
logo
TECHCODE SEMICONDUCTOR,...
TD1519 TECHCODE-TD1519 Datasheet
939Kb / 14P
   2A 32V Synchronous Rectified Step-Down Converter
TD1519A TECHCODE-TD1519A Datasheet
946Kb / 14P
   2A 32V Synchronous Rectified Step-Down Converter
logo
Skyworks Solutions Inc.
AAT1153 SKYWORKS-AAT1153 Datasheet
1Mb / 19P
   2A Step-Down Converter
logo
Advanced Analogic Techn...
AAT1153 ANALOGICTECH-AAT1153_08 Datasheet
685Kb / 19P
   2A Step-Down Converter
AAT1153 ANALOGICTECH-AAT1153 Datasheet
692Kb / 20P
   2A Step-Down Converter
logo
Microsemi Corporation
LX3005 MICROSEMI-LX3005 Datasheet
104Kb / 3P
   2A STEP-DOWN CONVERTER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com