전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

ADP2325ACPZ-R7 데이터시트(PDF) 23 Page - Analog Devices

부품명 ADP2325ACPZ-R7
상세설명  Dual 5 A, 20 V Synchronous Step-Down
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

ADP2325ACPZ-R7 데이터시트(HTML) 23 Page - Analog Devices

Back Button ADP2325ACPZ-R7 Datasheet HTML 19Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 20Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 21Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 22Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 23Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 24Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 25Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 26Page - Analog Devices ADP2325ACPZ-R7 Datasheet HTML 27Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 23 / 32 page
background image
Data Sheet
ADP2325
Rev. 0 | Page 23 of 32
The ADP2325 uses a transconductance amplifier for the error
amplifier to compensate the system. Figure 51 shows the
simplified peak current mode control small signal circuit.
Figure 51. Simplified Peak Current Mode Control Small Signal Circuit
The compensation components, RC and CC, contribute a zero,
and the optional CCP and RC contribute an optional pole.
The closed-loop transfer equation is as follows:
(s)
G
s
C
C
C
C
R
s
s
C
R
C
C
g
R
R
R
(s)
T
VD
CP
C
CP
C
C
C
C
CP
C
m
TOP
BOT
BOT
V
×


×
+
×
×
+
×
×
×
+
×
+
−
×
+
=
1
1
The following design guidelines show how to select the compen-
sation components, RC, CC, and CCP, for ceramic output capacitor
applications.
4. Determine the cross frequency (fC). Generally, the fC is
between fSW/12 and fSW/6.
5. RC can be calculated by using the following equation:
VI
m
C
OUT
OUT
C
A
g
f
C
V
R
×
×
×
×
×
×
=
V
6
.
0
2 π
6. Place the compensation zero at the domain pole (fP).
CC can be determined by
(
)
C
OUT
ESR
C
R
C
R
R
C
×
+
=
7. CCP is optional. It can be used to cancel the zero caused by
the ESR of the output capacitor.
C
OUT
ESR
CP
R
C
R
C
×
=
The ADP2325 has an internal 10 pF capacitor at the COMPx
pin; therefore, if CCP is smaller than 10 pF, no external capacitor
is required.
RESR
R
+
–
g
m
RC
CCP
COUT
CC
RTOP
RBOT
–
+
AVI
VOUT
VCOMP
VOUT



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
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