전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

ACE735E 데이터시트(PDF) 5 Page - ACE Technology Co., LTD.

부품명 ACE735E
상세설명  36V Input Standoff Voltage, 1.5A Step-Down Converter
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ACE [ACE Technology Co., LTD.]
홈페이지  http://www.ace-ele.com
Logo ACE - ACE Technology Co., LTD.

ACE735E 데이터시트(HTML) 5 Page - ACE Technology Co., LTD.

  ACE735E Datasheet HTML 1Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 2Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 3Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 4Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 5Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 6Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 7Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 8Page - ACE Technology Co., LTD. ACE735E Datasheet HTML 9Page - ACE Technology Co., LTD. Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 10 page
background image
ACE735E
36V Input Standoff Voltage, 1.5A Step-Down Converter
VER 1.1
5
FUNCTIONAL DESCRIPTIONS
Loop Operation
The ACE735E is a wide input range, high-efficiency, DC-to-DC step-down switching regulator, capable
of delivering up to 1.5A of output current, integrated with a 300mΩ high side MOSFET. It uses a PWM
current-mode control scheme. An error amplifier integrates error between the FB signal and the internal
reference voltage. The output of the integrator is then compared to the sum of a current-sense signal and
the slope compensation ramp. This operation generates a PWM signal that modulates the duty cycle of
the power MOSFETs to achieve regulation for output voltage.
Light Load Operation
Traditionally, a fixed constant frequency PWM DC-DC regulator always switches even when the output
load is small. When energy is shuffling back and forth through the power MOSFETs, power is lost due to
the finite RDSONs of the MOSFETs and parasitic capacitances. At light load, this loss is prominent and
efficiency is therefore very low. ACE735E employs a proprietary control scheme that improves efficiency
in this situation by enabling the device into a power save mode during light load,thereby extending the
range of high efficiency operation.
APPLICATION INFORMATION
Setting Output Voltages
Output voltages are set by external resistors. The FB threshold is 0.8V.
RTOP = RBOTTOM x [(VOUT / 0.8) - 1]
Inductor Selection
The peak-to-peak ripple is limited to 30% of the maximum output current. This places the peak current
far enough from the minimum overcurrent trip level to ensure reliable operation while providing enough
current ripples for the current mode converter to operate stably. In this case, for 1.5A maximum output
current, the maximum inductor ripple current is 500 mA. The inductor size is estimated as following
equation:
LIDEAL=(VIN(MAX)-VOUT)/IRIPPLE*DMIN*(1/FOSC) Therefore, for VOUT=5V,
The inductor values is calculated to be L = 13μH. Chose 10μH or 15μH
For VOUT =3.3V,
The inductor values is calculated to be L = 9.2μH. Chose 10μH
Output Capacitor Selection
For most applications a no
minal 22μF or larger capacitor is suitable. The ACE735E internal
compensation is designed for a fixed corner frequency that is equal to
For example, for VOUT
=5V, L=15μH, C
OUT
=22μF.
The output capacitor keeps output ripple small and ensures control-loop stability. The output capacitor
must also have low impedance at the switching frequency. Ceramic, polymer, and tantalum capacitors are
suitable, with ceramic exhibiting the lowest ESR and high-frequency impedance. Output ripple with a
ceramic output capacitor is approximately as follows:
VRIPPLE = IL(PEAK)
[1 / (2π x f
OSC x COUT)]
If the capacitor has significant ESR, the output ripple component due to capacitor ESR is as follows:
VRIPPLE(ESR) = IL(PEAK) x ESR


유사한 부품 번호 - ACE735E

제조업체부품명데이터시트상세설명
logo
ACE Technology Co., LTD...
ACE7352N ACE-ACE7352N Datasheet
192Kb / 3P
   40V Input Standoff Voltage, 2A Step-Down Converter
VER 1.1
ACE7353N ACE-ACE7353N Datasheet
187Kb / 3P
   High Efficiency, 3A 40V Input Synchronous Step-Down Regulator
VER 1.1
ACE7355YFL+H ACE-ACE7355YFL+H Datasheet
231Kb / 4P
   5.5V, 6A, 1.2MHz, High-Efficiency Buck Converter
VER 1.1
ACE7356N ACE-ACE7356N Datasheet
190Kb / 3P
   High Efficiency, 85V Input0.6A Asynchronous Step Down Regulator
VER 1.1
ACE7358F ACE-ACE7358F Datasheet
190Kb / 3P
   High Efficiency, 1.2MHz, 52V Input, 0.8A Asynchronous Step Down Regulator
VER 1.2
More results

유사한 설명 - ACE735E

제조업체부품명데이터시트상세설명
logo
ETA SOLUTIONS CO. LIMIT...
ETA2821 ETA-ETA2821 Datasheet
199Kb / 1P
   42V Input Standoff Voltage, 1.5A Step-Down Converter in SOT23-6
logo
Monolithic Power System...
MP4459 MPS-MP4459 Datasheet
451Kb / 17P
   1.5A, 4MHz, 36V Step-Down Converter
logo
SHANGHAI BELLING CO., L...
BL9641 BELLING-BL9641 Datasheet
1Mb / 7P
   42V Input Standoff Voltage, 0.7A Step-Down Converter
logo
Leshan Radio Company
LR9641 LRC-LR9641 Datasheet
861Kb / 8P
   42V Input Standoff Voltage, 0.7A Step-Down Converter
logo
ACE Technology Co., LTD...
ACE736E ACE-ACE736E Datasheet
644Kb / 9P
   42V Input Standoff Voltage, 0.4A Step-Down Converter
VER 1.1
logo
SHANGHAI BELLING CO., L...
BL9641B BELLING-BL9641B Datasheet
473Kb / 7P
   42V Input Standoff Voltage, 0.4A Step-Down Converter
logo
ACE Technology Co., LTD...
ACE7352N ACE-ACE7352N Datasheet
192Kb / 3P
   40V Input Standoff Voltage, 2A Step-Down Converter
VER 1.1
logo
ETA SOLUTIONS CO. LIMIT...
ETA2845 ETA-ETA2845 Datasheet
138Kb / 1P
   42V Input Standoff Voltage, 0.4A Synchronous Step-Down Converter
logo
Monolithic Power System...
MPQ4459 MPS-MPQ4459 Datasheet
398Kb / 17P
   Industrial Grade,1.5A, 4MHz, 36V Step-Down Converter
logo
Active-Semi, Inc
ACT4012A ACTIVE-SEMI-ACT4012A_08 Datasheet
299Kb / 10P
   Wide Input 1.5A Step Down Converter
Rev0, 16-May-08
More results


Html Pages

1 2 3 4 5 6 7 8 9 10


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   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