音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LX1675 Datasheet

  • LX1675

  • Microsemi Corporation [Multiple Output LoadSHARE⑩ PWM PROD...

  • 324.63KB

  • MICROSEMI

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書(shū)

PDF預(yù)覽

LX1675
TM
廬
Multiple Output LoadSHARE鈩?PWM
P
RODUCTION
D
ATA
S
HEET
DESCRIPTION
KEY FEATURES
Four Independently Regulated
Outputs
Single Input Supply with Wide
Voltage Range: 4.5-24V
Outputs As Low As 0.8V
Generated From a Precision
Internal Reference
Selectable PWM Frequency of
300KHz or 600KHz
Buffered Reference Voltage
Output
Multiphase Output Reduces
Need for Large Input
Capacitance at High Currents
Integrated High Current
MOSFET Drivers
Independent Soft-Start and
Power Sequencing
Adjustable Linear Regulator
Driver Output
No Current-Sense Resistors
DDR Termination Compliant
RoHS Compliant for Pb Free
APPLICATIONS
The LX1675 is a highly integrated
power supply controller IC featuring
three voltage mode PWM switching
regulator stages with an additional
onboard linear regulator driver.
Two of the constant frequency PWM
phases can be easily configured for a
single Bi-Phase high current output or
operated as two independently regulated
outputs. All outputs (PWM phases and
LDO) have separate, programmable soft-
start sequencing. This versatility yields
either three or four independently
regulated outputs with full power
sequencing capability giving system
designers the ultimate flexibility in power
supply design.
Current limit for each PWM regulator
is provided by monitoring the voltage
drop across the lower MOSFET power
stage during conduction, utilizing the
Rds(on) impedance. This eliminates the
need for expensive current sense
resistors. Once current limit has been
reached and persist for 4 clock cycles, the
output is shut off and Soft Start is
initialized to force a hiccup mode for
protection.
High current MOSFETs can be directly
driven to provide an LDO output of 5A
and 15A for each PWM controller. This
is useful for I/O, memory, termination,
and other supplies surrounding today鈥檚
micro-processor based designs.
The LX1675 accepts a wide range of
supply voltage ranging from 4.5V to 24V.
Each PWM regulator output voltage is
programmed via a simple voltage-divider
network.
The LX1675 design gives
engineers maximum flexibility with
respect to the MOSFET supply. Each
phase can utilize different supply voltages
for efficient use of available supply rails.
Additionally, when two phases are
configured in Bi-Phase output, the
LoadSHARE
鈩?/div>
topology
can
be
programmed via inductor ESR selection.
The split phase operation reduces power
loss, noise due to the ESR of the input
capacitors and allows for reduction in
capacitance values while maximizing
regulator response time. The internal
reference voltage is buffered and brought
out on a separate pin to be used as an
external reference voltage.
WWW .
Microsemi
.C
OM
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
LoadSHARE is a Trademark of Microsemi Corporation
Protected by U.S. Patents 6,285,571 and 6,292,378
Multi-Output Power Supplies
Video Card Power Supplies
PC Peripherals
Portable PC Processor and I/O
Supply
PACKAGE ORDER INFO
PRODUCT HIGHLIGHT
VIN 4.5V to 24V
T
A
(擄C)
VIN
VSLR
LDGD
VOUT4
LQ
Plastic MLPQ
38-Pin
LX1675CLQ
LX1675ILQ
RoHS Compliant / Pb-free
VCCL
HOX
VCX
5碌h
0 to 85
-40 to 85
VOUT1, 2, 3
HRX
LDFB
SSX
AGND
EOX
LX1675
CSX
LOX
Note: Available in Tape & Reel. Append the
letters 鈥淭R鈥?to the part number. (i.e.
LX1675CLQ-TR)
LX1675
LX1675
PGX
FBX
ONE OF 3 PWM SECTIONS
Copyright
漏
2004
Rev. 1.2a, 2006-02-16
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1

LX1675相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    ADVANCED PWM CONTROLLER
    MICROSEMI ...
  • 英文版
    ADVANCED PWM CONTROLLER
    MICROSEMI
  • 英文版
    ADVANCED PWM CONTROLLER
    MICROSEMI ...
  • 英文版
    SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI ...
  • 英文版
    SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI
  • 英文版
    SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI ...
  • 英文版
    DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI
  • 英文版
    DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI ...
  • 英文版
    DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI
  • 英文版
    DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
    MICROSEMI ...
  • 英文版
    PROGRAMMABLE MULTIPLE OUTPUT DC:DC CONTROLLER
    MICROSEMI
  • 英文版
    PROGRAMMABLE MULTIPLE OUTPUT DC:DC CONTROLLER
    MICROSEMI ...
  • 英文版
    PROGRAMMABLE DC : DC CONTROLLER
    MICROSEMI
  • 英文版
    PROGRAMMABLE DC : DC CONTROLLER
    MICROSEMI ...
  • 英文版
    5 - BIT PROGRAMMABLE VOTAGE REFERENCE
    MICROSEMI
  • 英文版
    5 - BIT PROGRAMMABLE VOTAGE REFERENCE
    MICROSEMI ...
  • 英文版
    Multiple Output LoadSHARE? PWM
    MICROSEMI
  • 英文版
    Multiple Output LoadSHARE? PWM
    MICROSEMI ...
  • 英文版
    Multiple Output LoadSHARE PWM
    MICROSEMI
  • 英文版
    Multiple Output LoadSHARE PWM
    MICROSEMI ...

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見(jiàn)，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見(jiàn)一經(jīng)采納，將有感恩紅包奉上哦！