Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

NCP5424 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCP5424
Description  Dual Synchronous Buck Controller with Input Current Sharing
Download  18 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo 

NCP5424 Datasheet(HTML) 1 Page - ON Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 1 / 18 page
background image
© Semiconductor Components Industries, LLC, 2005
March, 2005 − Rev. 4
1
Publication Order Number:
NCP5424/D
NCP5424
Dual Synchronous
Buck Controller with Input
Current Sharing
The NCP5424 is a flexible dual N−Channel synchronous buck
controller utilizing V2
t control for fast transient response and
excellent line and load regulation. This highly versatile controller can
be configured as a single two phase output converter that draws
programmable amounts of current from two different input voltages or
all current from one supply. The NCP5424 can also be configured as
two independent out−of−phase controllers.
Using the NCP5424 in a current sharing input configuration is ideal
for applications where more power is required than is available from
one supply, such as video cards or other plug−in boards. When
configured as a dual output controller, the output of one controller can
be divided down and used as the reference for the second controller.
This tracking capability is useful in applications such as Double Data
Rate (DDR) Memory power where the termination voltage must track
VDD.
The NCP5424 provides a cycle−to−cycle current limit on
Controller 2 allowing the system to handle transient overcurrent
events and a hiccup mode overcurrent protection on Controller 1
allowing lossless short circuit protection. In addition, the NCP5424
provides Soft−Start, undervoltage lockout, and built−in adaptive FET
nonoverlap time to prevent shoot through.
Features
Hiccup Mode Current Limit (Controller 1)
Cycle−to−Cycle Current Limit (Controller 2)
Programmable Soft−Start
100% Duty Cycle for Enhanced Transient Response
150 kHz to 600 kHz Programmable Frequency Operation
Switching Frequency Set by Single Resistor
Out−Of−Phase Synchronization Between the Channels Reduces the
Input Filter Requirement
Undervoltage Lockout
Pb−Free Packages are Available*
Applications
Video Graphics Card
DDR Memory
High Current (Two−Phase) Power Supplies
Dual Output DC−DC Converters
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
SOIC−16
D SUFFIX
CASE 751B
A
= Assembly Location
WL = Wafer Lot
Y
= Year
WW = Work Week
VFB1
COMP1
IS+1
GATE(H)1
PIN CONNECTIONS AND
MARKING DIAGRAM
GATE(L)1
GND
BST
IS−
1
16
GATE(H)2
GATE(L)2
VCC
ROSC
IS+2
VFB+2
VFB−2
COMP2
16
1
NCP5424DR2
Device
Package
Shipping
ORDERING INFORMATION
NCP5424D
SOIC−16
48 Units/Rail
SOIC−16
2500 Tape & Reel
NCP5424DG
SOIC−16
(Pb−Free)
48 Units/Rail
NCP5424DR2G
SOIC−16
(Pb−Free)
2500 Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
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