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NCP5269 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCP5269
Description  Synchronous Buck Controller with Auto Power Controller with Auto Power Inputs for System Agent
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP5269 Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 3
1
Publication Order Number:
NCP5269/D
NCP5269
Synchronous Buck
Controller with Auto Power
Saving Mode and 2-Bit VID
Inputs for System Agent
NCP5269 is a synchronous buck controller that is optimized for
converting the battery voltage or adaptor voltage into power supply
rails required in notebook and desktop system. NCP5269 is designed
for applications requiring dynamically selected slew−rate controlled
output voltages. The soft−start is programmed by a single capacitor.
Voltage identification logic−inputs select four resistor programmed
set−point reference voltages that directly set the output voltage of the
converter between 0.65 V to 1.5 V. NCP5269 supports high efficiency,
fast transient response and provides power good signal. ON
Semiconductor proprietary adaptive−ripple control enables seamless
transition from CCM to DCM, where converter runs at reduced
switching frequency with much higher efficiency. The part operates
with input voltage ranging from 3.3 V to 28 V. NCP5269 is available
in a 20−pin 3 mm x 3 mm QFN package.
Features
Wide Input Voltage Range: from 3.3 V to 28 V
Three Selectable Fixed Frequency 300 kHz, 400 kHz or 600 kHz
2−Bit VID Selects Four Independent Voltages from 0.65 V to 1.5 V
±1.0% System Accuracy
Differential Remote Output Voltage Sensing
Soft Transient Control Reduces Inrush Current and Audio Noise
Build−in Power−Good Masking Supports Voltage Identification
(VID) On−The−Fly Transients
Simple Resistor Programming Voltage Levels
Programmable Soft−Start through a Single Capacitor
Automatic Power−Saving Mode
Input Supply Voltage Feed Forward Control
Resistive or Lossless Inductor’s DCR Current Sensing
Over−Temperature Protection
Built−in Adaptive Gate Drivers
Output Discharge Operation
Built−in Over−Voltage, Under−Voltage and Over−Current Protection
and Power Good Output
This is a Pb−Free Device
Applications
Notebooks, Desktops & Servers
I/O Supplies
System Power Supplies
Graphic Cards
20 PIN QFN, 3x3
MN SUFFIX
CASE 485BC
Device
Package
Shipping
ORDERING INFORMATION
NCP5269MNTWG
QFN20
(Pb−Free)
3000 /
Tape & Reel
MARKING
DIAGRAM
5269
= Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
http://onsemi.com
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
PIN CONNECTIONS
(Top View)
(Note: Microdot may be in either location)
5269
ALYWG
G
BST
GH
SWN
VCCP
GL/FSET
EN
VCC
VID1
VID0
V3
AGND
1


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