IRFR1018EPBF Datasheet, PDF (1/15 Pages) International Rectifier – HEXFET TM Power MOSFET

NCP5383
2 Phase Buck Controller
with Integrated Gate
Drivers and AVP
The NCP5383 is a two phase buck controller used in low voltage,
high current power supplies. Dual-edge pulse-width modulation
(PWM) combined with inductor current sensing and adaptive voltage
positioning (AVP) reduces system cost by providing the fastest initial
response to transient loads thereby requiring less bulk and ceramic
output capacitors to satisfy transient load-line requirements.
A high performance operational error amplifier is provided, which
allows for easy compensation of the system. Protection features
include overcurrent protection, undervoltage lockout (UVLO),
thermal shutdown and power good monitor.
Features
•ăDual-edge PWM for Fastest Initial Response to Transient Loading
•ăHigh Performance Operational Error Amplifier
•ă1% Internal Reference Voltage Accuracy
•ăPhase-to-Phase Current Balancing
•ă“Lossless” Differential Inductor Current Sensing
•ăDifferential Current Sense Amplifiers for Each Phase
•ăAdaptive Voltage Positioning (AVP)
•ăFrequency Range: 100 kHz – 400 kHz Set by the Resistor
•ăPower Good Output with Internal Delays
•ăProgrammable Soft Start Time
•ăIntegrated Gate Drivers
•ăThis is a Pb-Free Device
Applications
•ăPentium IV Processors
•ăGraphics Cards
•ăLow Voltage, High Current Power Supplies
http://onsemi.com
24 PIN QFN, 4x4
MN SUFFIX
CASE 485L
MARKING
DIAGRAM
1
5383
ALYWG
G
5383
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
R_OSC
I_LIM
V_CC
AGND
SS
COMP
V_CCP
BG2
PGND2
SWN2
TG2
BST2
(Top View)
ORDERING INFORMATION
Device
Package
Shipping^†
NCP5383MNR2G QFN-24 4000 / Tape & Reel
(Pb-Free)
†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.
©Ă Semiconductor Components Industries, LLC, 2007
1
December, 2007 - Rev. 3
Publication Order Number:
NCP5383/D