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NCP5423 fiches techniques PDF

ON Semiconductor - (NCP5422A / NCP5423) Dual Out-of-Phase Synchronous Buck Controller

Numéro de référence NCP5423
Description (NCP5422A / NCP5423) Dual Out-of-Phase Synchronous Buck Controller
Fabricant ON Semiconductor 
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NCP5423 fiche technique
NCP5422A, NCP5423
Dual Out−of−Phase
Synchronous
Buck Controller
with Current Limit
The NCP5422A/3 is a dual N−channel synchronous buck regulator
controller. It contains all the circuitry required for two independent
buck regulators and utilizes the V2t control method to achieve the
fastest possible transient response and best overall regulation, while
using the least number of external components. The NCP5422A/3
features out−of−phase synchronization between the channels,
reducing the input filter requirement. The NCP5422A/3 also provides
undervoltage lockout, Soft−Start, built in adaptive non−overlap time
and hiccup mode overcurrent protection.
Features
V2 Control Topology
Hiccup Mode Overcurrent Protection
150 ns Transient Response
Programmable Soft−Start
100% Duty Cycle for Enhanced Transient Response
150 kHz to 600 kHz Programmable Frequency Operation
Switching Frequency Set by Single Resistor
www.DataSheet4U.com
Out−Of−Phase Synchronization Between Channels
Undervoltage Lockout
Both Gate Drive Outputs Held Low During Fault Condition
Pb−Free Packages are Available
http://onsemi.com
16
1
SO−16
AD SUFFIX
CASE 751B
MARKING DIAGRAMS AND
PIN CONNECTIONS
1
GATE(H)1
GATE(L)1
GND
BST
IS+1
IS−1
VFB1
COMP1
16
GATE(H)2
GATE(L)2
VCC
ROSC
IS+2
IS−2
VFB2
COMP2
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping
NCP5422ADR2
SO−16 2500 Tape & Reel
NCP5422ADR2G SO−16 2500 Tape & Reel
(Pb−Free)
NCP5423DR2G
SO−16 2500 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.
© Semiconductor Components Industries, LLC, 2006
April, 2006 − Rev. 7
1
Publication Order Number:
NCP5422A/D

PagesPages 16
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