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CS5422 Datasheet

Dual Out of Phase Synchronous Buck Controller

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CS5422
Dual Out−of−Phase
Synchronous
Buck Controller
with Current Limit
The CS5422 is a dual Nchannel synchronous buck regulator
controller. It contains all the circuitry required for two independent
buck regulators and utilizes the V2control method to achieve the
fastest possible transient response and best overall regulation, while
using the least number of external components. The CS5422 features
outofphase synchronization between the channels, reducing the
input filter requirement. The CS5422 also provides undervoltage
lockout, Soft Start, built in adaptive FET nonoverlap and hiccup
mode overcurrent protection. The part is available in a 16 Lead SO
Narrow or 24 Lead Fused SO Wide package allowing the designer to
minimize solution size.
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
OutOfPhase Synchronization Between the Channels Reduces the
Input Filter Requirement
Undervoltage Lockout
Internally Fused Leads available in 24 Lead SO Wide Package
© Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 7
1
http://onsemi.com
16
1
SO16
D SUFFIX
CASE 751B
24
1
SO24L
DWF SUFFIX
CASE 751E
PIN CONNECTIONS AND
MARKING DIAGRAMS
SO16
1
GATE(H)1
16
GATE(H)2
GATE(L)1
GATE(L)2
GND
BST
IS+1
VCC
ROSC
IS+2
IS1
IS2
VFB1
COMP1
VFB2
COMP2
1 SO24L 24
GATE(H)1
GATE(H)2
GATE(L)1
GATE(L)2
PGND
BST
LGND
LGND
VCC
ROSC
LGND
LGND
LGND
LGND
LGND
LGND
IS+1
IS+2
IS1
IS2
VFB1
COMP1
VFB2
COMP2
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS5422GD16
CS5422GDR16
CS5422GDWF24
CS5422GDWFR24
SO16
SO16
SO24L
SO24L
48 Units/Rail
2500 Tape & Reel
31 Units/Rail
1000 Tape & Reel
Publication Order Number:
CS5422/D


  ON Semiconductor Electronic Components Datasheet  

CS5422 Datasheet

Dual Out of Phase Synchronous Buck Controller

No Preview Available !

CS5422
Figure 1. Demonstration Circuit Schematic
http://onsemi.com
2


Part Number CS5422
Description Dual Out of Phase Synchronous Buck Controller
Maker ON Semiconductor
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