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CS5422GDWFR24 Datasheet PDF : 17 Pages
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CS5422
Dual Out−of−Phase
Synchronous
Buck Controller
with Current Limit
The CS5422 is a dual N−channel synchronous buck regulator
controller. It contains all the circuitry required for two independent
buck regulators and utilizes the V2™ control method to achieve the
fastest possible transient response and best overall regulation, while
using the least number of external components. The CS5422 features
out−of−phase synchronization between the channels, reducing the
input filter requirement. The CS5422 also provides undervoltage
lockout, Soft Start, built in adaptive FET non−overlap 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
• Out−Of−Phase 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
1
July, 2006 − Rev. 7
http://onsemi.com
16
1
24
1
SO−16
D SUFFIX
CASE 751B
SO−24L
DWF SUFFIX
CASE 751E
PIN CONNECTIONS AND
MARKING DIAGRAMS
SO−16
1
GATE(H)1
16
GATE(H)2
GATE(L)1
GATE(L)2
GND
BST
IS+1
VCC
ROSC
IS+2
IS−1
IS−2
VFB1
COMP1
VFB2
COMP2
SO−24L
1
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
IS−1
IS−2
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
SO−16
SO−16
SO−24L
SO−24L
48 Units/Rail
2500 Tape & Reel
31 Units/Rail
1000 Tape & Reel
Publication Order Number:
CS5422/D
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