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CS5212GDR14G Scheda tecnica(PDF) 1 Page - ON Semiconductor

Il numero della parte CS5212GDR14G
Spiegazioni elettronici  Low Voltage Synchronous Buck Controller
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Produttore elettronici  ONSEMI [ON Semiconductor]
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© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 4
1
Publication Order Number:
CS5212/D
CS5212
Low Voltage Synchronous
Buck Controller
The CS5212 is a low voltage synchronous buck controller. It
contains all required circuitry for a synchronous buck converter using
external N−Channel MOSFETs. High current internal gate drivers are
capable of driving high gate capacitance of low RDS(on) NFETs for
better efficiency. The V2
t control architecture is used to achieve
unmatched transient response, the best overall regulation and the
simplest loop compensation.
Additionally, the CS5212 provides overcurrent protection,
undervoltage lockout, soft−start, built−in adaptive non−overlap, and
an adjustable fixed frequency range of 150 kHz to 750 kHz, which
gives the designer more flexibility to make efficiency and component
size trade offs. The CS5212 will also operate over a 3.1 V to 7.0 V
range using either single or dual input voltage.
Features
Switching Regulator Controller
N−Channel Synchronous Buck Design
V2 Control Topology
200 ns Transient Response
Programmable Fixed Frequency of 150 kHz−750 kHz
1.0 V 1.5% Internal Reference
Lossless Inductor Sensing Overcurrent Protection
Hiccup Mode Short Circuit Protection
Programmable Soft−Start
40 ns GATE Rise and Fall Times (3.3 nF Load)
70 ns Adaptive FET Nonoverlap Time
Differential Remote Sense Capability
Available in Industrial and Commerical Temperature Grades
System Power Management
3.3 V Operation
Undervoltage Lockout
On/Off Control Through Use of the COMP Pin
Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING DIAGRAM
CS5212x =
Device Code
x = E or G
A
=
Assembly Location
WL
=
Wafer Lot
Y
=
Year
WW
=
Work Week
G=
Pb−Free Package
1
GATE(L)
PGND
SGND
VFB
GATE(H)
IS+
IS−
ROSC
VCC
PIN CONNECTIONS
VC
BST
LGND
VFFB
COMP
SOIC−14
D SUFFIX
CASE 751A
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
CS5212x
AWLYWWG
1
14


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