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CS51313 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. CS51313
Description  Synchronous CPU Buck Controller Capable of Implementing Multiple Linear Regulators
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CS51313 Datasheet(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 8
1
Publication Order Number:
CS51313/D
CS51313
Synchronous CPU
Buck Controller Capable
of Implementing Multiple
Linear Regulators
The CS51313 is a synchronous dual NFET Buck Regulator
Controller. It is designed to power the core logic of the latest high
performance CPUs. It uses the V2™ control method to achieve the
fastest possible transient response and best overall regulation. It
incorporates many additional features required to ensure the proper
operation and protection of the CPU and Power system. The CS51313
provides the industry’s most highly integrated solution, minimizing
external component count, total solution size, and cost.
The CS51313 is specifically designed to power Intel’s Pentium® II
processor and includes the following features: 5−bit DAC with 1.2%
tolerance, Power Good output, overcurrent hiccup mode protection,
overvoltage protection, VCC monitor, Soft Start, adaptive voltage
positioning and adaptive FET non−overlap time. A precision reference
trimmed to 1.0% is also externally available for use by other
regulators. The CS51313 will operate over an 8.4 V to 14 V range and
is available in 16 lead narrow body surface mount package.
Features
Synchronous Switching Regulator Controller for CPU VCORE
Dual N−Channel MOSFET Synchronous Buck Design
V2 Control Topology
200 ns Transient Loop Response
5−Bit DAC with 1.2% Tolerance
Hiccup Mode Overcurrent Protection
40 ns Gate Rise and Fall Times (3.3 nF Load)
65 ns Adaptive FET Non−Overlap Time
Adaptive Voltage Positioning
Power Good Output Monitors Regulator Output
VCC Monitor Provides Undervoltage Lockout
OVP Output Monitors Regulator Output
Enable Through Use of the COMP Pin
+1.23 V Reference Voltage Available Externally
http://onsemi.com
Device
Package
Shipping
ORDERING INFORMATION
CS51313GD16
SO−16
48 Units/Rail
CS51313GDR16
SO−16
2500 Tape & Reel
PIN CONNECTIONS
MARKING DIAGRAM
SO−16
D SUFFIX
CASE 751B
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week
1
CS51313
AWLYWW
16
1
16
VCC
VOUT
1
16
GATE(H)
VFB
GND
VID4
GATE(L)
VREF
OVP
VID3
PWRGD
VID2
COFF
VID1
COMP
VID0


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