CS5161 Datasheet, PDF (1/18 Pages) ON Semiconductor – CPU 5−Bit Synchronous Buck Controller

CS5161, CS5161H
CPU 5−Bit Synchronous
Buck Controller
The CS5161/5161H are 5−bit synchronous dual N−Channel buck
controllers designed to provide unprecedented transient response for
today’s demanding high−density, high−speed logic. They operate
using a proprietary control method which allows a 100 ns response
time to load transients. The CS5161 is designed to operate over a
9−16 V range (V_CC) using 12 V to power the IC and 5.0 V as the main
supply for conversion.
The CS5161H operates from a 12 V input as the main supply for
conversion using a discrete charge pump circuit to provide up to 20 V
for V_CC2 and high side gate drive.
The CS5161/5161H are specifically designed to power
Pentium® III processors and other high performance core logic. They
include the following features: on board 5−bit DAC, short circuit
protection, 1.0% output tolerance, V_CC monitor, and programmable
Soft Start capability. The CS5161/5161H are available in 16 pin
surface mount packages.
Features
• Dual N−Channel Design
• Excess of 1.0 MHz Operation
• 100 ns Transient Response
• 5−Bit DAC
• Backward Compatible with CS515X Family
• 30 ns Gate Rise/Fall Times
• 1.0% DAC Accuracy
• 5.0 V & 12 V Operation
• Remote Sense
• Programmable Soft Start
• Lossless Short Circuit Protection
• V_CC Monitor
• 50 ns FET Nonoverlap Time
• V²â„¢ Control Topology
• Current Sharing
• Overvoltage Protection
http://onsemi.com
SO−16
D SUFFIX
CASE 751B
MARKING
DIAGRAMS
16
CS5161
AWLYWW
1
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN CONNECTIONS
V_ID0 1
V_ID1
V_ID2
V_ID3
SS
V_ID4
C_OFF
V_FFB
V_FB
COMP
LGnd
V_CC1
V_GATE(L)
PGnd
V_GATE(H)
V_CC2
ORDERING INFORMATION
Device
CS5161GD16
CS5161GDR16
CS5161HGD16
CS5161HGDR16
Package
Shipping
SO−16
SO−16
SO−16
SO−16
48 Units/Rail
2500 Tape & Reel
48 Units/Rail
2500 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
1
July, 2006 − Rev. 12
Publication Order Number:
CS5161/D