CS5156 Datasheet, PDF (1/17 Pages) Cherry Semiconductor Corporation – CPU 5-Bit Nonsynchronous Buck Controller

CS5156
CPU 5−Bit Nonsynchronous
Buck Controller
The CS5156 is a 5−bit nonsynchronous N−Channel buck controller.
It is designed to provide unprecedented transient response for today’s
demanding high−density, high−speed logic. The regulator operates
using a proprietary control method, which allows a 100 ns response
time to load transients. The CS5156 is designed to operate over a
4.25−16 V range (V_CC) using 12 V to power the IC and 5.0 V as the
main supply for conversion.
The CS5156 is specifically designed to power Pentium® II
processors and other high performance core logic. It includes the
following features: on board, 5−bit DAC, short circuit protection,
1.0% output tolerance, V_CC monitor, and programmable Soft Start
capability. The CS5156 is backwards compatible with the 4−bit
CS5151, allowing the mother board designer the capability of using
either the CS5151 or the CS5156 with no change in layout. The
CS5156 is available in 16 pin surface mount and DIP packages.
Features
• N−Channel Design
• Excess of 1.0 MHz Operation
• 100 ns Transient Response
• 5−Bit DAC
• Backward Compatible with 4−Bit CS5150/CS5151
• 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
• Adaptive Voltage Positioning
• V²â„¢ Control Topology
• Current Sharing
• Overvoltage Protection
http://onsemi.com
MARKING
DIAGRAMS
16
1
SOIC−16
D SUFFIX
CASE 751B
16
CS5156
AWLYWW
1
16
1
DIP−16
N SUFFIX
CASE 648
16
CS5156
AWLYYWW
1
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN CONNECTIONS
1
V_ID0
V_ID1
V_ID2
V_ID3
SS
V_ID4
C_OFF
V_FFB
V_FB
COMP
LGND
V_CC1
NC
PGND
V_GATE
V_CC2
ORDERING INFORMATION
Device
CS5156GD16
CS5156GDR16
CS5156GN16
Package
Shipping
SO−16
SO−16
DIP−16
48 Units/Rail
2500 Tape & Reel
25 Units/Rail
© Semiconductor Components Industries, LLC, 2006
1
July, 2006 − Rev. 11
Publication Order Number:
CS5156/D