CS5157 Datasheet, PDF (1/16 Pages) Cherry Semiconductor Corporation – CPU 5-Bit Synchronous Buck Controller

CS5157
CPU 5−Bit Synchronous
Buck Controller
The CS5157 is a 5−bit synchronous dual 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 CS5157 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 CS5157 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 CS5157 is available in 16 pin surface mount.
Features
• Dual N−Channel Design
• Excess of 1.0 MHz Operation
• 100 ns Transient Response
• 5−Bit DAC
• 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
• 25 ns FET Nonoverlap Time
• V²â„¢ Control Topology
• Current Sharing
• Overvoltage Protection
http://onsemi.com
MARKING
DIAGRAM
16
1
SOIC−16
D SUFFIX
CASE 751B
16
CS5157
AWLYWW
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
16
V_FB
COMP
LGND
V_CC1
V_GATE(L)
PGND
V_GATE(H)
V_CC2
ORDERING INFORMATION
Device
Package
Shipping
CS5157GD16
CS5157GDR16
SO−16
48 Units/Rail
SO−16 2500 Tape & Reel
© Semiconductor Components Industries, LLC, 2006
1
July, 2006 − Rev. 7
Publication Order Number:
CS5157/D