CS5166H
5-Bit Synchronous CPU
Controller with Power Good
and Current Limit
The CS5166H is a synchronous dual NFET buck controller. It is
designed to power the core logic of the latest high performance CPUs. It
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MARKING
2
uses V
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 CS5166H provides the industry’s most
highly integrated solution, minimizing external component count, total
solution size, and cost.
The CS5166H is specifically designed to power Intel’s Pentium II
processor and includes the following features: 5–bit DAC with 1.0%
tolerance, Power Good output, adjustable hiccup mode overcurrent
DIAGRAM
16
16
1
CS5166H
SO–16L
DW SUFFIX
CASE 751G
AWLYYWW
protection, V
monitor, Soft Start, adaptive voltage positioning,
1
CC
overvoltage protection, remote sense and current sharing capability.
The CS5166H will operate over a 4.15 to 20 V range using either
single or dual input voltage and is available in a 16 lead wide body
surface mount package.
A
WL, L
YY, Y
= Assembly Location
= Wafer Lot
= Year
WW, W = Work Week
Features
2
• V Control Topology
• Dual N–Channel Design
PIN CONNECTIONS
• 125 ns Controller Transient Response
• Excess of 1.0 MHz Operation
• 5–Bit DAC with 1.0% Tolerance
• Power Good Output With Internal Delay
• Adjustable Hiccup Mode Overcurrent Protection
• Complete Pentium II System Requires Just 21 Components
• 5.0 V & 12 V Operation Using Either Dual or Single Supplies
• Adaptive Voltage Positioning
1
16
V
V
V
V
V
FB
ID0
ID1
ID2
ID3
COMP
LGND
PWRGD
GATE(L)
PGND
SS
V
ID4
C
GATE(H)
V
OFF
I
SENSE
CC
• Remote Sense Capability
• Current Sharing Capability
ORDERING INFORMATION
• V Monitor
• Overvoltage Protection (OVP)
• Programmable Soft Start
CC
Device
Package
Shipping
46 Units/Rail
CS5166HGDW16
SO–16L
1000 Tape & Reel
• 200 ns PWM Blanking
CS5166HGDWR16 SO–16L
• 65 ns FET Nonoverlap Time
• 40 ns Gate Rise and Fall Times (3.3 nF Load)
Semiconductor Components Industries, LLC, 2001
1
Publication Order Number:
January, 2001 – Rev. 2
CS5166H/D