CS5323-D Datasheet, PDF (1/16 Pages) ON Semiconductor – Three-Phase Buck Controller with 5-Bit DAC

CS5323
Three-Phase Buck
Controller with 5-Bit DAC
The CS5323 is a three–phase step down controller that incorporates
all control functions required to power next generation processors.
Proprietary multi–phase architecture guarantees balanced load current
distribution and reduces overall solution cost in high current
applications. Enhanced V²â„¢ control architecture provides the fastest
possible transient response, excellent overall regulation, and ease of
use.
The multi–phase architecture reduces input and output filter ripple,
allowing for a reduction in filter size and inductor values with a
corresponding increase in the output inductor current slew rate.
Features
• Enhanced V² Control Method
• 5–Bit DAC with 1.0% Tolerance
• Adjustable Output Voltage Positioning
• Programmable Frequency Set by Single Resistor
• 200 kHz to 800 kHz Operation (Per Phase)
• Current Sensed through Sense Resistors, or Buck Inductors
• Adjustable Current Sense Threshold
• Hiccup Mode Current Limit
• Over–Voltage Protection through Synchronous MOSFET’s
• Individual Current Limits for Each Phase
• On–Board Current Sense Amplifiers
• 3.3 V, 1.0 mA Reference Output
• 5.0 V and/or 12 V Operation
• On/Off Control (through COMP Pin)
http://onsemi.com
20
1
SO–20L
DW SUFFIX
CASE 751D
PIN CONNECTIONS AND
MARKING DIAGRAM
R_OSC ¹
COMP
V_FB
V_DRP
CS1
CS2
CS3
CS_REF
I_LIM
REF
V_CC
GATE1
GATE2
GATE3
GND
V_ID4
V_ID3
V_ID2
V_ID1
V_ID0
A
WL, L
YY, Y
WW, W
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS5323GDW20
SO–20L 37 Units/Rail
CS5323GDWR20 SO–20L 1000 Tape & Reel
© Semiconductor Components Industries, LLC, 2002
1
August, 2002 – Rev. 6
Publication Order Number:
CS5323/D