HIP6301
®
Data Sheet
December 27, 2004
FN4765.6
Microprocessor CORE Voltage Regulator
Multi-Phase Buck PWM Controller
Features
The HIP6301 multi-phase PWM control IC together with its
companion gate drivers, the HIP6601B, HIP6602B,
HIP6603B or HIP6604B and external MOSFETs provides a
precision voltage regulation system for advanced
microprocessors. Multiphase power conversion is a marked
departure from earlier single phase converter configurations
previously employed to satisfy the ever increasing current
demands of modern microprocessors. Multi-phase
convertors, by distributing the power and load current results
in smaller and lower cost transistors with fewer input and
output capacitors. These reductions accrue from the higher
effective conversion frequency with higher frequency ripple
current due to the phase interleaving process of this
topology. For example, a three phase convertor operating at
350kHz will have a ripple frequency of 1.05MHz. Moreover,
greater convertor bandwidth of this design results in faster
response to load transients.
• Precision Channel Current Sharing
- Loss Less Current Sampling - Uses rDS(ON)
Outstanding features of this controller IC include
programmable VID codes from the microprocessor that
range from 1.100V to 1.850V with a system accuracy of
±1%. Pull up currents on these VID pins eliminates the need
for external pull up resistors. In addition “droop”
compensation, used to reduce the overshoot or undershoot
of the CORE voltage, is easily programmed with a single
resistor.
Ordering Information
Another feature of this controller IC is the PGOOD monitor
circuit which is held low until the CORE voltage increases,
during its Soft-Start sequence, to within 10% of the
programmed voltage. Overvoltage, 15% above programmed
CORE voltage, results in the converter shutting down and
turning the lower MOSFETs ON to clamp and protect the
microprocessor. Under voltage is also detected and results
in PGOOD low if the CORE voltage falls 10% below the
programmed level. Overcurrent protection reduces the
regulator current to less than 25% of the programmed trip
value. These features provide monitoring and protection for
the microprocessor and power system.
• Multi-Phase Power Conversion
• Precision CORE Voltage Regulation
- ±1% System Accuracy Over Temperature
• Microprocessor Voltage Identification Input
- 5-Bit VID Input
- 1.100V to 1.850V in 25mV Steps
- Programmable “Droop” Voltage
• Fast Transient Recovery Time
• Over Current Protection
• Automatic Selection of 2, 3, or 4 Phase Operation
• High Ripple Frequency, (Channel Frequency) Times
Number Channels . . . . . . . . . . . . . . . . . .100kHz to 6MHz
• Pb-Free Available (RoHS Compliant)
PART NUMBER
TEMP. (°C)
PACKAGE
HIP6301CB
0 to 70
20 Ld SOIC
M20.3
HIP6301CBZ
(Note)
0 to 70
20 Ld SOIC
(Pb-free)
M20.3
HIP6301CB-T
20 Ld SOIC Tape and Reel
HIP6301CBZ-T
(Note)
20 Ld SOIC Tape and Reel
(Pb-free)
HIP6301CBZA-T
(Note)
20 Ld SOIC Tape and Reel
(Pb-free)
HIP6301EVAL2
Evaluation Platform
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding
compounds/die attach materials and 100% matte tin plate termination finish, which are
RoHS compliant and compatible with both SnPb and Pb-free soldering operations.
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Pinout
HIP6301 (SOIC)
TOP VIEW
VID4 1
20 VCC
VID3 2
19 PGOOD
VID2 3
18 PWM4
VID1 4
17 ISEN4
VID0 5
16 ISEN1
COMP 6
15 PWM1
FB 7
14 PWM2
FS/DIS 8
13 ISEN2
GND 9
12 ISEN3
VSEN 10
1
PKG. DWG #
11 PWM3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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