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HIP6302 Datasheet

Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

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DATASHEET
HIP6302
Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
FN4766
Rev.3.00
December 27, 2004
The HIP6302 multi-phase PWM control IC together with its
companion gate drivers, the HIP6601, HIP6602 or HIP6603
and Intersil 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 two phase convertor operating at 350kHz will
have a ripple frequency of 700kHz. Moreover, greater
convertor bandwidth of this design results in faster response
to load transients.
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.
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. Over-voltage, 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. Over-current 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.
Features
• Multi-Phase Power Conversion
• Precision Channel Current Sharing
- Loss Less Current Sampling - Uses rDS(ON)
• 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
• High Ripple Frequency, (Channel Frequency) Times
Number Channels . . . . . . . . . . . . . . . . . .100kHz to 3MHz
Pb-Free Available (RoHS Compliant)
Ordering Information
PART NUMBER TEMP. (oC) PACKAGE PKG. DWG. #
HIP6302CB
0 to 70 16 Ld SOIC M16.15
HIP6302CBZ
(See Note)
0 to 70
16 Ld SOIC
(Pb-Free)
M16.15
HIP6302CBZA
(See Note)
0 to 70
16 Ld SOIC
(Pb-Free)
M16.15
HIP6302EVAL1 Evaluation Platform
*Add “-T” suffix to part number for tape and reel packaging.
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
HIP6302 (SOIC)
TOP VIEW
VID4 1
VID3 2
VID2 3
VID1 4
VID0 5
COMP 6
FB 7
FS/DIS 8
16 VCC
15 PGOOD
14 ISEN1
13 PWM1
12 PWM2
11 ISEN2
10 VSEN
9 GND
FN4766 Rev.3.00
December 27, 2004
Page 1 of 16


Renesas Electronics Components Datasheet

HIP6302 Datasheet

Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

No Preview Available !

HIP6302
Block Diagram
PGOOD
VCC
VSEN
COMP
VID0
VID1
VID2
VID3
VID4
FB
X 0.9
X1.15
+
UV
-
+
OVP
-
OV
LATCH
S
POWER-ON
RESET (POR)
CLOCK AND
SAWTOOTH
GENERATOR
THREE
STATE
SOFT-
START
AND FAULT
LOGIC
+
-
+
PWM
-
D/A
+
E/A
-
+
-
+
PWM
-
CURRENT
CORRECTION
I_TOT
+
OC
-
+
+
I_TRIP
GND
FS/EN
PWM1
PWM2
ISEN1
ISEN2
FN4766 Rev.3.00
December 27, 2004
Page 2 of 16


Part Number HIP6302
Description Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
Maker Renesas
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HIP6302 Datasheet PDF






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