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HIP6019B
Data Sheet
April 13, 2005
FN4587.1
Advanced Dual PWM and Dual Linear
Power Control
The HIP6019B provides the power control and protection for
four output voltages in high-performance microprocessor and
computer applications. The IC integrates two PWM
controllers, a linear regulator and a linear controller as well as
the monitoring and protection functions into a single 28 lead
SOIC package. One PWM controller regulates the
microprocessor core voltage with a synchronous-rectified
buck converter, while the second PWM controller supplies the
computer’s 3.3V power with a standard buck converter. The
linear controller regulates power for the GTL bus and the
linear regulator provides power for the clock driver circuits.
The HIP6019B includes an Intel-compatible, TTL 5-input
digital-to-analog converter (DAC) that adjusts the core PWM
output voltage from 2.1VDC to 3.5VDC in 0.1V increments
and from 1.3VDC to 2.05VDC in 0.05V steps. The precision
reference and voltage-mode control provide ±1% static
regulation. The second PWM controller is user-adjustable for
output levels between 3.0V and 3.5V with ± 2% accuracy. The
adjustable linear regulator uses an internal pass device to
provide 2.5V ± 2.5%. The adjustable linear controller drives an
external N-Channel MOSFET to provide 1.5V ± 2.5%.
The HIP6019B monitors all the output voltages. A single
Power Good signal is issued when the core is within ±10% of
the DAC setting and the other levels are above their under-
voltage levels. Additional built-in over-voltage protection for
the core output uses the lower MOSFET to prevent output
voltages above 115% of the DAC setting. The PWM
controller’s over-current functions monitor the output current
by sensing the voltage drop across the upper MOSFET’s
r DS(ON) , eliminating the need for a current sensing resistor.
Features
? Provides 4 Regulated Voltages
- Microprocessor Core, I/O, Clock Chip and GTL Bus
? Drives N-Channel MOSFETs
? Operates from +5V and +12V Inputs
? Simple Single-Loop Control Designs
- Voltage-Mode PWM Control
? Fast Transient Response
- High-Bandwidth Error Amplifiers
- Full 0% to 100% Duty Ratios
? Excellent Output Voltage Regulation
- Core PWM Output: ± 1% Over Temperature
- I/O PWM Output: ± 2% Over Temperature
- Other Outputs: ± 2.5% Over Temperature
? TTL-Compatible 5-Bit Digital-to-Analog Core Output
Voltage Selection
- Wide Range . . . . . . . . . . . . . . . . . . . 1.3V DC to 3.5V DC
- 0.1V Steps . . . . . . . . . . . . . . . . . . . . 2.1V DC to 3.5V DC
- 0.05V Steps . . . . . . . . . . . . . . . . . . 1.3V DC to 2.05V DC
? Power-Good Output Voltage Monitor
? Microprocessor Core Voltage Protection Against Shorted
MOSFET
? Over-Voltage and Over-Current Fault Monitors
- Does Not Require Extra Current Sensing Element,
Uses MOSFET’s r DS(ON)
? Small Converter Size
Pinout
UGATE2 1
PHASE2 2
VID4 3
VID3 4
VID2 5
VID1 6
HIP6019B
(SOIC)
TOP VIEW
28 VCC
27 UGATE1
26 PHASE1
25 LGATE1
24 PGND
23 OCSET1
- Constant Frequency Operation
- 200kHz Free-Running Oscillator; Programmable from
50kHz to 1MHz
? Pb-Free Available (RoHS Compliant)
Applications
? Full Motherboard Power Regulation for Computers
? Low-Voltage Distributed Power Supplies
Ordering Information
VID0 7
22 VSEN1
PART NUMBER
TEMP. ( o C)
PACKAGE
PKG. DWG. #
PGOOD 8
21 FB1
OCSET2 9
FB2 10
COMP2 11
20 COMP1
19 FB3
18 GATE3
HIP6019BCB
HIP6019BCBZ
(See Note)
0 to 70
0 to 70
28 Ld SOIC
28 Ld SOIC
(Pb-free)
M28.3
M28.3
SS 12
FAULT/RT 13
FB4 14
1
17 GND
16 VOUT4
15 VSEN2
Add “-T” suffix for tape and reel.
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.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 1998, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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