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HIP6021EVAL1 Datasheet(PDF) 1 Page - Intersil Corporation

Part # HIP6021EVAL1
Description  Advanced PWM and Triple Linear Power Controller
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

HIP6021EVAL1 Datasheet(HTML) 1 Page - Intersil Corporation

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1
®
HIP6021
Advanced PWM and Triple Linear Power
Controller
The HIP6021 provides the power control and protection for
four output voltages in high-performance, graphics intensive
microprocessor and computer applications. The IC integrates
a voltage-mode PWM controller and three linear controllers,
as well as the monitoring and protection functions into a 28-
pin SOIC package. The PWM controller regulates the
microprocessor core voltage with a synchronous-rectified
buck converter. The linear controllers regulate the computer
system’s AGP 1.5V or 3.3V bus power, the 1.5V GTL bus
power, and the 1.8V power for the North/South Bridge core
voltage and/or cache memory circuits. The HIP6021 includes
an Intel-compatible, TTL 5-input digital-to-analog converter
(DAC) that adjusts the core PWM output voltage from 1.3VDC
to 2.05VDC in 0.05V steps and from 2.1VDC to 3.5VDC in
0.1V increments. The precision reference and voltage-mode
control provide
±1% static regulation. The AGP bus power
linear controller’s output (VOUT2) is user-selectable, through a
TTL-compatible signal applied at the SELECT pin, for levels of
1.5V or 3.3V with
±3% accuracy. Based on the status of the
FIX pin, the other two linear regulators provide either fixed
output voltages of 1.5V
±3% (V
OUT3) and 1.8V±3% (VOUT4),
or user-adjustable by means of an external resistor divider. All
linear controllers can employ either N-channel MOSFETs or
bipolar NPNs for the pass transistor.
The HIP6021 monitors all the output voltages. A single Power
Good signal is issued when the core is within
±10% of the
DAC setting and all other outputs 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 function monitors the output current
by using the voltage drop across the upper MOSFET’s
rDS(ON).
Applications
• Motherboard Power Regulation for Computers
Features
• Provides 4 Regulated Voltages
- Microprocessor Core, AGP Bus, Memory, and GTL Bus
Power
• Drives N-Channel MOSFETs
• Linear Regulator Drives Compatible with both MOSFET
and Bipolar Series Pass Transistors
• Fixed or Externally Resistor-Adjustable Linear Outputs
(FIX Pin)
• Simple Single-Loop Control Design
- Voltage-Mode PWM Control
• Fast PWM Converter Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
• Excellent Output Voltage Regulation
- Core PWM Output:
±1% Over Temperature
- Other Outputs:
±3% Over Temperature
• TTL-Compatible 5-Bit DAC Microprocessor Core Output
Voltage Selection
- Wide Range . . . . . . . . . . . . . . . . . . . 1.3VDC to 3.5VDC
• Power-Good Output Voltage Monitor
• Over-Voltage and Over-Current Fault Monitors
- Switching Regulator Does Not Require Extra Current
Sensing Element, Uses MOSFET’s rDS(ON)
• Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator; Programmable From
50kHz to Over 1MHz
- Small External Component Count
• Pb-Free Available (RoHS Compliant)
Pinout
HIP6021 (SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
DWG. #
HIP6021CB
0 to 70
28 Ld SOIC
M28.3
HIP6021CBZ (Note)
0 to 70
28 Ld SOIC (Pb-free) M28.3
HIP6021EVAL1
Evaluation Board
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.
DRIVE2
FIX
VID4
VID3
VSEN2
SELECT
SS
FAULT/RT
VSEN4
VCC
PGND
LGATE
PHASE
DRIVE3
COMP
GND
VAUX
DRIVE4
UGATE
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PGOOD
VID2
SD
VSEN1
VSEN3
VID1
VID0
OCSET
FB
Data Sheet
March 8, 2005
FN4684.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 1999, 2005. All Rights Reserved


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