HIP6020ACB Intersil Corporation, HIP6020ACB Datasheet
HIP6020ACB
Manufacturer Part Number
HIP6020ACB
Description
Advanced Dual PWM and Dual Linear Power Controller
Manufacturer
Intersil Corporation
Datasheet
1.HIP6020ACB.pdf
(16 pages)
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Advanced Dual PWM and Dual Linear
Power Controller
The HIP6020A provides the power control and protection for
four output voltages in high-performance, graphics intensive
microprocessor and computer applications. The IC
integrates two PWM controllers and two linear controllers, as
well as the monitoring and protection functions into a 28-pin
SOIC package. One PWM controller regulates the
microprocessor core voltage with a synchronous-rectified
buck converter. The second PWM controller supplies the
computer system’s AGP 1.5V or 3.3V bus power with a
standard buck converter. The linear controllers regulate
power for the 1.5V GTL bus and the 1.8V power for the
North/South Bridge core voltage and/or cache memory
circuits.
The HIP6020A includes an Intel-compatible, TTL 5-input
digital-to-analog converter (DAC) that adjusts the core PWM
output voltage from 1.3V
from 2.1V
reference and voltage-mode control provide 1% static
regulation. The second PWM controller’s output is user-
selectable, through a TTL-compatible signal applied at the
SELECT pin, for levels of 1.5V ( 3%) or fully ON switch. The
linear regulators use external N-Channel MOSFETs or
bipolar NPN pass transistors to provide output voltages of
1.5V 3% (V
The HIP6020A 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
controllers’ over-current function monitors the output current
by using the voltage drop across the upper MOSFET’s
r
Ordering Information
DS(ON)
HIP6020ACB
PART NUMBER
, eliminating the need for a current sensing resistor.
DC
OUT3
to 3.5V
) and 1.8V 3% (V
RANGE (
DC
TEMP.
0 to 70
in 0.1V increments. The precision
DC
TM
4-1
to 2.05V
o
C)
28 Ld SOIC
Data Sheet
OUT4
PACKAGE
DC
in 0.05V steps and
).
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
M28.3
PKG.
NO.
Features
• Provides 4 Regulated Voltages
• Drives N-Channel MOSFETs
• Linear Regulator Drives Compatible with both MOSFET
• Simple Single-Loop Control Designs
• Fast PWM Converter Transient Response
• Excellent Output Voltage Regulation
• TTL-Compatible 5 Bit DAC Microprocessor Core Output
• Power-Good Output Voltage Monitor
• Over-Voltage and Over-Current Fault Monitors
• Small Converter Size
Applications
• Motherboard Power Regulation for Computers
Pinout
1-888-INTERSIL or 321-724-7143
- Microprocessor Core, AGP Bus, North/South Bridge
and Bipolar Series Pass Transistors
- Voltage-Mode PWM Control
- High-Bandwidth Error Amplifiers
- Full 0% to 100% Duty Ratios
- Core PWM Output: 1% Over Temperature
- AGP Bus PWM Output: 3% Over Temperature
- Other Outputs: 3% Over Temperature
Voltage Selection
- Wide Range - 1.3V
- Switching Regulators Use MOSFET’s r
- Constant Frequency Operation
- 200kHz Free-Running Oscillator; Programmable From
- Small External Component Count
and/or Cache Memory, and GTL Bus Power
(1.5V Setting Only)
50kHz to Over 1MHz
FAULT/RT
UGATE2
PHASE2
OCSET2
SELECT
PGOOD
April 1999
VSEN2
VID4
VID3
VID2
VID1
VID0
FB4
SS
10
11
12
13
14
1
2
3
4
5
6
7
8
9
HIP6020A (SOIC)
DC
TOP VIEW
to 3.5V
|
Copyright
DC
File Number
©
28
27
26
25
24
23
22
21
20
19
18
17
16
15
HIP6020A
Intersil Corporation 1999
VCC
UGATE1
PHASE1
LGATE1
PGND
OCSET1
VSEN1
FB1
COMP1
FB3
DRIVE3
GND
VAUX
DRIVE4
DS(ON)
Sensing
4735