HIP6016 Datasheet, PDF (1/14 Pages) Intersil Corporation – Advanced PWM and Dual Linear Power Control

Data Sheet
HIP6016
January 1999 File Number 4566.1
Advanced PWM and Dual Linear Power
Control
The HIP6016 provides the power control and protection for
three output voltages in high-performance microprocessor
and computer applications. The IC integrates a PWM
controller, a linear regulator and a linear controller as well as
the monitoring and protection functions into a single
package. The PWM controller regulates the microprocessor
core voltage with a synchronous-reThanctified buck
converter. The linear controller regulates power for the GTL
bus and the linear regulator provides power for the clock
driver circuit.
The HIP6016 includes an Intel-compatible, TTL 5-input
digital-to-analog converter (DAC) that adjusts the core PWM
output voltage from 2.1V_DC to 3.5V_DC in 0.1V increments
and from 1.3V_DC to 2.05V_DC in 0.05V steps. The precision
reference and voltage-mode control provide ±1% static
regulation. The linear regulator uses an internal pass device
to provide a fixed 2.5V ±2.5%. The linear controller drives an
external N-channel MOSFET to provide a fixed 1.5V ±2.5%.
The HIP6016 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 over-
current function monitors the output current by using the
voltage drop across the upper MOSFET’s r_DS(ON),
eliminating the need for a current sensing resistor.
Pinout
HIP6016
(SOIC)
TOP VIEW
VCC 1
VID4 2
VID3 3
VID2 4
VID1 5
VID0 6
PGOOD 7
FAULT 8
SS 9
RT 10
VSEN2 11
VIN2 12
24 UGATE
23 PHASE
22 LGATE
21 PGND
20 OCSET
19 VSEN1
18 FB
17 COMP
16 VSEN3
15 GATE3
14 GND
13 VOUT2
Features
• Provides 3 Regulated Voltages
- Microprocessor Core, Clock and GTL Power
• Drives N-Channel MOSFETs
• Operates from +3.3V, +5V and +12V Inputs
• Simple Control Design
- Single-Loop Voltage-Mode PWM Control
- Fixed 1.5V GTL Output Voltage
- Fixed 2.5V Clock Output Voltage
• Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
• Excellent Output Voltage Regulation
- Core PWM Output: ±1% 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
- Constant Frequency Operation
- 200kHz Free-Running Oscillator; Programmable from
50kHz to over 1MHz
Applications
• _{Full Motherboard Power Regulation for Computers}
• _{Low-Voltage Distributed Power Supplies}
Ordering Information
TEMP. RANGE
PART NUMBER
(^oC)
PACKAGE PKG. NO.
HIP6016CB
0 to 70
24 Ld SOIC M24.3
2-196
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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