FN4587 Rev 1.00

Page 1 of 15

April 13, 2005

FN4587

Rev 1.00

April 13, 2005

HIP6019B

Advanced Dual PWM and Dual Linear Power Control

DATASHEET

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

Pinout

HIP6019B

(SOIC)

TOP VIEW

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

• 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,

• Small Converter Size

- 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

UGATE2

PHASE2

VID4

VID3

FB2

COMP2

SS

FAULT/RT

FB4

VCC

PGND

LGATE1

PHASE1

GATE3

COMP1

GND

VOUT4

VSEN2

UGATE1

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

OCSET2

VSEN1

FB3

VID1

VID0

OCSET1

FB1

Ordering Information

PART NUMBER

PACKAGE

PKG. DWG. #

HIP6019BCB

0 to 70

28 Ld SOIC

M28.3

HIP6019BCBZ

(See Note)

0 to 70

28 Ld SOIC

(Pb-free)

M28.3

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.

NOT RECOMMENDED FOR NEW DESIGNS

NO RECOMMENDED REPLACEMENT

contact our Technical Support Center at

1-888-INTERSIL or www.intersil.com/tsc