1

File Number

4270.2

HIP6002

Rectifier (PWM) Controller and Output

Voltage Monitor

The HIP6002 provides complete control and protection for a

DC-DC converter optimized for high-performance

microprocessor applications. It is designed to drive two

N-Channel MOSFETs in a synchronous-rectified buck

topology. The HIP6002 integrates all of the control, output

adjustment, monitoring and protection functions into a single

package.

The output voltage of the converter is easily adjusted and

precisely regulated. The HIP6002 includes a 4-Input

Digital-to-Analog Converter (DAC) that adjusts the output

voltage from 2.0VDC to 3.5VDC in 0.1V increments. The

precision reference and voltage-mode regulator hold the

selected output voltage to within

±1% over temperature and

line voltage variations.

The HIP6002 provides simple, single feedback loop, voltage-

mode control with fast transient response. It includes a

200kHz free-running triangle-wave oscillator that is

adjustable from below 50kHz to over 1MHz. The error

amplifier features a 15MHz gain-bandwidth product and

6V/

µs slew rate which enables high converter bandwidth for

fast transient performance. The resulting PWM duty ratio

ranges from 0% to 100%.

The HIP6002 monitors the output voltage with a window

comparator that tracks the DAC output and issues a Power

Good signal when the output is within

±10%. The HIP6002

protects against over-current conditions by inhibiting PWM

operation. Built-in over-voltage protection triggers an

external SCR to crowbar the input supply. The HIP6002

MOSFET which eliminates the need for a current sensing

resistor.

Pinout

HIP6002 (SOIC)

TOP VIEW

Features

• Drives Two N-Channel MOSFETs

• Operates From +5V or +12V Input

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

• Fast Transient Response

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Ratio

• Excellent Output Voltage Regulation

-

±1% Over Line Voltage and Temperature

• 4-Bit Digital-to-Analog Output Voltage Selection

- Wide Range . . . . . . . . . . . . . . . . . . .2.0VDC to 3.5VDC

- 0.1V Binary Steps

• Power-Good Output Voltage Monitor

• 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 Over 1MHz

Applications

• Power Supply for Pentium®, Pentium Pro, PowerPC™ and

Alpha™ Microprocessors

• High-Power 5V to 3.xV DC-DC Regulators

• Low-Voltage Distributed Power Supplies

Alpha Micro™ is a trademark of Digital Computer Equipment Corporation.

Pentium® is a registered trademark of Intel Corporation.

PowerPC™ is a registered trademark of IBM.

11

12

13

14

15

16

17

18

20

19

10

9

8

7

6

5

4

3

2

1

VSEN

OCSET

SS

VID0

VID1

VID2

EN

VID3

COMP

FB

RT

VCC

LGATE

PGND

OVP

BOOT

UGATE

PHASE

PGOOD

GND

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP6002CB

0 to 70

20 Ld SOIC

M20.3

Data Sheet

March 2000

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143