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HIP6006

Buck and Synchronous-Rectifier

Pulse-Width Modulator (PWM) Controller

The HIP6006 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 HIP6006 integrates all of the control, output

adjustment, monitoring and protection functions into a single

package.

The output voltage of the converter can be precisely

regulated to as low as 1.27V, with a maximum tolerance of

±1% over temperature and line voltage variations.

The HIP6006 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 HIP6006 protects against over-current conditions by

inhibiting PWM operation. The HIP6006 monitors the current

the need for a current sensing resistor.

Pinout

HIP6006

(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

- 1.27V Internal Reference

-

±1% Over Line Voltage and Temperature

• Over-Current Fault Monitor

- Does Not Require Extra Current Sensing Element

• Small Converter Size

- Constant Frequency Operation

- 200kHz Free-Running Oscillator Programmable from

50kHz to Over 1MHz

• 14 Pin, SOIC Package

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

PowerPC™ is a trademark of IBM.

Alpha™ is a trademark of Digital Equipment Corporation.

Pentium® is a registered trademark of Intel Corporation.

8

9

10

11

12

13

14

7

6

5

4

3

2

1

OCSET

SS

EN

COMP

FB

RT

VCC

LGATE

PGND

BOOT

UGATE

PHASE

GND

PVCC

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP6006CB

0 to 70

14 Ld SOIC

M14.15

Data Sheet

September 1997

File Number

4306.1

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

http://www.intersil.com or 407-727-9207