FN4324 Rev.2.00

Page 1 of 12

December 27, 2004

FN4324

Rev.2.00

December 27, 2004

HIP6012

Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller

DATASHEET

The HIP6012 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 HIP6012 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

1.5% over temperature and line voltage variations.

The HIP6012 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/

s slew rate which enables high converter bandwidth for

fast transient performance. The resulting PWM duty ratio

ranges from 0% to 100%.

The HIP6012 protects against overcurrent conditions by

inhibiting PWM operation. The HIP6012 monitors the current

the need for a current sensing resistor.

Pinout

HIP6012

(SOIC, TSSOP)

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

-

1.5% Over Line Voltage and Temperature

• Overcurrent 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 and TSSOP Packages

• Pb-Free Available (RoHS Compliant)

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

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.

HIP6012CB

0 to 70

14 Ld SOIC

M14.15

HIP6012CBZ

(See Note)

0 to 70

14 Ld SOIC (Pb-free)

M14.15

HIP6012CV

0 to 70

14 Ld TSSOP

M14.173

HIP6012CVZ

(See Note)

0 to 70

14 Ld TSSOP (Pb-free)

M14.173

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.