1

File Number

4819

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

UltraFET™ is a trademark of Intersil Corporation. 1-888-INTERSIL or 321-724-7143

Pentium® is a registered trademark of Intel Corporation. AMD® is a registered trademark of Advanced Micro Devices, Inc.

HIP6601, HIP6603

Synchronous-Rectified Buck MOSFET

Drivers

The HIP6601 and HIP6603 are high frequency, dual

MOSFET drivers specifically designed to drive two power

N-Channel MOSFETs in a synchronous-rectified buck

converter topology. These drivers combined with a HIP630x

Multi-Phase Buck PWM controller and Intersil UltraFETs™

form a complete core-voltage regulator solution for

advanced microprocessors.

The HIP6601 drives the lower gate in a synchronous-rectifier

bridge to 12V, while the upper gate can be independently

driven over a range from 5V to 12V. The HIP6603 drives

both upper and lower gates over a range of 5V to 12V. This

drive-voltage flexibility provides the advantage of optimizing

applications involving trade-offs between switching losses

and conduction losses.

The output drivers in the HIP6601 and HIP6603 have the

capacity to efficiently switch power MOSFETs at frequencies

up to 2MHz. Each driver is capable of driving a 3000pF load

with a 30ns propagation delay and 50ns transition time. Both

products implement bootstrapping on the upper gate with

only an external capacitor required. This reduces

implementation complexity and allows the use of higher

performance, cost effective, N-Channel MOSFETs. Adaptive

shoot-through protection is integrated to prevent both

MOSFETs from conducting simultaneously.

Features

• Drives Two N-Channel MOSFETs

• Adaptive Shoot-Through Protection

• Internal Bootstrap Device

• Supports High Switching Frequency

- Fast Output Rise Time

- Propagation Delay 30ns

• Small 8 Lead SOIC Package

• Dual Gate-Drive Voltages for Optimal Efficiency

• Three-State Input for Bridge Shutdown

• Supply Under Voltage Protection

Applications

• Core Voltage Supplies for Intel Pentium® III, AMD®

Athlon™ Microprocessors

• High Frequency Low Profile DC-DC Converters

• High Current Low Voltage DC-DC Converters

Pinout

HIP6601CB/HIP6603CB

(SOIC)

TOP VIEW

Block Diagram

Ordering Information

PART NUMBER

TEMP. RANGE

PACKAGE

PKG. NO.

HIP6601CB

0 to 85

8 Ld SOIC

M8.15

HIP6603CB

0 to 85

8 Ld SOIC

M8.15

UGATE

BOOT

PWM

GND

1

2

3

4

8

7

6

5

PHASE

PVCC

VCC

LGATE

PVCC

VCC

PWM

+5V

10K

10K

CONTROL

LOGIC

SHOOT-

THROUGH

PROTECTION

BOOT

UGATE

PHASE

LGATE

GND

†

PVCC FOR HIP6603

Data Sheet

January 2000