2-3

File Number

4029.5

HIP5010, HIP5011

7V, 17A SynchroFET™ Complementary

Drive Synchronous Half-Bridge

Designed with the P6 and Pentium® in mind, the Intersil

SynchroFET™ family provides a new approach for

implementing a synchronous rectified buck switching regulator.

The SynchroFET replaces two power DMOSs, a Schottky

diode, two gate drivers and synchronous control circuitry. The

complementary drive circuit turns the upper FET on and the

lower FET off when the input from the PWM is high. When the

input from the PWM goes low the upper FET turns off and the

lower FET turns on. The HIP5011 has a PWM pin that inverts

the relationship from the input to PHASE. This architecture

allows the designer to utilize a low cost single-ended PWM

controller in either a current or voltage mode configuration. The

SynchroFET operates in continuous conduction mode reducing

EMI constraints and enabling high bandwidth operation.

Several features ensure easy start-up. First, the supply currents

stay below specification as the supply voltages ramp up; no

unexpected surges occur that might perturb a soft-start or

deplete a charge-pump. Second, any power-up sequence of

Features

• Complementary Drive, Half-Bridge Power NMOS

• Use With Low-Cost Single-Output PWM Controllers

• Improve Efficiency Over Conventional Buck Converter with

Schottky Clamp

• Minimum Deadtime Provided by Adaptive Shoot-Through

Protection Eliminates External Schottky

• Grounded Case for Low EMI and Simple Heatsinking

• Low Operating Current

• Frequency Exceeding 1MHz

• Dual Polarity Input Options

• All Pins Surge Protected

Applications

• 5V to

≤3.3V Synchronous Buck Converters

• Pentium and P6 Power Supplies

• Bus Terminations (BTL and GTL)

• Drive 5V Motors Directly from Microprocessor

Typical Application Block Diagram

Pentium® is a registered trademark of Intel Corporation.

PowerPC™ is a trademark of International Business Machines.

SynchroFET™ is a trademark of Intersil Corporation.

Pinouts

HIP5010IS1, HIP5011IS1 (SIP - VERTICAL)

TOP VIEW

HIP5010IS, HIP5011IS (SIP - GULLWING)

TOP VIEW

1 PHASE

4

5 PWM (HIP5010), PWM (HIP5011)

7 PHASE

GND (TAB)

FRONT ROWS = PINS 1, 3, 5, 7

BACK ROWS = PINS 2, 4, 6

1 PHASE

4

5 PWM (HIP5010), PWM (HIP5011)

7 PHASE

GND

(TAB)

Ordering Information

PART

NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP5010IS

-40 to 85

7 Ld Gullwing SIP

Z7.05B

HIP5010IS1

-40 to 85

7 Ld Staggered Vertical SIP Z7.05C

HIP5011IS

-40 to 85

7 Ld Gullwing SIP

Z7.05B

HIP5011IS1

-40 to 85

7 Ld Staggered Vertical SIP Z7.05C

+12V

+3.3V

PHASE

PWM

CONTROL

+5V

HIP5010

PWM

CONTROLLER

SYNCHRONOUS RECTIFIED BUCK CONVERTER

GND

Data Sheet

March 1996

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

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