2-8

File Number

4142

HIP5015, HIP5016

7V, 7A SynchroFET™ Complementary

Drive Synchronous Half-Bridge

Designed with the 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 HIP5016 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

• 3.3V to

≤2.9V Synchronous Buck Converters

• Pentium Power Supplies

• Bus Terminations (BTL and GTL)

• Drive 5V Motors Directly from Microprocessor

Typical Application Block Diagram

Pinouts

HIP5015IS1, HIP5016IS1 (SIP - VERTICAL)

TOP VIEW

Pentium® is a registered trademark of Intel Corporation.

SynchroFET™ is a trademark of Intersil Corporation.

HIP5015IS, HIP5016IS (SIP - GULLWING)

TOP VIEW

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP5015IS

-40 to 85

7 Ld Gullwing SIP

Z7.05B

HIP5015IS1

-40 to 85

7 Ld Staggered

Vertical SIP

Z7.05C

HIP5016IS

-40 to 85

7 Ld Gullwing SIP

Z7.05B

HIP5016IS1

-40 to 85

7 Ld Staggered

Vertical SIP

Z7.05C

+12V

+3.3V

PHASE

PWM

CONTROL

+5V

HIP5015

PWM

CONTROLLER

SYNCHRONOUS RECTIFIED BUCK CONVERTER

GND

1 PHASE

4 GND

5 PWM (HIP5015), PWM (HIP5016)

6NC

7NC

GND (TAB)

FRONT ROWS = PINS 1,3,5,7

BACK ROWS = PINS 2,4,6

1 PHASE

4

5 PWM (HIP5015), PWM (HIP5016)

6NC

7NC

GND

(TAB)

Data Sheet

June 1996

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

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