© Semiconductor Components Industries, LLC, 2009

April, 2009 − Rev. 0

1

Publication Order Number:

ADP3121/D

ADP3121

Dual Bootstrapped, 12 V

MOSFET Driver with Output

Disable

The ADP3121 is a dual, high voltage MOSFET driver optimized for

driving two N−channel MOSFETs, the two switches in a non−isolated

synchronous buck power converter. Each driver is capable of driving a

3000 pF load with a 20 ns propagation delay and a 15 ns transition

time.

One of the drivers can be bootstrapped and is designed to handle the

high voltage slew rate associated with floating high−side gate drivers.

The ADP3121 includes overlapping drive protection to prevent

shoot−through current in the external MOSFETs.

The OD pin shuts off both the high−side and the low−side

MOSFETs to prevent rapid output capacitor discharge during system

shutdown.

The ADP3121 is specified over the commercial temperature range

of 0

°C to 85°C and is available in 8−lead SOIC_N and 8−lead LFCSP

packages.

Features

Controller

Typical Applications

Device

Package

ORDERING INFORMATION

SOIC_N

(Pb−Free)

2500/Tape & Reel

ADP3121JRZ−RL

LFCSP_VD

(Pb−Free)

5000/Tape & Reel

ADP3121JCPZ−RL

http://onsemi.com

1

8

P3121

ALYW

G

1

8

P3121 = Specific Device Code

AL

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb−Free Package

LFCSP8

MN SUFFIX

CASE 932AF

SO−8

D SUFFIX

CASE 751

1

L7Q

#YWW

G

L7Q

= Specific Device Code

Y

= Year

WW

= Work Week

G

= Pb−Free Package

8

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.