NCP81152 Datasheet, PDF (1/8 Pages) ON Semiconductor – Synchronous Buck Dual MOSFET Driver

NCP81152
Synchronous Buck Dual
MOSFET Driver
The NCP81152 is a high−performance dual MOSFET gate driver
optimized to drive the gates of both high−side and low−side power
MOSFETs in a synchronous buck converter. Two drivers are
co−packaged into a 2.5 mm x 3.5 mm QFN16 package that greatly
reduces the footprint compared to two discrete drivers. Adaptive
anti−cross−conduction circuitry and power saving operation provides
a low−switching−loss and high−efficiency solution for notebook
systems. The under−voltage lockout function guarantees the outputs
are low when the supply voltage is low.
Features
• Adaptive Anti−Cross−Conduction Circuit
• Integrated Bootstrap Diode
• Zero Cross Detection
• Floating Top Driver Accommodates Boost Voltages up to 35 V
• Output Disable Control Turns Off Both MOSFETs
• Under−voltage Lockout
• Power Saving Operation Under Light Load Conditions
• Thermally Enhanced Package
• These are Pb−Free Devices
Typical Applications
• Vcore Power for Notebook Systems
• Power Systems for DDR and Graphics
www.onsemi.com
1
QFN16
MN SUFFIX
CASE 485AW
MARKING DIAGRAM
81152
ALYWG
G
81152
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
1
PWM1
EN1
VCC1
BST2
PWM2
EN2
16
SW1
GND1
DRVL1
DRVH2
SW2
GND2
© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 2
(Top View)
ORDERING INFORMATION
Device
NCP81152MNTWG
Package
QFN16
(Pb−Free)
Shipping^†
3000 / Tape &
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
1
Publication Order Number:
NCP81152/D