NCP81151B Datasheet, PDF (1/9 Pages) ON Semiconductor – Compatible Synchronous Buck MOSFET Driver

NCP81151B
VR12.5 Compatible
Synchronous Buck MOSFET
Driver
The NCP81151B 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. It can drive up to 3 nF
load with a 25 ns propagation delay and 20 ns transition time.
Adaptive anti−cross−conduction and power saving operation circuit
can provide a low switching loss and high efficiency solution for
notebook systems.
The UVLO function guarantees the outputs are low when the supply
voltage is low.
Features
• Faster Rise and Fall Times
• Adaptive Anti−Cross−Conduction Circuit
• Zero Cross Detection function
• Output Disable Control Turns Off Both MOSFETs
• Undervoltage Lockout
• Power Saving Operation Under Light Load Conditions
• Direct Interface to NCP6131 and Other Compatible PWM
Controllers
• Thermally Enhanced Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• Power Management Solutions for Notebook Systems
www.onsemi.com
1
DFN8
CASE 506AA
MARKING
DIAGRAM
1
CPMG
G
CP = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
PINOUT DIAGRAM
BST 1
PWM 2
EN ₃
VCC 4
FLAG
9
8 DRVH
7 ^SW
6 GND
5 DRVL
ORDERING INFORMATION
Device
Package
Shipping^†
NCP81151BMNTBG DFN8
3000 / Tape &
(Pb−Free)
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.
© Semiconductor Components Industries, LLC, 2015
1
December, 2015 − Rev. 0
Publication Order Number:
NCP81151B/D