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ON Semiconductor - Synchronous Buck MOSFET Driver

Numéro de référence NCP81158
Description Synchronous Buck MOSFET Driver
Fabricant ON Semiconductor 
Logo ON Semiconductor 





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NCP81158 fiche technique
NCP81158
Synchronous Buck MOSFET
Driver
The NCP81158 is a high−performance dual MOSFET gate driver in
a small 3 mm x 3 mm package, optimized to drive the gates of both
high−side and low−side power MOSFETs in a synchronous buck
converter. The driver outputs can be placed into a high−impedance
state via the tri−state PWM and EN inputs. The NCP81158 comes
packaged with an integrated boost diode to minimize external
components. A VCC UVLO function guarantees the outputs are low
when the supply voltage is low.
Features
Space−efficient 3 mm x 3 mm DFN8 thermally−enhanced Package
VCC Range of 4.5 V to 5.5 V
Internal Bootstrap Diode
5 V 3−stage PWM Input
Diode Braking Capability via EN Mid−state
Adaptive Anti−cross Conduction Circuit Protects Against
Cross−conduction during FET Turn−on and Turn−off
Output Disable Control Turns Off Both MOSFETs via Enable Pin
VCC Undervoltage Lockout
These Devices are Pb−free, Halogen−free/BFR−free and are RoHS
Compliant
Typical Applications
Power Solutions for Notebook and Desktop Systems
www.onsemi.com
1
DFN8
CASE 506BJ
MARKING
DIAGRAM
18
81158
ALYWG
G
81158
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)
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
NCP81158MNTXG 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, 2016
August, 2016 − Rev. 0
1
Publication Order Number:
NCP81158/D

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