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ADP3110A
Dual Bootstrapped, 12 V
MOSFET Driver with Output
Disable
The ADP3110A is a single Phase 12 V MOSFET gate drivers
1
L3E
ALYW G
optimized to drive the gates of both high ? side and low ? side power
MOSFETs in a synchronous buck converter. The high ? side and
low ? side driver is capable of driving a 3000 pF load with a 25 ns
propagation delay and a 30 ns transition time.
With a wide operating voltage range, high or low side MOSFET
gate drive voltage can be optimized for the best efficiency. Internal
adaptive nonoverlap circuitry further reduces switching losses by
preventing simultaneous conduction of both MOSFETs.
The floating top driver design can accommodate VBST voltages as
high as 35 V, with transient voltages as high as 40 V. Both gate outputs
can be driven low by applying a low logic level to the Output Disable
(OD) pin. An Undervoltage Lockout function ensures that both driver
outputs are low when the supply voltage is low, and a Thermal
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1
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http://onsemi.com
MARKING
DIAGRAMS
8
SO ? 8 3110A
D SUFFIX ALYW
CASE 751 G
1
DFN8
MN SUFFIX
CASE 506BJ
G
8
Shutdown function provides the IC with overtemperature protection.
A
L
= Assembly Location
= Wafer Lot
Features
? All ? In ? One Synchronous Buck Driver
? Bootstrapped High ? Side Drive
? One PWM Signal Generates Both Drives
? Anticross Conduction Protection Circuitry
? OD for Disabling the Driver Outputs Meets CPU VR Requirement
when Used with Patented FlexMode t Controller
? These are Pb ? Free Devices
Y = Year
W = Work Week
G = Pb ? Free Package
PIN CONNECTIONS
1 8
BST DRVH
IN SWN
OD PGND
V CC DRVL
Applications
? Multiphase Desktop CPU Supplies
? Single ? Supply Synchronous Buck Converters
BST
IN
1
8
DRVH
SWN
OD
V CC
PGND
DRVL
(Top View)
ORDERING INFORMATION
Device
ADP3110AKRZ
ADP3110AKRZ ? RL
ADP3110AKCPZ ? RL
Package
SO ? 8
(Pb ? Free)
SO ? 8
(Pb ? Free)
DFN8
Shipping ?
98 Units / Rail
2500 Tape & Reel
5000 Tape & Reel
(Pb ? Free)
?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.
? Semiconductor Components Industries, LLC, 2008
August, 2008 ? Rev. 4
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Publication Order Number:
ADP3110A/D
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