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Richtek - Single Phase Synchronous Rectified Buck MOSFET Driver

Numéro de référence RT9624E
Description Single Phase Synchronous Rectified Buck MOSFET Driver
Fabricant Richtek 
Logo Richtek 





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RT9624E fiche technique
®
RT9624E
Single Phase Synchronous Rectified Buck MOSFET Driver
General Description
The RT9624E is a high frequency, synchronous rectified,
single phase MOSFET driver designed for normal MOSFET
driving applications and high performance CPU VR driving
capabilities.
The RT9624E can be supplied from 4.5V to 13.2V. The
applicable power stage VIN range is from 5V to 24V. The
RT9624E also builds in an internal power switch to replace
external bootstrap diode.
The RT9624E can support switching frequency efficiently
up to 500kHz. The RT9624E has both UGATE and LGATE
driving circuits for synchronous rectified DC/DC converter
applications. The shoot through protection mechanism is
designed to prevent shoot through between high-side and
low-side power MOSFETs. The RT9624E has tri-state
PWM input with shutdown and EN input shutdown
functions, which can force driver to output low UGATE
and LGATE signals.
The RT9624E is available in a small footprint WDFN-8L
3x3 package.
Features
z Drive Two N-MOSFETs
z Shoot Through Protection
z Embedded Bootstrap Diode
z Support High Switching Frequency
z Fast Output Rising Time
z Tri-State PWM Input for Output Shutdown
z Enable Control
z 8-Lead WDFN Package
z RoHS Compliant and Halogen Free
Applications
z Core Voltage Supplies for Desktop, Motherboard CPU
z High Frequency Low Profile DC/DC Converters
z High Current Low Voltage DC/DC Converters
z Core Voltage Supplies for GFX Card
Marking Information
4Q= : Product Code
4Q=YM
DNN
YMDNN : Date Code
Simplified Application Circuit
R1
12V
C1
Chip Enable
PWM
Controller
RT9624E
VCC
BOOT
R2
UGATE
EN PHASE
PWM LGATE
GND
CBOOT
R3
R4
C5 C6
VIN
Q1
L1
VOUT
R5
Q2
C2
C3 C4
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS9624E-00 January 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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