®
RT9624D
Single Phase Synchronous Rectified Buck MOSFET Driver
General Description
Features
z Drive Two N-MOSFETs
The RT9624Dis a high frequency, synchronous rectified,
single phase MOSFETdriver designed for normal MOSFET
driving applications and high performance CPU VR driving
capabilities.
z Shoot-Through Protection
z Embedded Bootstrap Switch
z Support High Switching Frequency
z Fast Output Rising Time
The RT9624D can be supplied from 4.5V to 13.2V. The
applicable power stage VIN range is from 5V to 24V. The
IC also builds in an internal power switch to replace
external bootstrap diode.
z Tri-State PWM Input for Output Shutdown
z Small 8-Lead WDFN Package
z RoHS Compliant and Halogen Free
The RT9624Dcan support switching frequency efficiently
up to 500kHz. The IC has both the UGATE and LGATE
driving circuits for synchronous rectifiedDC/DC converter
applications. The shoot through protection mechanism is
designed to prevent shoot through between high side and
low side power MOSFETs. The RT9624Dhas tri-state PWM
input with shutdown function, which can force driver to
output low UGATE and LGATE signals.
Applications
z Core Voltage Supplies forDesktop, Motherboard CPU
z High Frequency Low ProfileDC/DC Converters
z High Current Low VoltageDC/DC Converters
z Core Voltage Supplies forGFX Card
Marking Information
1B : Product Code
The RT9624D comes in a small footprint with
WDFN-8S 2x2 package.
W : Date Code
1BW
Simplified Application Circuit
RT9624D
V
V
IN
R1
R2
VCC
12V
BOOT
C6
C3
C5
C
C1
BOOT
Q1
Q2
UGATE
PHASE
R3
L1
R5
C2
OUT
PWM
Controller
PWM
GND
R4
C4
LGATE
Copyright 2012 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9624D-00 September 2012
www.richtek.com
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