RT9624D_15 Datasheet, PDF (1/13 Pages) Richtek Technology Corporation – Single Phase Synchronous Rectified Buck MOSFET Driver

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RT9624D
Single Phase Synchronous Rectified Buck MOSFET Driver
General Description
The RT9624D is a high frequency, synchronous rectified,
single phase MOSFET driver designed for normal MOSFET
driving applications and high performance CPU VR driving
capabilities.
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.
The RT9624D can support switching frequency efficiently
up to 500kHz. The IC has both the 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 RT9624D has tri-state PWM
input with shutdown function, which can force driver to
output low UGATE and LGATE signals.
The RT9624D comes in a small footprint with
WDFN-8SL 2x2 package.
Features
 Drive Two N-MOSFETs
 Shoot-Through Protection
 Embedded Bootstrap Switch
 Support High Switching Frequency
 Fast Output Rising Time
 Tri-State PWM Input for Output Shutdown
 Small 8-Lead WDFN Package
 RoHS Compliant and Halogen Free
Applications
 Core Voltage Supplies for Desktop, Motherboard CPU
 High Frequency Low Profile DC/DC Converters
 High Current Low Voltage DC/DC Converters
 Core Voltage Supplies for GFX Card
Marking Information
1B : Product Code
1BW
W : Date Code
Simplified Application Circuit
R1
12V
RT9624D
VCC
R2
BOOT
C1
UGATE
PWM
Controller
PWM
GND
PHASE
LGATE
C_BOOT
R3
R4
V_IN
C5
C6
Q1
L1
V_OUT
R5
Q2
C2
C3 C4
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9624D-04 July 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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