RT9624E Datasheet, PDF (2/13 Pages) Richtek Technology Corporation – Single Phase Synchronous Rectified Buck MOSFET Driver

RT9624E
Ordering Information
RT9624E
Package Type
QW : WDFN-8L 3x3 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
 RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
PWM 1
GND 2
EN 3
VCC ⁴
8 _BOOT
7 UGATE
6 PHASE
9 5 LGATE
WDFN-8L 3x3
Function Pin Description
Pin No.
Pin Name
Pin Function
1
PWM
PWM Signal Input. Connect this pin to the PWM output of the controller.
2, 9 (Exposed Pad) GND
Ground. The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
3
EN
Enable Control Input (Active High). When this pin is low, both UGATE and
LGATE are driven to low.
4
VCC
Supply Voltage Input.
5
LGATE
Low-Side Gate Driver Output. Connect this pin to the Gate of low-side power
N-MOSFET.
6
PHASE
Connect this pin to the Source of the high-side N-MOSFET and the Drain of the
low side N-MOSFET.
7
UGATE
High-Side Gate Drive Output. Connect this pin to the Gate of high-side power
N-MOSFET.
8
BOOT
Bootstrap Supply for High-Side Gate Drive.
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9624E-01 July 2015