RT9624G Datasheet, PDF (6/13 Pages) Richtek Technology Corporation – Single Phase Synchronous Rectified Buck MOSFET Driver

RT9624G
Typical Application Circuit
R1
RT9624G
R2
2.2
12V
4 _VCC
BOOT ^{1 1}
C_BOOT
1µF
C1
1µF
R3
8
2.2
UGATE
Enable ³ EN
PHASE ⁷
R4
PWM
Controller
2 _PWM
LGATE ⁵
GND
0
6, 9 (Exposed Pad)
C5
1000µF
x3
Q1
L1
1µH
R5
2.2
Q2
C2
3.3nF
V_IN
C6
12V
10µF
x4
C3
2200µF
x2
V_OUT
C4
10µF
x2
Timing Diagram
PWM
LGATE
t_LGATEpdl
90%
1.5V
UGATE
1.5V
t_UGATEpdh
t_UGATEpdl
1.5V
90%
1.5V
t_LGATEpdh
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DS9624G-02 July 2015