rt9214 Richtek Technology Corporation, rt9214 Datasheet - Page 7

• Manufacturer Part Number: rt9214
• Description: 5v/12v Synchronous Buck Dc-dc Controller
• Manufacturer: Richtek Technology Corporation

DS9214-02
(5V/Div)
UGATE
UGATE
V
V
V
OUT
V
OUT
CC
I
V
OUT
IN
CC
December 2004
I
V
V
I
OUT
V
I
OUT
UGATE
PHASE
OUT
CC
IN
CC
= 5V
= 25A
= 2A
= 10A, V
= 12V
= 5V to 12V
Dead Time (Falling)
LGATE
IN
V
= 5V
Time (10ms/Div)
Time (10ns/Div)
Time (5ms/Div)
CC
Power Off
Switching
(100mV/Div)
(10A/Div)
(10V/Div)
(10V/Div)
(20V/Div)
(10V/Div)
(2V/Div)
(2V/Div)
(100mV/Div)
(10V/Div)
(10A/Div)
UGATE
(5V/Div)
V
UGATE
I
OUT
L
V
I
OUT
OUT
Freq. = 1/20ms, SR = 2.5A/us
V
I
V
I
OUT
CC
OUT
CC
Transient Response (Rising)
= V
= 0A to 15A
= V
= 25A
IN
IN
= 12V
= 5V
Dead Time (Rising)
Time (500us/Div)
Time (25ns/Div)
Time (5us/Div)
Power On
(500mV/Div)
(2A/Div)
(10V/Div)
www.richtek.com
RT9214
L = 2.2uH
C = 2000uF
PHASE
UGATE
LGATE
7