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RT9232 Просмотр технического описания (PDF) - Richtek Technology
Номер в каталоге
Компоненты Описание
производитель
RT9232
Programmable Frequency Synchronous Buck PWM Controller
Richtek Technology
RT9232 Datasheet PDF : 14 Pages
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RT9232
Typical Operating Characteristics
Efficient vs. Output Current
100
90
V
IN
= 3.3V
80
V
IN
= 5V
V
IN
= 12V
70
60
50
0
5
10
15
20
25
30
Output Current (A)
Loading = 0A
Dead Time
UGATE
PHASE
(5V/Div)
LGATE
VGS
R
RT
vs. Oscillator Frequency
1000
Pull high to V
CC
100
10
Pull down to GND
1
0 100 200 300 400 500 600 700 800
Frequency (kHz)
Loading = 0A
Dead Time
UGATE
PHASE
(5V/Div)
VGS
LGATE
Time (25ns/Div)
UVP
Time (25ns/Div)
Bootstrap Wave Form
V
CC
= EN (2V/Div)
SS (5V/Div)
FB (500mV/Div)
UGATE (10V/Div)
Time (20ms/Div)
V
OUT
LGATE
PHASE
UGATE
(500mV/Div)
(5V/Div)
(5V/Div)
(5V/Div)
Time (1us/Div)
www.richtek.com
6
DS9232-06 March 2007
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