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RT8100 데이터 시트보기 (PDF) - Richtek Technology
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RT8100
Synchronous buck PWM DC/DC with Dual Voltage Control Mode
Richtek Technology
RT8100 Datasheet PDF : 18 Pages
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Preliminary
Typical Operating Characteristics
Efficiency vs. Output Current
95
90.5
V
IN
= 5V
86
V
IN
= 12V
81.5
77
72.5
68
63.5
59
54.5
50
0
5
10
15
20
25
Output Current (A)
1000
900
800
700
600
500
400
300
200
100
0
1
Dead Time (Rising)
RT8100
Frequency vs. R
RT
R
RT
connected to GND
R
RT
connected to 5VSB
10
100
1000
R
RT
(k
π
Ω
)
)
Dead Time (Falling)
10000
UGATE
UGATE
(5V/Div)
PHASE
UGATE
−
PHASE
LGATE
PHASE
UGATE
−
PHASE
(5V/Div)
LGATE
Time (25ns/Div)
Load Transient Regulation (Rising)
Time (25ns/Div)
Load Transient Regulation (Falling)
UGATE
(10V/Div)
LGATE
(10V/Div)
V
OUT
(200mV/Div)
I
Load
(10A/Div)
Time (10us/Div)
UGATE
(10V/Div)
LGATE
(10V/Div)
V
OUT
(200mV/Div)
I
Load
(10A/Div)
Time (50us/Div)
DS8100-03 August 2007
www.richtek.com
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