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RT8105GS Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT8105GS
Description  5V/12V Synchronous Buck PWM DC/DC Controller
PDF  12 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8105GS Datasheet(HTML) 7 Page - Richtek Technology Corporation

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7
RT8105
DS8105-03 April 2011
www.richtek.com
Over Current Protection
Time (20
μs/Div)
UGATE
(20V/Div)
VIN = VCC = 12V, VOUT = 1.5V, ROCSET = 15.4k
Ω
Inductor
Current
(20A/Div)
LGATE
(20V/Div)
VOUT
(2V/Div)
Low side MOSFET RDS(ON) = 9M
Ω
Short Circuit Over Current Protection
Time (2ms/Div)
UGATE
(50V/Div)
VIN = VCC = 12V,
ROCSET = 15k
Ω
Inductor
Current
(20A/Div)
LGATE
(20V/Div)
VOUT
(1V/Div)
Low side MOSFET RDS(ON) = 6M
Ω
short circuit output terminal than power up
Reference Voltage vs. Temperature
0.784
0.788
0.792
0.796
0.800
0.804
0.808
0.812
0.816
-40 -25 -10
5
20
35
50
65
80
95 110 125
Temperature (°C)
VIN = VCC = 5V, No Load
Switching Frequency vs. Temperature
200
220
240
260
280
300
320
340
360
380
400
-40 -25 -10
5
20
35 50
65
80
95 110 125
Temperature (°C)
VIN = VCC = 5V, No Load



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