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RT9267PC Datasheet(PDF) 5 Page - Richtek Technology Corporation

Part # RT9267PC
Description  High Efficiency, Low Quiescent, Triple Output DC-DC Converter
PDF  9 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9267PC Datasheet(HTML) 5 Page - Richtek Technology Corporation

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RT9267
Preliminary
5
DS9267-08
March 2007
www.richtek.com
Typical Operating Characteristics
Switching Frequency vs. Temperature
460
480
500
520
540
560
580
-40
-20
0
20
406080
Temperature
2
nd PWM
1
st PWM
(°C)
VDD = 3.3V
Feedback Voltage vs. Temperature
1.250
1.252
1.254
1.256
1.258
1.260
1.262
-40
-20
0
2040
6080
Temperature
2
nd PWM
1
st PWM
VDD = 3.3V
(°C)
LX Pin On Resistance vs. VDD Pin Voltage
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0123456
VDD Pin Voltage (V)
TA = 25°C
LX1 Pin
LX2 Pin
Efficiency vs. Output Current
70
75
80
85
90
95
1
10
100
1000
Output Current (mA)
VIN = 3.2V
VIN = 1.8V
VIN = 2.8V
VIN = 2.0V
VIN = 2.4V
VOUT = 3.3V
TA = 25°C
Total Input Current (IIN) vs. Input Voltage
0
200
400
600
800
1000
1200
1400
1600
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
Input Voltage (V)
VOUT1 = 3.3V, VOUT2 = 18V @ No Load
( Refer to Typical Application Circuit )
Switching Frequency vs. VDD Pin Voltage
0
100
200
300
400
500
600
700
800
900
1000
01
23
45
6
VDD Pin Voltage(V)
2
nd PWM
1
st PWM
FB1 = FB2 = GND
TA = 25°C



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