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RT8249 Datasheet(PDF) 12 Page - Richtek Technology Corporation

Part # RT8249
Description  Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs
PDF  23 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8249 Datasheet(HTML) 12 Page - Richtek Technology Corporation

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RT8249A/B/C
12
DS8249A/B/C-02
June 2014
www.richtek.com
©
Copyright
2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Typical Operating Characteristics
VOUT2 Switching Frequency vs. Input Voltage
0
50
100
150
200
250
300
350
400
450
500
550
5
7
9
11
131517
1921
2325
Input Voltage (V)
EN1 = 0V, EN2 = LDO3,
IOUT2 = 6A, VCLK off, BYP1 on
VOUT1 Switching Frequency vs. Input Voltage
0
50
100
150
200
250
300
350
400
450
5
7
9
11
131517
1921
2325
Input Voltage (V)
EN1 = LDO3, EN2 = 0V,
IOUT1 = 6A, VCLK off, BYP1 on
VOUT1 Switching Frequency vs. Output Current
0
50
100
150
200
250
300
350
400
450
0.001
0.01
0.1
1
10
Output Current (A)
EN1 = LDO3, EN2 = 0V, VCLK off, BYP1 on
VIN = 19V
VIN = 11.1V
VIN = 7.4V
VOUT2 Switching Frequency vs. Output Current
0
100
200
300
400
500
600
0.001
0.01
0.1
1
10
Output Current (A)
EN1 = 0V , EN2 = LDO3, VCLK off, BYP1 on
VIN = 19V
VIN = 11.1V
VIN = 7.4V
VOUT2 Efficiency vs. Output Current
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output Current (A)
EN1 = 0V, EN2 = LDO3, VCLK off, BYP1 on
VIN = 7.4V
VIN = 11.1V
VIN = 14.8V
VIN = 20.5V
VOUT1 Efficiency vs. Output Current
75
80
85
90
95
100
0.001
0.01
0.1
1
10
Output Current (A)
EN1 = LDO3, EN2 = 0V, VCLK off, BYP1 on
VIN = 7.4V
VIN = 11.1V
VIN = 14.8V
VIN = 20.5V



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