RT6576C/D
Typical Operating Characteristics
Efficiency vs. Load Current
Efficiency vs. Load Current
100
100
90
80
70
60
50
40
30
20
10
0
VOUT1
VOUT2
90
VIN = 7.4V
VIN = 11.1V
VIN = 14.8V
VIN = 20V
VIN = 7.4V
VIN = 11.1V
VIN = 14.8V
VIN = 20V
80
70
60
50
40
30
20
EN1 = LDO3, EN2 = 0V, VCLK On
EN1 = 0V, EN2 = LDO3, VCLK On
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
Switching Frequency vs. Load Current
Switching Frequency vs. Load Current
350
300
250
200
150
100
50
400
350
300
250
200
150
100
50
VOUT1, EN1 = LDO3, EN2 = 0V
VOUT2, EN1 = 0V, EN2 = LDO3
VIN = 20V
VIN = 12V
VIN = 7.4V
VIN = 20V
VIN = 12V
VIN = 7.4V
0
0
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
Switching Frequency vs. Input Voltage
Switching Frequency vs. Input Voltage
400
350
300
250
200
150
100
50
350
300
250
200
150
100
50
VOUT2
VOUT1
EN1 = 0V, EN2 = LDO3, ILOAD = 6A
EN1 = LDO3, EN2 = 0V, ILOAD = 6A
0
0
5
7
9
11 13 15 17 19 21 23 25
Input Voltage (V)
5
7
9
11 13 15 17 19 21 23 25
Input Voltage (V)
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is a registered trademark of Richtek Technology Corporation.
DS6576C/D-03 February 2016
www.richtek.com
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