RT5028E
CH4 Buck Output Voltage vs. Output Current
CH3 Buck Output Voltage vs. Output Current
3.38
1.25
VIN = 3.6V
VIN = 3.9V
VIN = 4.2V
VIN = 4.5V
VIN = 5V
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
3.33
3.28
3.23
3.18
3.13
3.08
VIN = 3.3V
VIN = 3.6V
VIN = 3.9V
VIN = 4.2V
VIN = 5V
VIN = 5.5V
VIN = 5.5V
L = 2.2μH, COUT = 10μF
L = 2.2μH, COUT = 10μF
0
500
1000
1500
2000
0
200 400 600 800 1000 1200 1400 1600
Output Current (mA)
Output Current (mA)
CH1 Buck Output Voltage vs. Input Voltage
CH2 Buck Output Voltage vs. Input Voltage
1.40
1.55
1.39
1.38
1.37
1.36
1.35
1.34
1.33
1.32
1.31
1.30
1.53
1.51
1.49
1.47
1.45
IOUT = 0mA
IOUT = 500mA
IOUT = 1000mA
IOUT = 1500mA
IOUT = 2000mA
IOUT = 2400mA
IOUT = 0mA
IOUT = 500mA
IOUT = 1000mA
IOUT = 1500mA
IOUT = 2000mA
L = 2.2μH, COUT = 10μF
4.8 5.3 5.8
L = 2.2μH, COUT = 10μF
4.8 5.3 5.8
3.3
3.8
4.3
3.3
3.8
4.3
Input Voltage (V)
Input Voltage (V)
CH3 Buck Output Voltage vs. Input Voltage
CH4 Buck Output Voltage vs. Input Voltage
1.24
3.80
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
1.14
3.60
3.40
3.20
3.00
2.80
2.60
2.40
IOUT = 0mA
IOUT = 500mA
IOUT = 1000mA
IOUT = 1500mA
IOUT = 2000mA
IOUT = 0mA
IOUT = 500mA
IOUT = 1000mA
IOUT = 1600mA
L = 2.2μH, COUT = 10μF
4.8 5.3 5.8
L = 2.2μH, COUT = 10μF
4.8 5.3 5.8
3.3
3.8
4.3
3.3
3.8
4.3
Input Voltage (V)
Input Voltage (V)
Copyright 2016 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
DS5028E-00 October 2016
www.richtek.com
11
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