DS5028E Datasheet, PDF (10/41 Pages) Richtek Technology Corporation – Integrated PMIC with 4-Channel Synchronous Buck Converters, 8 LDOs, and MTP Non-Volatile Memory for Industrial Applications

RT5028E
Typical Operating Characteristics
CH1 Buck Efficiency vs. Output Current
100
90
80
70
VIN = 3.3V
VIN = 3.6V
60
VIN = 3.9V
VIN = 4.2V
50
VIN = 5V
40
VIN = 5.5V
30
20
10
0
10
VOUT = 1.35V, L = 2.2μH, COUT = 10μF
100
1000
Output Current (mA)
10000
CH3 Buck Efficiency vs. Output Current
100
90
80
70
VIN = 3.3V
VIN = 3.6V
60
VIN = 3.9V
VIN = 4.2V
50
VIN = 5V
40
VIN = 5.5V
30
20
10
0
10
VOUT = 1.2V, L = 2.2μH, COUT = 10μF
100
1000
Output Current (mA)
10000
CH1 Buck Output Voltage vs. Output Current
1.39
1.38
1.37
1.36
VIN = 3.3V
VIN = 3.6V
VIN = 3.9V
VIN = 4.2V
VIN = 5V
VIN = 5.5V
1.35
1.34
1.33
1.32
0
L = 2.2μH, COUT = 10μF
300 600 900 1200 1500 1800 2100 2400
Output Current (mA)
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10
CH2 Buck Efficiency vs. Output Current
100
90
80
70
VIN = 3.3V
VIN = 3.6V
60
VIN = 3.9V
VIN = 4.2V
50
VIN = 5V
40
VIN = 5.5V
30
20
10
0
10
VOUT = 1.5V, L = 2.2μH, COUT = 10μF
100
1000
Output Current (mA)
10000
CH4 Buck Efficiency vs. Output Current
100
90
80
VIN = 3.6V
VIN = 3.9V
70
VIN = 4.2V
60
VIN = 4.5V
VIN = 5V
50
VIN = 5.5V
40
30
20
10
0
10
VOUT = 3.3V, L = 2.2μH, COUT = 10μF
100
1000
Output Current (mA)
10000
CH2 Buck Output Voltage vs. Output Current
1.53
1.52
1.51
1.50
1.49
VIN = 3.3V
VIN = 3.6V
VIN = 3.9V
VIN = 4.2V
VIN = 5V
VIN = 5.5V
1.48
1.47
0
L = 2.2μH, COUT = 10μF
500
1000
1500
Output Current (A)
2000
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DS5028E-00 October 2016