RT6220
Typical Operating Characteristics
Performance waveforms are tested on the evaluation board of the Typical Application Circuit, VIN = 12V, VOUT = 1V, L = 1μH,
TJ = 25°C, unless otherwise noted.
Efficiency vs. Load Current
Efficiency vs. Load Current
100
95
90
85
80
75
70
65
60
100
95
90
85
80
75
70
VIN = 7.4V
VIN = 12V
VIN = 19V
VIN = 7.4V
VIN = 12V
VIN = 19V
VOUT = 1V, fSW = 500kHz,
L = 1μH, DCR = 3.3mΩ, EN = 2V
VOUT = 3.3V, fSW = 500kHz,
L = 2.2μH, DCR = 7mΩ, EN = 2V
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
Efficiency vs. Load Current
Switching Frequency vs. Load Current
100
95
90
85
80
75
70
600
500
400
300
200
100
0
VIN = 7.4V
VIN = 12V
VIN = 19V
VBYP = VOUT = 5V, fSW = 500kHz,
L = 2.2μH, DCR = 7mΩ, EN = 2V
VIN = 7.4V,
VOUT = 1V, EN = 2V
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
600
500
400
300
200
100
0
600
500
400
300
200
100
0
VIN = 12V,
VOUT = 1V, EN = 2V
VIN = 19V,
VOUT = 1V, EN = 2V
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
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DS6220-10 December 2019
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