RT8206A/B
VOUT1 Switching Frequency vs. Load Current
VOUT1 Switching Frequency vs. Load Current
250
250
VIN = 12V, TON = VCC, EN2 = GND, EN1 = VCC
ENLDO = VIN, FB1 = GND
,
VIN = 7V, TON = VCC, EN2 = GND, EN1 = VCC
ENLDO = VIN, FB1 = GND
,
225
200
175
150
125
100
75
225
200
175
150
125
100
75
PWM Mode
PWM Mode
50
50
Ultrasonic Mode
DEM Mode
Ultrasonic Mode
DEM Mode
25
25
0
0
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
VOUT1 Switching Frequency vs. Load Current
VOUT2 Switching Frequency vs. Load Current
250
300
VIN = 7V, TON = VCC, EN2 = VCC, EN1 = GND,
ENLDO = VIN, FB2 = GND
VIN = 25V, TON = VCC, EN2 = GND, EN1 = VCC
ENLDO = VIN, FB1 = GND
,
275
225
200
175
150
125
100
75
250
PWM Mode
225
PWM Mode
200
175
150
125
100
75
50
Ultrasonic Mode
Ultrasonic Mode
50
25
25
DEM Mode
DEM Mode
0
0
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
VOUT2 Switching Frequency vs. Load Current
VOUT2 Switching Frequency vs. Load Current
300
300
VIN = 12V, TON = VCC, EN2 = VCC, EN1 = GND,
ENLDO = VIN, FB2 = GND
VIN = 25V, TON = VCC, EN2 = VCC, EN1 = GND,
ENLDO = VIN, FB2 = GND
275
275
250
250
PWM Mode
PWM Mode
225
225
200
175
150
125
100
75
200
175
150
125
100
75
Ultrasonic Mode
Ultrasonic Mode
50
50
25
0
25
DEM Mode
0.1
DEM Mode
0
0.001
0.001
0.01
1
10
0.01
0.1
1
10
Load Current (A)
Load Current (A)
DS8206A/B-03 December 2009
www.richtek.com
13