PM6670
Typical operating characteristics
5
Typical operating characteristics
Figure 3. Efficiency vs
load - 1.5V and 1.8V, VIN =12V
Figure 4. Switching frequency vs
load - 1.8V, VIN = 12V
100
500
90
450
80
400
70
350
60
300
50
250
Forced PWM
40
DDR2 - Forced PWM
200
No-Audible P-S
30
DDR2 - No-Audible P-S
DDR2 - Pulse-Skip
150
Pulse-Skip
20
DDR3 - Forced PWM
100
10
DDR3 - No-Audible P-S
DDR3 - Pulse-Skip
50
0
0
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Output current (A)
Output current (A)
Figure 5. Switching frequency vs
input voltage, 1.8V
Figure 6. Switching frequency vs
input voltage, 1.5V
p
g
500
500
450
450
400
400
350
350
300
300
250
250
200
200
150
0.0
150
5.0
10.0
15.0
20.0
25.0
30.0
0.0
Input voltage (V)
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
Figure 7. VDDQ line regulation, 1.8V, 7A
Figure 8. VDDQ line regulation, 1.8V, 7A
1.8000
1.7990
1.7980
1.7970
Forced PWM
No-Audible P-S
Pulse-Skip
1.7960
1.7950
1.7940
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
1.4980
1.4975
1.4970
1.4965
1.4960
1.4955
1.4950
1.4945
1.4940
0.0
Forced PWM
No-Audible P-S
Pulse-Skip
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
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