PM6670S View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'PM6670S' PDF : 54 Pages View PDF
Typical operating characteristics
5
Typical operating characteristics
PM6670S
Figure 3. Efficiency vs
load - 1.5 V and 1.8 V, VIN = 12 V
Figure 4. Switching frequency vs
load - 1.8 V, VIN = 12 V
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, 1.8 V
Figure 6. Switching frequency vs
input voltage, 1.5 V
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, 1.8 V, 7 A Figure 8. VDDQ line regulation, 1.5 V, 7 A
1.8000
1.7990
1.7980
1.7970
1.7960
1.7950
1.7940
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)
1.4980
1.4975
1.4970
1.4965
1.4960
Forced PWM
No-Audible P-S
Pulse-Skip
1.4955
1.4950
1.4945
1.4940
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
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Doc ID 14432 Rev 4
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