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PM6670AS View Datasheet(PDF) - STMicroelectronics

Part Name
Description
MFG CO.
'PM6670AS' PDF : 53 Pages View PDF
PM6670AS
Typical operating characteristics
5
Typical operating characteristics
Figure 3. Efficiency vs load - 1.5 V and 1.8 V, Figure 4. Switching frequency vs load - 1.8 V,
Vin = 12 V
Vin = 12 V
100
500
90
450
80
400
70
350
60
300
50
250
Forced PW M
40
DDR2 - Forced PWM
200
No-Audible P-S
30
DDR2 - No-Audible P-S
DDR2 - Pulse-Skip
150
P uls e-S k ip
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 curre nt (A)
Figure 5. Switching frequency vs input
voltage, 1.8 V
Figure 6. Switching frequency vs input
voltage, 1.5 V
500
450
400
350
300
250
200
150
0.0
500
450
400
350
300
250
200
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
1.4980
1.7990
1.7980
1.7970
Forced PWM
No-Audible P-S
Pulse-Skip
1.4975
1.4970
1.4965
1.4960
Forced PWM
No-Audible P-S
Pulse-Skip
1.7960
1.7950
1.4955
1.4950
1.4945
1.7940
1.4940
0.0
5.0
10.0
15.0
20.0
25.0
30.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
Input voltage (V)
Input voltage (V)
Doc ID 14436 Rev 2
13/53
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