PM6675S Datasheet, PDF (14/53 Pages) STMicroelectronics – High efficiency step-down controller with embedded 2 A LDO regulator

Typical operating characteristics
PM6675S
Figure 9. VOUT line regulation, 1.5 V, 0 A
Figure 10. VOUT line regulation, 1.25 V, 0 A
1.540
1.535
1.530
1.525
1.520
1.515
1.510
0
10
20
Input Voltage [V]
SKIP @ 0A
No Aud. SKIP @ 0A
PWM @ 0A
30
1.285
1.280
1.275
1.270
1.265
1.260
0
SKIP @ 0A
No Aud. SKIP @ 0A
PWM @ 0A
10
20
30
Input Voltage [V]
Figure 11. VOUT line regulation, 1.5 V
Figure 12. VOUT line regulation, 1.25 V
1.5170
1.5165
1.5160
1.5155
1.5150
1.5145
1.5140
1.5135
1.5130
0
5
10
15
20
25
30
Input Voltage [V]
PWM @ 0A
PWM @ 7A
1.2660
1.2655
1.2650
1.2645
1.2640
1.2635
1.2630
1.2625
0
PWM @ 0A
PWM @ 7A
5
10
15
20
25
30
Input Voltage [V]
Figure 13. Switching frequency vs input
voltage, 1.5 V
Figure 14. Switching frequency vs input
voltage, 1.25 V
600
550
500
450
400
350
300
250
0
5
10
15
20
25
30
Input Voltage [V]
PWM @ 0A
PWM @ 7A
600
550
500
450
400
350
300
250
200
0
5
10
15
20
25
30
Input Voltage [V]
PWM @ 0A
PWM @ 7A
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