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AN2808 Datenblatt(PDF) 21 Page - STMicroelectronics

Teilenummer AN2808
Bauteilbeschribung  The PM6670S device is a complete
PDF  40 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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AN2808 Datenblatt(HTML) 21 Page - STMicroelectronics

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PM6670S evaluation tests
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10.3
VDDQ, VTT and VTTREF load regulation
The following figures show the VDDQ, VTT and VTTREF output voltages against the load
currents. The switching section works in pulse-skip mode and directly feeds VTT LDO.
Figure 21.
VDDQ load regulation, VIN = 12 V, pulse-skip mode
Figure 22.
VTT load regulation, LDOIN = VDDQ
1,800
1,802
1,804
1,806
1,808
1,810
1,812
1,814
1,816
0
1
23
456
78
Current [A]
VDDQ
AM00652v1
0,870
0,880
0,890
0,900
0,910
0,920
0,930
-2,0
-1,5
-1,0
-0,5
0,0
0,5
1,0
1,5
2,0
Current [A]
VTT
AM00653v1



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