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AN2566 Datasheet(PDF) 23 Page - STMicroelectronics

Part # AN2566
Description  PM6680 evaluation kit dual step-down controller
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2566 Datasheet(HTML) 23 Page - STMicroelectronics

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AN2566
Test setup and performance summary
23/29
Figure 18.
Device current consumption vs. input voltage
10.6
Switching frequency vs. load current
Figure 19 and Figure 20 show the switching frequency variation with the load current in
PWM mode, skip mode and no-audible skip mode. 12 V is applied at the VIN+ and VIN- test
points.
Figure 19.
1.5 V output switching frequency vs. load current
STANDBY MODE INPUT BATTERY CURRENT
vs INPUT VOLTAGE
172
174
176
178
180
182
184
8
10121416
182022242628
INPUT VOLTAGE [V]
1.5V SWITCHING FREQUENCY
vs LOAD CURRENT
0
50
100
150
200
250
0.01
0.1
1
10
LOAD CURRENT [A]
PWM
NO AUD. SKIP
SKIP



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