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AN2829 Datasheet(PDF) 21 Page - STMicroelectronics

Part # AN2829
Description  Dual step-down controller with auxilary voltages
PDF  32 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2829 Datasheet(HTML) 21 Page - STMicroelectronics

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AN2829
Test setup and performance summary
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Figure 11.
Section 1 shutdown waveforms
Figure 12.
Section 2 shutdown waveforms
11.4
1.5 V and 1.05 output efficiency vs. load current
Figure 13 and 14 show the efficiency versus load current at different input voltage values in
PWM mode, skip mode and no audible skip mode. Three different input voltages are used:
●
Blue: VIN=9 V
●
Green: VIN=12 V
●
Red: VIN=18 V
AM01417v1
OUT1
Lgate1
EN1
AM01418v1
OUT2
Lgate2
EN2



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