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L6986H データシート(PDF) 27 Page - STMicroelectronics

部品番号 L6986H
部品情報  38 V, 2 A synchronous step-down switching regulator with 30 μA quiescent current
PDF  68 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6986H データシート(HTML) 27 Page - STMicroelectronics

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Figure 25. LCM operation over loading condition (part 4-CCM)
4.8.3
Quiescent current in LCM with switchover
The current absorbed from the input voltage in the low consumption mode while regulating the output voltage at
the zero output load depends on the input voltage value and the selected skip current level, as shown in
Figure 26. Quiescent current at VOUT = 3.3 V and zero output load and Figure 27. Quiescent current at VOUT = 5
V and zero output load
Figure 26. Quiescent current at VOUT = 3.3 V and zero output load
When VIN is adequately higher than VOUT (see Figure 26. Quiescent current at VOUT = 3.3 V and zero output
load ) the device works in the bursts mode operation, minimizing the power consumption over the entire input
voltage (see Section 4.8.2 Low consumption mode (LCM)).
L6986H
Light-load operation
DS12905 - Rev 2
page 27/68



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