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L6981 Datasheet(PDF) 4 Page - STMicroelectronics

Part # L6981
Description  38 V, 1.5 A synchronous step-down converter with low quiescent current
PDF  49 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6981 Datasheet(HTML) 4 Page - STMicroelectronics

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3
Typical application circuit
Figure 3. Basic application (adjustable version)
(*) Synchronization is allowed for LNM versions only.
Table 2. Typical application components
Symbol
Value
Description
CIN
10 µF
Input capacitor
CVCC
1 µF
VCC bypass capacitor
CBOOT
100 nF
Bootstrap capacitor
COUT
22 µF
Output capacitor
R1
400 kΩ
VOUT divider upper resistor
R2
82 kΩ
VOUT divider lower resistor
L
33 µH
Output inductor
L6981
Typical application circuit
DS13554 - Rev 1
page 4/49



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