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L6984ATR Datasheet(PDF) 18 Page - STMicroelectronics

Part # L6984ATR
Description  36 V 400 mA synchronous step-down switching regulator
PDF  34 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6984ATR Datasheet(HTML) 18 Page - STMicroelectronics

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Device description
L6984
18/34
DocID025378 Rev 3
Figure 10. LCM operation over loading condition (1)
Given the energy stored in the inductor during a burst, the voltage ripple depends on the
capacitor value:
Equation 10
Figure 11. LCM operation over loading condition (2)
When the load current is higher, the IRIPPLE/2 the regulator works in CCM.
VOUT RIPPLE
Q
IL
COUT
--------------
iL t dt

0
TBURST
COUT
--------------------------------------------
==



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