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LP3972 Datasheet(PDF) 56 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LP3972
Descripción Electrónicos  Power Management Unit for Advanced Application Processors
PDF  59 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP3972 Datasheet(HTML) 56 Page - National Semiconductor (TI)

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Application Hints (Continued)
Voltage peak-to-peak ripple, root mean squared can be ex-
pressed as follows
Note that the output voltage ripple is dependent on the
inductor current ripple and the equivalent series resistance
of the output capacitor (R
ESR).
The R
ESR is frequency dependent (as well as temperature
dependent); make sure the value used for calculations is at
the switching frequency of the part.
TABLE 2. Suggested Capacitor and Their Suppliers
Model
Type
Vendor
Voltage
Case Size
Inch (mm)
GRM21BR60J106K
Ceramic, X5R
Murata
6.3V
0805 (2012)
JMK212BJ106K
Ceramic, X5R
Taiyo-Yuden
6.3V
0805 (2012)
C2012X5R0J106K
Ceramic, X5R
TDK
6.3V
0805 (2012)
www.national.com
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