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LP3972 数据表(PDF) 56 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LP3972
功能描述  Power Management Unit for Advanced Application Processors
PDF  59 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LP3972 数据表(HTML) 56 Page - National Semiconductor (TI)

Back Button LP3972 Datasheet HTML 51Page - National Semiconductor (TI) LP3972 Datasheet HTML 52Page - National Semiconductor (TI) LP3972 Datasheet HTML 53Page - National Semiconductor (TI) LP3972 Datasheet HTML 54Page - National Semiconductor (TI) LP3972 Datasheet HTML 55Page - National Semiconductor (TI) LP3972 Datasheet HTML 56Page - National Semiconductor (TI) LP3972 Datasheet HTML 57Page - National Semiconductor (TI) LP3972 Datasheet HTML 58Page - National Semiconductor (TI) LP3972 Datasheet HTML 59Page - 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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