LP2980AIM5-5.0 Datasheet, PDF (11/24 Pages) Texas Instruments – LP2980-N Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 Package

LP2980-N
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SNOS733M – APRIL 2000 – REVISED JUNE 2013
Multilayer ceramic capacitors that have been verified as suitable for use with the LP2980-N are shown in
Table 2.
Table 2. Surface-Mount Multilayer Ceramic Capacitor Selection Guide
Manufacturer
Tokin
Murata
Manufacturer
Tokin
2.2 μF Surface-Mount Ceramic
4.7 μF Surface-Mount Ceramic
Part Number
1E225ZY5U-C203
GRM42-6Y5V225Z16
Part Number
1E475ZY5U-C304
Figure 34. 1 μF ESR Range
Figure 35. 2.2 μF ESR Range
Figure 36. 10 μF ESR Range
REVERSE CURRENT PATH
The internal PNP power transistor used as the pass element in the LP2980-N has an inherent diode connected
between the regulator output and input. During normal operation (where the input voltage is higher than the
output) this diode is reverse biased (See Figure 37).
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