L4977A Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L4977A

7A SWITCHING REGULATOR

STMicroelectronics 

L4977A

Figure 26: Power Dissipation (device only) vs.

Output Voltage

Figure 27: Heatsink Used to Derive the Device’s

Power Dissipation

Rth

-

Heatsink

=

Tcase − Tamb

Pd

Figure 28: Efficiency vs. Output Current

Figure 29: Efficiency vs. Output Voltage

Figure 30: Efficiency vs. Output Voltage

Figure 31: Open Loop Frequency and Phase

Response of Error Amplifier (see

fig.7C)

16/21

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