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R5973AD Datasheet(PDF) 32 Page - STMicroelectronics

Part # R5973AD
Description  Up to 1.5 A step-down switching regulator for aerospace applications
PDF  38 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

R5973AD Datasheet(HTML) 32 Page - STMicroelectronics

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R5973AD
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DocID027027 Rev 1
Figure 21 shows an example of a compensation network stabilizing the system with ceramic
capacitors at the output (the optimum component value depends on the application).
Figure 21. MLCC compensation network example
8.9
External SOFT_START network
At the start-up the device can quickly increase the current up to the current limit in order to
charge the output capacitor. If soft ramp up of the output voltage is required, an external
soft-start network can be implemented as shown in Figure 22. The capacitor C is charged
up to an external reference through R and the BJT clamps the COMP pin.
This clamps the duty cycle, limiting the slew rate of the output voltage.
Figure 22. Soft-start network example
R5973AD
R5973AD



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