SP6137 データシートの表示（PDF） - Exar Corporation

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SP6137

Wide Input, 900kHz Synchronous PWM Step Down Controller

Exar Corporation 

SP6137

Wide Input, 900kHz Synchronous PWM Step Down

Controller

SP6137 Voltage Mode Control Loop with Loop Dynamic

Definitions:

Resr = Output Capacitor Equivalent Series Resistance

Rdc = Output Inductor DC Resistance

Vramp_pp = SP6137 internal RAMP Amplitude Peak to Peak Voltage

Conditions:

Cz2 >> Cp1 and R1 >> Rz3

Output Load Resistance >> Resr and Rdc

Bode Plot of Type III Error Amplifier Compensation.

© 2008 Exar Corporation

12/15

Rev. 2.0.0

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