DDR memory power supply circuit

Posted on Dec 11, 2010    9940

DDR memory power supply circuit Shows the notebook DDR memory power supply circuit, the power control circuit chip MAX8632, the chip power supply terminal VDD is Sv (detection

DDR memory power supply circuit
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point 1), the battery DC supply voltage between 4.5 V-2.8 V, the the switching voltage is applied to the field effect transistor Ql drain power supply control chip DH, DL outputs a PWM pulse of opposite phase signals, which signals are applied to Ql, Q2 of the gate, under the action of the PWM pulse Q1, Q2 alternately working, the DC voltage of the battery becomes switching voltage, and then after the LC filter output voltage of 2.V for the memory circuitry.

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