MP2930 - 4-PHASE PWM CONTROLLER WITH 8-BIT DAC CODE

MP2930 Rev. 1.01

www.MonolithicPower.com

6

10/30/2013

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Pin #

Name

Description

34

FS

PWM frequency set pin. A resistor from FS to GND will set the switching frequency.

35

SS

Soft start oscillator frequency set pin. A resistor from SS to GND will set up the soft-

start ramp rate.

36

VR_RDY

Open drain logic output. When soft start completed and output voltage is regulated in

the value determined by ID setting, VR_RDY is logic high.

37

VR_FAN

Open drain logic output. It is open when VR temperature reaches certain value

38

VR_HOT

Open drain logic output. It is open when VR temperature reaches certain value

39

TM

NTC resistor in this pin is used to monitor inductor temperature. Connect this pin

through an NTC thermistor to GND and a resistor to VCC of the controller. The voltage

at this pin is reverse proportional to the VR temperature.

40

ID7

ID input