LTM4631 Datasheet, PDF (8/32 Pages) Linear Technology – Ultrathin Dual 10A or Single 20A DC/DC μModule Regulator

LTM4631
PIN FUNCTIONS (Recommended to Use Test Points to Monitor Signal Pin Connections.)
RUN1, RUN2 (F5, F9): Run Control Pin. A voltage above
1.25V will turn on each channel in the module. A voltage
below 1.25V on the RUN pin will turn off the related chan-
nel. Each RUN pin has a 1µA pull-up current, once the
RUN pin reaches 1.2V an additional 4.5µA pull-up current
is added to this pin.
DIFFOUT (F8): Internal Remote Sense Amplifier Output.
Connect this pin to V_OUTS1 or V_OUTS2 depending on which
output is using remote sense. In parallel operation connect
one of the V_OUTS pin to DIFFOUT for remote sensing.
SW1, SW2 (G2, G11): Switching node of each channel
that is used for testing purposes. Also an R-C snubber
network can be applied to reduce or eliminate switch node
ringing, or otherwise leave floating. See the Applications
Information section.
PHASMD (G4): Connect this pin to SGND, INTV_CC, or float-
ing this pin to select the phase of CLKOUT to 60 degrees,
120 degrees, and 90 degrees respectively.
CLKOUT (G5): Clock output with phase control using the
PHASMD pin to enable multiphase operation between
devices. See the Applications Information section.
PGOOD1, PGOOD2 (G9, G8): Output Voltage Power
Good Indicator. Open drain logic output that is pulled to
ground when the output voltage is not within ±10% of
the regulation point.
INTV_CC (H8): Internal 5V Regulator Output. The control
circuits and internal gate drivers are powered from this
voltage. Decouple this pin to PGND with a 4.7µF low ESR
tantalum or ceramic. INTV_CC is activated when either RUN1
or RUN2 is activated.
TEMP (J6): Onboard General Purpose Temperature Diode
for Monitoring the VBE Junction Voltage Change with
Temperature. See the Applications Information section.
EXTV_CC (J7): External power input that is enabled through
a switch to INTV_CC whenever EXTV_CC is greater than 4.7V.
Do not exceed 6V on this input, and connect this pin to
V_IN when operating V_IN on 5V. An efficiency increase will
occur that is a function of the (V_IN – INTV_CC) multiplied by
power MOSFET driver current. Typical current requirement
is 30mA. V_IN must be applied before EXTV_CC, and EXTV_CC
must be removed before V_IN.
V_IN (M2-M11, L2-L11, J2-J4, J9-J11, K2-K4, K9-K11):
Power Input Pins. Apply input voltage between these pins
and GND pins. Recommend placing input decoupling
capacitance directly between V_IN pins and GND pins.
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