Datasheet LTM4603HV (Analog Devices) - 7

LTM4603HV
pin FuncTions (See Package Description for Pin Assignment) VIN (Bank 1):
Power Input Pins. Apply input voltage be-
INTVCC (Pin A7):
This pin is for additional decoupling of tween these pins and PGND pins. Recommend placing the 5V internal regulator. input decoupling capacitance directly between VIN pins
PLLIN (Pin A8):
External Clock Synchronization Input and PGND pins. to the Phase Detector. This pin is internally terminated
VOUT (Bank 3):
Power Output Pins. Apply output load to SGND with a 50k resistor. Apply a clock with a high between these pins and PGND pins. Recommend placing level above 2V and below INTVCC. See the Applications output decoupling capacitance directly between these pins Information section. and PGND pins. See Figure 17.
TRACK/SS (Pin A9):
Output Voltage Tracking and Soft-
PGND (Bank 2):
Power ground pins for both input and Start Pin. When the module is configured as a master output returns. output, then a soft-start capacitor is placed on this pin
V –
to ground to control the master ramp rate. A soft-start
OSNS (Pin M12):
(–) Input to the Remote Sense Ampli- fier. This pin connects to the ground remote sense point. capacitor can be used for soft-start turn on as a stand The remote sense amplifier is used for V alone regulator. Slave operation is performed by putting OUT ≤3.3V. Tie to INTV a resistor divider from the master output to ground, and CC if not used. connecting the center point of the divider to this pin. See
V + OSNS (Pin J12):
(+) Input to the Remote Sense Ampli- the Applications Information section. fier. This pin connects to the output remote sense point. The remote sense amplifier is used for V
MPGM (Pin A12):
Programmable Margining Input. A re- OUT ≤3.3V. Tie to ground if not used. sistor from this pin to ground sets a current that is equal to 1.18V/R. This current multiplied by 10kΩ will equal a
DIFFVOUT (Pin K12):
Output of the Remote Sense Amplifier. value in millivolts that is a percentage of the 0.6V refer- This pin connects to the VOUT_LCL pin. Leave floating if ence voltage. See the Applications Information section. To remote sense amplifier is not used. parallel LTM4603HVs, each requires an individual MPGM
DRVCC (Pin E12):
This pin normally connects to INTVCC resistor. Do not tie MPGM pins together. for powering the internal MOSFET drivers. This pin can
fSET (Pin B12):
Frequency Set Internally to 1MHz. An be biased up to 6V from an external supply with about external resistor can be placed from this pin to ground 50mA capability, or an external circuit shown in Figure to increase frequency. See the Applications Information 18. This improves efficiency at the higher input voltages section for frequency adjustment. by reducing power dissipation in the module. TOP VIEW CC INTV PLLIN TRACK/SS RUN COMP MPGM VIN fSET MARG0 MARG1 DRVCC VFB PGND PGOOD SGND V + OSNS DIFFVOUT VOUT VOUT_LCL V – OSNS LGA PACKAGE 118-LEAD (15mm × 15mm × 2.82mm) 4603hvfa For more information www.linear.com/LTM4603HV 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Related Parts