Datasheet LTM4603, LTM4603-1 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 20V, 6A DC/DC µModule Regulator with PLL, Output Tracking and Margining |
| Pages / Page | 26 / 7 — pin Functions (See Package Description for Pin Assignment) VIN (Bank 1):. … |
| File Format / Size | PDF / 454 Kb |
| Document Language | English |
pin Functions (See Package Description for Pin Assignment) VIN (Bank 1):. DRVCC (Pin E12):. OUT (Bank 3):. INTVCC (Pin A7):
Model Line for this Datasheet
Text Version of Document
LTM4603/LTM4603-1
pin Functions (See Package Description for Pin Assignment) VIN (Bank 1):
Power Input Pins. Apply input voltage be-
DRVCC (Pin E12):
This pin normally connects to INTVCC tween these pins and PGND pins. Recommend placing for powering the internal MOSFET drivers. This pin can input decoupling capacitance directly between VIN pins be biased up to 6V from an external supply with about and PGND pins. 50mA capability, or an external circuit shown in Figure
V
16. This improves efficiency at the higher input voltages
OUT (Bank 3):
Power Output Pins. Apply output load between these pins and PGND pins. Recommend placing by reducing power dissipation in the module. output decoupling capacitance directly between these pins
INTVCC (Pin A7):
This pin is for additional decoupling of and PGND pins. See Figure 15. the 5V internal regulator.
PGND (Bank 2):
Power ground pins for both input and
PLLIN (Pin A8):
External Clock Synchronization Input output returns. to the Phase Detector. This pin is internally terminated
V –
to SGND with a 50k resistor. Apply a clock with a high
OSNS (Pin M12):
(–) Input to the Remote Sense Ampli- fier. This pin connects to the ground remote sense point. level above 2V and below INTVCC. See the Applications The remote sense amplifier is used for V Information section. OUT ≤ 3.3V. Tie to INTVCC if not used.
TRACK/SS (Pin A9):
Output Voltage Tracking and Soft-
NC1 (Pin M12):
No internal connection on the LTM4603-1. Start Pin. When the module is configured as a master output, then a soft-start capacitor is placed on this pin
V + OSNS (Pin J12):
(+) Input to the Remote Sense Ampli- to ground to control the master ramp rate. A soft-start fier. This pin connects to the output remote sense point. capacitor can be used for soft-start turn on as a stand The remote sense amplifier is used for VOUT ≤ 3.3V. Tie alone regulator. Slave operation is performed by putting to ground if not used. a resistor divider from the master output to ground, and
NC2 (Pin J12):
No internal connection on the LTM4603-1. connecting the center point of the divider to this pin. See the Applications Information section.
DIFFVOUT (Pin K12):
Output of the Remote Sense Ampli- fier. This pin connects to the VOUT_LCL pin. Leave floating
MPGM (Pin A12):
Programmable Margining Input. A re- if remote sense amplifier is not used. sistor from this pin to ground sets a current that is equal to 1.18V/R. This current multiplied by 10kW will equal a
NC3 (Pin K12):
No internal connection on the LTM4603-1. value in millivolts that is a percentage of the 0.6V refer- ence voltage. See Applications Information. To parallel LTM4603s, each requires an individual MPGM resistor. Do not tie MPGM pins together. TOP VIEW V CC INT PLLIN TRACK/SS RUN COMP MPGM A VIN BANK 1 B fSET C MARG0 D MARG1 E DRVCC PGND F VFB BANK 2 G PGOOD H SGND J V + OSNS (NC2, LTM4603-1) V K OUT DIFFV OUT (NC3, LTM4603-1) BANK 3 L VOUT_LCL M V – OSNS (NC1, LTM4603-1) 1 2 3 4 5 6 7 8 9 10 11 12 4603fb 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Application Package Description Revision History Typical Application Package Photograph Related Parts
pin Functions (See Package Description for Pin Assignment) VIN (Bank 1):
Power Input Pins. Apply input voltage be-
DRVCC (Pin E12):
This pin normally connects to INTVCC tween these pins and PGND pins. Recommend placing for powering the internal MOSFET drivers. This pin can input decoupling capacitance directly between VIN pins be biased up to 6V from an external supply with about and PGND pins. 50mA capability, or an external circuit shown in Figure
V
16. This improves efficiency at the higher input voltages
OUT (Bank 3):
Power Output Pins. Apply output load between these pins and PGND pins. Recommend placing by reducing power dissipation in the module. output decoupling capacitance directly between these pins
INTVCC (Pin A7):
This pin is for additional decoupling of and PGND pins. See Figure 15. the 5V internal regulator.
PGND (Bank 2):
Power ground pins for both input and
PLLIN (Pin A8):
External Clock Synchronization Input output returns. to the Phase Detector. This pin is internally terminated
V –
to SGND with a 50k resistor. Apply a clock with a high
OSNS (Pin M12):
(–) Input to the Remote Sense Ampli- fier. This pin connects to the ground remote sense point. level above 2V and below INTVCC. See the Applications The remote sense amplifier is used for V Information section. OUT ≤ 3.3V. Tie to INTVCC if not used.
TRACK/SS (Pin A9):
Output Voltage Tracking and Soft-
NC1 (Pin M12):
No internal connection on the LTM4603-1. Start Pin. When the module is configured as a master output, then a soft-start capacitor is placed on this pin
V + OSNS (Pin J12):
(+) Input to the Remote Sense Ampli- to ground to control the master ramp rate. A soft-start fier. This pin connects to the output remote sense point. capacitor can be used for soft-start turn on as a stand The remote sense amplifier is used for VOUT ≤ 3.3V. Tie alone regulator. Slave operation is performed by putting to ground if not used. a resistor divider from the master output to ground, and
NC2 (Pin J12):
No internal connection on the LTM4603-1. connecting the center point of the divider to this pin. See the Applications Information section.
DIFFVOUT (Pin K12):
Output of the Remote Sense Ampli- fier. This pin connects to the VOUT_LCL pin. Leave floating
MPGM (Pin A12):
Programmable Margining Input. A re- if remote sense amplifier is not used. sistor from this pin to ground sets a current that is equal to 1.18V/R. This current multiplied by 10kW will equal a
NC3 (Pin K12):
No internal connection on the LTM4603-1. value in millivolts that is a percentage of the 0.6V refer- ence voltage. See Applications Information. To parallel LTM4603s, each requires an individual MPGM resistor. Do not tie MPGM pins together. TOP VIEW V CC INT PLLIN TRACK/SS RUN COMP MPGM A VIN BANK 1 B fSET C MARG0 D MARG1 E DRVCC PGND F VFB BANK 2 G PGOOD H SGND J V + OSNS (NC2, LTM4603-1) V K OUT DIFFV OUT (NC3, LTM4603-1) BANK 3 L VOUT_LCL M V – OSNS (NC1, LTM4603-1) 1 2 3 4 5 6 7 8 9 10 11 12 4603fb 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Application Package Description Revision History Typical Application Package Photograph Related Parts
