LTM4681 Demo Board | PolyPhase Single Output Step-Down µModule Regulator with Digital PSM: 4 × LTM4681 at 480A
Analog Devices Inc.
Demonstration circuit DC3082A-C features the LTM4681: the wide input and output voltage range, high efficiency and power density, high current PolyPhase® single output DC/DC step-down μModule® regulator with digital power system management. DC3082A-C is configured as 16-phase single output using 4× LTM4681. The factory default input voltage is 12V typical, output voltage is 1V at 480A typical or 500A peak with recommended 400LFM forced airflow. The demo board output voltages can be adjusted from 0.6V to 1V. Programming the output voltages to any value that is greater than 1V, requires derating output current based on thermal derating curves provided in the data sheet of the LTM4681. Heat sink or other appropriate electronic cooling systems can also be used in conjunction with forced airflow to further optimize the output power when the output is on and loaded with maximum output current. The factory default switching frequency is preset at 350kHz typical. DC3082A-C comes with PMBus interface and digital power system management functions. An onboard 12-pin connector is available for users to connect the dongle DC1613A to the demo board, provides an easy way to communicate and program the part using LTpowerPlay® software development tool. LTpowerPlay software and I2C/PMBus/SMBus dongle DC1613A allows users to monitor real time telemetry of input and output voltages, input and output current, switching frequency, internal IC die temperatures, power stage component temperatures and fault logs. Programmable parameters include device address, output voltages, control loop compensation, switching frequency, phase interleaving, DCM or CCM mode of operation, digital soft-start, sequencing and time based shutdown, fault responses to input and output overvoltage, output overcurrent, IC die and power component overtemperature.
The LTM4681 is available in a thermally enhanced, low profile 330-Lead (15mm × 22mm × 8.17mm) BGA package. It is recommended to read the data sheet and the demo manual of LTM4681 prior to use or making any hardware changes to DC3082A-C.
LTpowerPlay software can be downloaded here.
USB to PMBus Controller Dongle DC1613A for use with LTpowerPlay is available here.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc | DC3082A-C | 0 | $361.57 | $361.57 | $361.57 | $361.57 | $361.57 | $361.57 | |
element14 APAC | DC3082A-C | 3 | 1 | * $390.06 | * $390.06 | * $390.06 | * $390.06 | * $390.06 | * $390.06 |
Farnell | DC3082A-C | 3 | 1 | * $384.13 | * $384.13 | * $384.13 | * $384.13 | * $384.13 | * $384.13 |
Mouser Electronics | 584-DC3082A-C | 7 | 1 | $389.79 | $389.79 | $389.79 | $389.79 | $389.79 | $389.79 |
Newark | DC3082A-C | 3 | 1 | $387.40 | $387.40 | $387.40 | $387.40 | $387.40 | $387.40 |
LT8642-1 | 18V, 10A Synchronous Step-Down Silent Switcher
Analog Devices Inc.
Demonstration circuit 3162A is a 18V, 10A synchronous step-down Silent Switcher® with spread spectrum frequency modulation featuring the LT8642-1. The demo board is designed for 1.2V output from a 2.8V to 18V input. The LT8642-1 is a compact, low emission, high efficiency, and high speed synchronous monolithic stepdown switching regulator. Special Silent Switcher architecture minimizes EMI emissions. Selectable spread spectrum mode can further improve EMI performance. Fast minimum on-time of 20ns enables high VIN to low VOUT conversion at high frequency.
The LT8642-1 switching frequency can be programmed either via a resistor or external clock over a 200kHz to 3MHz range. The default frequency of demo circuit 3162A is 2MHz. The LT8642-1 SYNC/MODE pin on the demo board is grounded (JP1 at BURST position) by default for low ripple Burst Mode® operation. Spread spectrum mode and forced continuous mode can be selected respectively by moving JP1 shunt. To synchronize to an external clock, move JP1 to FCM/SYNC and apply the external clock to the SYNC terminal.
The LT8642-1 data sheet gives a complete description of the part, operation, and application information. The data sheet must be read in conjunction with this demo manual for demo circuit 3162A. The LT8642-1 is assembled in a 3mm × 4mm LQFN package with exposed pads for low thermal resistance. The layout recommendations for low EMI operation and maximum thermal performance are available in the data sheet section Low EMI PCB Layout and Thermal Considerations.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
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Analog Devices Inc | DC3162A | 0 | $66.88 | $66.88 | $66.88 | $66.88 | $66.88 | $66.88 | |
Mouser Electronics | 584-DC3162A | 14 | 1 | $69.22 | $69.22 | $69.22 | $69.22 | $69.22 | $69.22 |
DC326C
Analog Devices Inc.
to 60V. A high efficiency 1.5A, 0.2? switch is included on the die along with all the necessary
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc | DC326C | 0 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | |
Mouser Electronics | 584-DC326C | 3 | 1 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 |
DC433A
Analog Devices Inc.
The LT1961 is a 1.25MHz monolithic boost switching regulator. A high efficiency 1.5A, 0.2? switch
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc | DC433A | 0 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | |
Mouser Electronics | 584-DC433A | 0 | 1 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 |
LTC1929CG-PG | Dual Phase, Step-Down Supply with Hot Swappable Load Share Module, 5V to 14V Input, 3.3VOUT @ 40A
Analog Devices Inc.
DC439A-A: Demo Board for the LTC1929 2-Phase, High Efficiency, Synchronous Step-Down Switching Regulators.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
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Mouser Electronics | N/A | 0 |
LT1946EMS8 LT1946AEMS8E | 12VOUT Boost Converter, +5VIN, +12VOUT/400mA and Triple Output TFT LCD Bias Supply, 3.3VIN, VOUT = +23V/5mA, +8V/350mA, -8V/10mA
Analog Devices Inc.
DC459A Demo Board for:
LT1946 1.2MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start
LT1946A
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc | DC459A | 0 | $110.35 | $110.35 | $110.35 | $110.35 | $110.35 | $110.35 | |
Mouser Electronics | 584-DC459A | 0 | 1 | $114.20 | $114.20 | $114.20 | $114.20 | $114.20 | $114.20 |
LTC3700EMS | Step-Down Regulator With LDO, 5 - 9Vin1, 3.3VOUT1 @ 1A, Jumper Sel. 3.3 - 5VIN2, 2.5VOUT2 @ 150mA
Analog Devices Inc.
DC463A: Demo Board for LTC3700 Constant Frequency Step-Down DC/DC Controller with LDO Regulator.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | DC463A-ND | 0 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | |
Analog Devices Inc | DC463A | 0 | $107.00 | $107.00 | $107.00 | $107.00 | $107.00 | $107.00 | |
Mouser Electronics | 584-DC463A | 0 | 1 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 |
DC471A
Analog Devices Inc.
A high efficiency 3A, 0.1? switch is included on the die along with all the necessary oscillator,
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc | DC471A | 0 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | $117.70 | |
Mouser Electronics | 584-DC471A | 0 | 1 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 | $121.81 |
Win Source | DC471A | 560 |
DC500A-D
Analog Devices Inc.
inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Mouser Electronics | 584-DC500A-D | 0 | 1 | $125.62 | $125.62 | $125.62 | $125.62 | $125.62 | $125.62 |
LT1937ESC6 | 2-Ckt, High Efficiency Constant-Current Single Cell Li-Ion White LED (4) Driver with On-Board Battery
Analog Devices Inc.
DC507A: Demo Board for the LT1937 White LED Step-Up Converter in SC70 and ThinSOT.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc | DC507A | 0 | $88.28 | $88.28 | $88.28 | $88.28 | $88.28 | $88.28 | |
Mouser Electronics | 584-DC507A | 0 | 1 | $91.36 | $91.36 | $91.36 | $91.36 | $91.36 | $91.36 |
Win Source | DC507A | 1 | 1 |