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Analog Devices LTM4650 | Demoboard DC2481A-A
LTM4677EY and LTM4650 Step-Down μModule Regulator with PMBus Power System Management LTM4677 + LTM4650, 86A
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-16 V |
| Output 1 | 1.8 V / 86 A |
| IC revision | 1 |
Description
Demonstration circuit 2481A-A is a high efficiency, highdensity, µModule® regulator with 4.5V to 16V input range.The output voltage is adjustable from 0.5V to 1.8V, and itcan supply 86A maximum load current. The demo boardhas 1× LTM®4677 and 1× LTM4650 µModule regulators.The LTM4677 is a dual 18A or single 36A step-downregulator with PMBus power system management, and theLTM4650 is a dual 25A or single 50A step-down regulator.Please see LTM4677 and LTM4650 data sheets for moredetailed information.DC2481A-A powers up to default settings and producepower based on configuration resistors without the needfor any serial bus communication. This allows easy evaluationof the DC/DC converter. To fully explore the extensivepower system management features of the part, downloadthe GUI software LTpowerPlay® onto your PC and useL, LT, LTC, LTM, µModule, LTpowerPlay, Linear Technology and the Linear logo are registeredtrademarks of Linear Technology Corporation. All other trademarks are the property of theirrespective owners.BOARD PHOTOLTC’s I2C/SMBus/PMBus dongle DC1613A to connect tothe board. LTpowerPlay allows the user to reconfigure thepart on the fly and store the configuration in EEPROM, viewtelemetry of voltage, current, temperature and fault status
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | f(mm) | C | Tol. C | VR(V (DC)) | Size | DF(%) | RISO | Ceramic Type | W(mm) | Fl(mm) | Packaging | Pins | Type | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), –, 150 pF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | Capacitance150 pF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | Length1.6 mm | Height0.8 mm | – | – | Operating Temperature -55 °C up to +125 °C | |||||
 | WA-SNSR Self-Retaining Spacer, 4.8 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SNSR Self-Retaining Spacer | Drilling in Panel4.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | Length12.7 mm | – | – | – | Operating Temperature -30 °C up to +85 °C | |||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | PackagingBag | Pins2 | – | – | – | – | Rated Current3 A | Working Voltage200 V (AC) | Operating Temperature -25 °C up to +105 °C | |||
 | WR-PHD Pin Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | PackagingBag | Pins3 | TypeStraight | MountTHT | Length6 mm | – | Rated Current2 A | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |