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Analog Devices LTM4652 | Demoboard EVAL-LTM4652-AZ
LTM4652 | Bidirectional Dual 25A or Single 50A Step-Down μModule Regulator
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Output 1 | 1.5 V / 25 A |
| Output 2 | 1.2 V / 25 A |
Description
The EVAL-LTM4652-AZ evaluation board features the LTM®4652EY, source/sink dual ±25A or single ±50A output switching mode step-down DC-to-DC μModule® regulator. The input voltage is from 4.5V to 18V. The output voltage is programmable from 0.6V to 5V. The EVAL-LTM4652-AZ evaluation board can deliver 25A maximum current from each channel. As explained in the LTM4652 data sheet, the output current derating is necessary for certain VIN, VOUT, and thermal conditions. The EVAL-LTM4652-AZ evaluation board operates in continuous-conduction mode (CCM) in heavy load conditions. For high efficiency at low load currents, pulse-skipping mode (PSM) is selected with the MODE jumper (JP1) for noise-sensitive applications. Two outputs can be connected in parallel for a single 50A output solution with optional jumper resistors. The evaluation board allows the user to program how its output ramps up and down through the TRACK/SS pin. The output can be set up to either coincidentally, or ratiometrically track with another supply’s output. Remote output voltage sensing is available for improved output voltage regulation at the load point. These features and the compact size of the LTM4652, 16mm × 16mm × 4.92mm, BGA package, make it ideal for use in many high-density point-of-load (POL) regulation applications. The LTM4652 data sheet must be read in conjunction with this user guide for working on or modifying the EVAL-LTM4652-AZ evaluation board.
Features
- Bidirectional Output Current up to ±25A
- Parallel Channel Current Sharing up to ±50A
- Current Mode Control/Fast Transient Response
- Output Voltage Differential Remote Sensing
Typical applications
- Telecom and Networking Equipment
- Industrial Equipment
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Q(%) | 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 50 V(DC), 47 pF, ±5% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance47 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0603 | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | Length1.6 mm | Height0.8 mm | – | – | Operating Temperature -55 °C up to +125 °C | |||||
| WCAP-CSGP MLCCs 50 V(DC), 100 pF, ±5% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance100 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0603 | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | Length1.6 mm | Height0.8 mm | – | – | Operating Temperature -55 °C up to +125 °C | |||||
| WCAP-CSGP MLCCs 50 V(DC), 220 pF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance220 pF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | – | Dissipation Factor2.5 % | 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 | |||||
| WCAP-CSGP MLCCs 50 V(DC), 6.8 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance6.8 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | – | Dissipation Factor2.5 % | 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 | |||||
| WCAP-CSGP MLCCs 16 V(DC), 10 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance10 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size1210 | – | Dissipation Factor5 % | Insulation Resistance0.05 GΩ | Ceramic TypeX5R Class II | Width2.5 mm | Pad Dimension0.75 mm | Packaging7" Tape & Reel | – | – | – | Length3.2 mm | Height2 mm | – | – | Operating Temperature -55 °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 | |||
 | WR-PHD Pin Header, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | PackagingBag | Pins6 | TypeStraight | MountTHT | Length6 mm | – | Rated Current2 A | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |