LTM4650MPY#PBF - Dual 25A/50A DC/DC μModule | Analog Devices
MPN: LTM4650MPY#PBF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $45.32 | $45.32 |
| 10 | $41.87 | $418.70 |
| 100 | $38.5 | $3,850.00 |
| 500 | $35.2 | $17,600.00 |
| 1,000 | $32.1 | $32,100.00 |
Drop-in alternatives for LTM4650MPY#PBF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LTM4650IY#PBF
✅ Drop-In✓ In Stock
$50 / Unit
View Datasheet →LTM4650EV#PBF
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LTM4630AEY#PBF
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LTM4620AEY#PBF
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LTM4644EY#PBF
✅ Drop-In✓ In Stock
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View Datasheet →LTM4650MPY#PBF Maximum Ratings & Electrical Characteristics
| Output Type | Dual |
| Output Voltage Range | 0.6 V to 1.8 V (each output) |
| Output Current | 25 A per output, 50 A single output |
| Input Voltage Range | 4.5 V to 15 V |
| Switching Frequency | [DATA_NEEDED: switching frequency] |
| Efficiency | [DATA_NEEDED: efficiency at typical conditions] |
| Operating Temperature Range | -55°C to +125°C |
| Package | LGA (16mm x 16mm) |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Isolation | Non-Isolated |
| Control Features | TRACK/SS pin, remote sense |
| Protection | Overcurrent, overtemperature |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
LTM4650MPY#PBF Pin Configuration
| Pin 1 | VIN — Input voltage |
| Pin 2 | VOUT1 — Output 1 |
| Pin 3 | VOUT2 — Output 2 |
| Pin 4 | GND — Ground |
| Pin 5 | TRACK/SS — Tracking and soft-start |
| Pin 6 | RUN — Enable |
| Pin 7 | SENSE1+ — Remote sense positive for output 1 |
| Pin 8 | SENSE1- — Remote sense negative for output 1 |
| Pin 9 | SENSE2+ — Remote sense positive for output 2 |
| Pin 10 | SENSE2- — Remote sense negative for output 2 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LTM4650MPY#PBF is suitable for 6 applications: FPGA Power Supplies, ASIC Power Supplies, Telecom and Networking Equipment, Industrial Systems, Military and Aerospace Electronics, Data Center and Cloud Computing.
FPGA Power Supplies
The LTM4650MPY#PBF provides dual 25A outputs with adjustable 0.6V to 1.8V, ideal for powering FPGA core and I/O rails. Its high efficiency and low ripple ensure stable operation for high-performance FPGAs. The TRACK/SS pin enables proper sequencing for multi-rail requirements, and remote sense improves regulation at the load point.
Recommended
ASIC Power Supplies
For ASICs requiring high current at low voltages, the LTM4650MPY#PBF delivers up to 50A single output. Its wide input range (4.5V to 15V) accommodates various bus voltages. The integrated inductors and MOSFETs reduce design complexity, and the military temperature range ensures reliability in demanding environments.
Recommended
Telecom and Networking Equipment
In telecom systems, the LTM4650MPY#PBF powers line cards and switches with high efficiency. Its dual outputs can supply separate rails for logic and I/O. The module's compact LGA package saves board space, and its thermal performance supports continuous operation in confined enclosures.
Recommended
Industrial Systems
The LTM4650MPY#PBF is suitable for industrial automation and control systems requiring robust power delivery. Its -55°C to +125°C temperature range exceeds industrial requirements, providing margin. The module's protection features (overcurrent, overtemperature) enhance system reliability in harsh factory environments.
Recommended
Military and Aerospace Electronics
With its military temperature range, the LTM4650MPY#PBF is designed for defense and aerospace applications. It can power radar, avionics, and communication systems where extreme temperatures are common. The high output current supports demanding loads, and the integrated design reduces size and weight.
Recommended
Data Center and Cloud Computing
In data centers, the LTM4650MPY#PBF powers high-performance processors and memory. Its high efficiency reduces cooling requirements, and the dual outputs can supply separate voltage domains. The module's remote sense ensures accurate voltage at the load, critical for high-current applications.
Recommended
Recommended Products Summary
Engineering reference data for LTM4650MPY#PBF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTM4650IY#PBF | LTM4650EV#PBF | LTM4630AEY#PBF |
|---|---|---|---|---|
| Package | LGA (16mm x 16mm) | LGA (16mm x 16mm) | LGA (16mm x 16mm) | LGA (16mm x 16mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Current (per output) | 25A | 25A | 25A | 18A |
| Output Voltage Range | 0.6V to 1.8V | 0.6V to 1.8V | 0.6V to 1.8V | 0.6V to 1.8V |
| Input Voltage Range | 4.5V to 15V | 4.5V to 15V | 4.5V to 15V | 4.5V to 15V |
| Operating Temperature Range | -55°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Number of Outputs | 2 | 2 | 2 | 2 |
| TRACK/SS Pin | Yes | Yes | Yes | Yes |
Key Differentiators
- Military temperature range (-55°C to +125°C) (vs LTM4650IY#PBF)
- Higher output current (25A per output) compared to LTM4630AEY#PBF (vs LTM4630AEY#PBF)
- Integrated inductors and power stage (vs Discrete buck converter solutions)
Design Notes
At 50A output, the LTM4650MPY#PBF dissipates significant power. Use a multi-layer PCB with thermal vias under the exposed pad to conduct heat to inner and bottom layers. Ensure adequate copper area for heat spreading. The military temperature rating allows operation up to +125°C case temperature, but derating may be required at high ambient temperatures.
Place input and output capacitors close to the module pins to minimize parasitic inductance. Use low-ESR ceramic capacitors for high-frequency decoupling. The datasheet recommends a specific capacitor configuration for stability; follow the typical application circuit. For remote sense, route sense lines as a differential pair to avoid noise pickup.
Do not exceed the absolute maximum input voltage of 16V. Ensure the TRACK/SS pin is properly connected for soft-start; leaving it floating may cause uncontrolled startup. When paralleling outputs for 50A, ensure proper current sharing by following the datasheet's parallel configuration. Verify output voltage accuracy with 1% resistors.
Compliance Information
RoHS compliant per '#PBF' suffix. Military grade, not AEC-Q100 qualified.
