LTM4677EY#PBF Analog Devices Integrated Circuit (BGA) In Stock
The LTM4677EY#PBF is a dual 18 A or single 36 A DC/DC µModule regulator from Analog Devices with integrated digital power system management. It accepts a 4.5 V to 16 V input, provides adjustable 0.5 V to 1.8 V output via current-mode PWM control, and is housed in a compact BGA package for high-density power designs.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 144
- Lifecycle
- ACTIVE
- Datasheet
- LTM4677EY#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $53.6000(MOQ 4)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTM4677EY#PBF?
- Dual 18 A or configurable single 36 A output for flexible high-current power rail architecture
- Adjustable output voltage from 0.5 V to 1.8 V covering core voltage rails in FPGAs, ASICs, and processors
- Digital power system management via PMBus for telemetry, fault logging, and margin testing
- Wide 4.5 V to 16 V input range supporting 5 V and 12 V distribution bus designs
- Compact BGA µModule package with integrated inductors, reducing external component count and PCB area
What is LTM4677EY#PBF used for?
The LTM4677EY#PBF is designed for powering FPGA core rails, ASIC VDD supplies, and multi-rail DSP power domains in telecommunications line cards, data center servers, and high-performance computing boards. Its digital PMBus interface enables real-time current and voltage telemetry and fault management through a system controller, making it well-suited for intelligent power delivery architectures. The configurable dual/single output topology allows system designers to optimize board layout for either two independent 18 A rails or a single high-current 36 A supply.
What are the specifications of LTM4677EY#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1920 |
| YTEOL | 10 |
| Additional Feature | OPERATES IN ADJUSTABLE MODE FROM 0.5V TO 1.8V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PBGA-B144 |
| Number of Functions | 1 |
| Output Current-Max | 36A |
| Output Voltage-Max | 1.8V |
| Output Voltage-Min | 0.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA144,12X12,50 |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 800kHz |
| Technology | HYBRID |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | BALL |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 4 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTM4677EY#PBF datasheet?
LTM4677EY#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTM4677EY#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Can the LTM4677EY#PBF power both the core and auxiliary rails of an FPGA from a single 12 V bus?
Yes, the LTM4677EY#PBF accepts a 4.5 V to 16 V input including a standard 12 V distribution bus, and can be configured as dual independent 18 A outputs. This allows a single device to supply both the FPGA core rail (e.g. 0.9 V at 18 A) and an auxiliary DDR termination rail simultaneously, simplifying BOM and layout.
What digital management interface does the LTM4677EY#PBF support, and what parameters can be monitored over it?
The LTM4677EY#PBF implements a PMBus digital interface allowing a host controller to read output voltage, output current, and temperature telemetry in real time. It also supports margin testing commands that adjust output voltage by ±5% or user-defined offsets, and latched fault logging for diagnosing over-current or over-temperature events in production systems.
How does the µModule packaging of the LTM4677EY#PBF reduce design complexity compared to a discrete controller plus MOSFET solution?
The LTM4677EY#PBF integrates the PWM controller, power MOSFETs, gate drivers, and inductors into a single BGA package, reducing external component count to a few input and output capacitors. A discrete solution at 36 A would require separate inductor selection, MOSFET sizing, and gate driver design, typically occupying 3 to 5 times more PCB area and adding weeks of power stage validation work.
What is the adjustable output voltage range, and does the LTM4677EY#PBF support sub-1 V core rails for modern SoCs?
The LTM4677EY#PBF supports an adjustable output voltage range of 0.5 V to 1.8 V, covering sub-1 V core rails required by advanced CMOS SoCs, FPGAs (e.g. 0.72 V, 0.85 V, 0.95 V cores), and DDR4 memory VDDQ rails at 1.2 V. This flexibility eliminates the need for separate fixed-voltage regulators at different supply levels on a multi-rail power tree.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 4+ | $64.2714 | $257.09 |
| 5+ | $62.1290 | $310.64 |
| 6+ | $55.7019 | $334.21 |
| 1000+ | $53.6000 | $53600.00 |
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