LTM4644EY-1#PBF Analog Devices Integrated Circuit (BGA) In Stock
The LTM4644EY-1#PBF is a quad-output, 4 A per channel step-down DC/DC µModule regulator from Analog Devices. It accepts a 4 V to 14 V input and delivers adjustable outputs from 0.6 V to 5.5 V with current-mode PWM control. Ideal for powering multi-rail FPGAs, ASICs, and DSPs in space-constrained designs.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 77
- Lifecycle
- ACTIVE
- Datasheet
- LTM4644EY-1#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $28.4553(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad 4 A output channels configurable as parallel 16 A or series multi-rail supplies
- Wide 4 V to 14 V input range with 0.6 V to 5.5 V adjustable output
- Current-mode PWM control for fast transient response and accurate current sharing
- Compact BGA µModule package integrates inductor, controller, MOSFETs, and passives
Applications
The LTM4644EY-1#PBF is well suited for powering multi-rail FPGA core and I/O supplies in telecommunications and networking line cards. Its configurable output array allows system designers to combine channels for higher current or generate independent voltage rails from a single 12 V bus. It is also used in industrial automation controllers and test-and-measurement equipment where board space is limited.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1900 |
| YTEOL | 8.5 |
| Additional Feature | OPERATES IN ADJUSTABLE MODE FROM 0.6V TO 5.5V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 14V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PBGA-B77 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Output Current-Max | 4A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.6V |
| Output Voltage-Nom | 1.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY |
| Peak Reflow Temperature (Cel) | 245 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1300kHz |
| Technology | HYBRID |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Silver/Copper (Sn96.5Ag3.0Cu0.5) |
| Terminal Form | BALL |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many output channels does the LTM4644EY-1#PBF provide, and what is the maximum current per channel?
The LTM4644EY-1#PBF integrates 4 independent step-down output channels, each rated at 4 A, giving a total of 16 A when all channels are paralleled. Outputs are adjustable from 0.6 V to 5.5 V, making the device flexible for multi-rail FPGA and ASIC power designs.
What input voltage range does the LTM4644EY-1#PBF support, and is it compatible with a standard 12 V bus?
The LTM4644EY-1#PBF operates from a 4 V minimum to 14 V maximum input, so it is fully compatible with the standard 12 V intermediate bus found in servers and networking equipment. The nominal 12 V input is within the rated range, and the device maintains regulation down to 4 V for lower-voltage rail inputs.
Which FPGA families benefit most from using the LTM4644EY-1#PBF as a power solution?
Xilinx UltraScale, Intel Stratix 10, and similar high-density FPGAs that require multiple supply rails at 0.8 V, 1.0 V, 1.8 V, and 3.3 V are prime candidates. The 4-channel architecture with 4 A per rail covers core, auxiliary, and I/O voltage domains from a single 12 V supply without external inductors.
What control topology does the LTM4644EY-1#PBF use, and how does it affect transient response?
The device uses current-mode pulse-width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting and faster transient response than voltage-mode designs. This topology allows output voltage deviations to be corrected within a few hundred nanoseconds, supporting tight tolerance rails for sensitive digital loads at switching frequencies up to 1 MHz.
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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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| 9+ | $29.6120 | $266.51 |
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