LTM4642EY#PBF Analog Devices Integrated Circuit (BGA) In Stock
Analog Devices LTM4642EY#PBF is a high-density µModule step-down DC/DC regulator delivering up to 4 A output with adjustable 0.6 V to 5.5 V output from a 2.375 V to 20 V input using current-mode PWM control. It integrates inductor, MOSFETs, and controller in a compact 11.25 mm × 9 mm × 4.92 mm BGA-56 package. Available from stock worldwide.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- LTM4642EY#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $19.4850(MOQ 1)
- Temp Range
- ?°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTM4642EY#PBF?
- Integrated µModule design combines inductor, power MOSFETs, and controller in a single 11.25 mm × 9 mm BGA-56 package for minimal PCB area
- Wide input voltage range of 2.375 V to 20 V covers USB, 5 V, 12 V, and Li-ion rail inputs in a single design
- Adjustable output voltage from 0.6 V to 5.5 V set by a single external resistor for universal core/rail compatibility
- Current-mode PWM control ensures fast transient response and inherent cycle-by-cycle current limiting
- Up to 4 A continuous output current with built-in thermal protection for high-reliability power rails
What is LTM4642EY#PBF used for?
The LTM4642EY#PBF is designed for space-constrained power supply designs in communications equipment, FPGAs, DSPs, and multi-rail server boards where component height and board area are at a premium. Its wide input range and µModule integration make it ideal for generating low-voltage core rails from 12 V intermediate bus architectures in data-center blades and industrial computing modules. It is also used in test-and-measurement instruments and defense electronics where a fully integrated regulator with minimal external passives reduces time-to-market.
What are the specifications of LTM4642EY#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1961 |
| YTEOL | 10 |
| Additional Feature | OUTPUT VOLTAGE RANGE FROM 0.6 V TO 5.5 V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 2.375V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PBGA-B56 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Output Current-Max | 8A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Technology | HYBRID |
| Temperature Grade | OTHER |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| 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 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTM4642EY#PBF datasheet?
LTM4642EY#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTM4642EY#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output current and voltage range does the LTM4642EY#PBF support for powering FPGA core rails?
The LTM4642EY#PBF delivers up to 4 A continuous output current with an adjustable output voltage from 0.6 V to 5.5 V, set by a single external resistor. This range covers common FPGA core voltages of 0.85 V, 1.0 V, and 1.2 V, as well as I/O rails at 1.8 V and 2.5 V, making it a versatile single-component solution for multi-rail FPGA power designs from a 12 V intermediate bus.
What input voltage range is supported by LTM4642EY#PBF, and does it work directly from a 12 V bus?
The device accepts input voltages from 2.375 V to 20 V, fully supporting 12 V intermediate bus architectures without a pre-regulator. It also operates from a 5 V rail, USB 5 V, or a single Li-ion cell (nominally 3.6 V to 4.2 V), giving designers flexibility to use the same µModule across multiple board variants with different input power sources.
How compact is the LTM4642EY#PBF package, and how does it compare to a discrete converter solution?
The BGA-56 µModule measures 11.25 mm × 9 mm × 4.92 mm and integrates the power inductor, input/output capacitors (with minimal external caps), MOSFETs, and PWM controller. A comparable discrete solution typically requires 5–8 components spread over 200–400 mm² of PCB area; the LTM4642EY#PBF occupies roughly 100 mm² total including the small external passives, saving significant board space in high-density rack-mount or embedded computing designs.
What control architecture does LTM4642EY#PBF use, and how does it handle load transients?
The LTM4642EY#PBF uses a peak current-mode PWM control loop operating at a fixed switching frequency, which provides inherent cycle-by-cycle current limiting and fast load-transient response. The current-mode architecture reduces output voltage deviation during sudden load steps—for example a 2 A load step causes a transient dip typically under 50 mV at the output—keeping FPGA core voltages within their specified tolerance windows during high-speed logic switching events.
Is LTM4642EY#PBF suitable for defense or harsh-environment designs, and what is its operating temperature range?
The LTM4642EY#PBF (E-grade) is rated for an extended temperature range of -40°C to +125°C junction temperature, which covers most industrial and harsh-environment operating conditions. The BGA package's thermal resistance is managed through the PCB ground plane, and the integrated overtemperature shutdown protects the device during sustained high-ambient or high-load scenarios in enclosed systems such as avionics racks and ruggedized computing modules.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $21.1088 | $21.11 |
| 25+ | $20.2969 | $507.42 |
| 50+ | $19.4850 | $974.25 |
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