LTM4638EY#PBF Analog Devices Integrated Circuit (BGA) In Stock
Analog Devices LTM4638EY#PBF is a µModule DC/DC step-down power regulator with 3.1 V to 20 V input range, current-mode PWM control, and BGA package, designed for high-density, high-efficiency point-of-load power conversion in space-constrained applications.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 49
- Lifecycle
- ACTIVE
- Datasheet
- LTM4638EY#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $18.2130(MOQ 1)
- 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 LTM4638EY#PBF?
- µModule step-down regulator with 3.1 V to 20 V input range in a compact BGA package for high-density designs
- Current-mode pulse-width modulation (PWM) control for fast transient response and precise output regulation
- Integrated power stage including inductors, MOSFETs, and compensation in a single BGA module to minimize BOM
- Supports output voltage adjustment for flexible multi-rail power supply designs in embedded and communications systems
What is LTM4638EY#PBF used for?
The LTM4638EY#PBF is ideal for point-of-load (POL) power conversion in dense PCB environments such as FPGA boards, network switches, and telecom line cards where a 12 V bus must efficiently supply lower-voltage rails. Its integrated µModule approach eliminates the need for external inductors and compensation networks, significantly reducing design time for engineers working on medical instruments, industrial computers, and data acquisition systems. The wide 3.1 V to 20 V input range allows it to operate directly from standard 5 V or 12 V bus rails in distributed power architectures.
What are the specifications of LTM4638EY#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1574 |
| Date Of Intro | 2018-12-10 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 3.1V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PBGA-B49 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.6V |
| Output Voltage-Nom | 1.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA49,7X7,32 |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, FINE PITCH |
| Peak Reflow Temperature (Cel) | 245 |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 600kHz |
| Technology | HYBRID |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | BALL |
| Terminal Pitch | 0.8mm |
| 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 |
Where can I find the LTM4638EY#PBF datasheet?
LTM4638EY#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTM4638EY#PBF?
Compatible alternatives and drop-in replacements for LTM4638EY#PBF:
suggested
suggested
suggested
Frequently Asked Questions
What is the input voltage range of the LTM4638EY#PBF, and which power bus architectures does it support?
The LTM4638EY#PBF accepts an input voltage range of 3.1 V to 20 V, with a nominal operating voltage of 12 V. This range makes it directly compatible with standard 5 V and 12 V distributed power buses used in FPGA boards, network equipment, and industrial control systems, eliminating intermediate bus converters in many designs.
How does the current-mode PWM control in LTM4638EY#PBF improve power supply performance?
Current-mode PWM control in the LTM4638EY#PBF provides cycle-by-cycle current limiting and inherently better transient response compared to voltage-mode regulators. This control technique allows the regulator to react quickly to sudden load changes—common in FPGAs and DSPs—while maintaining output regulation to within tight voltage tolerances, supporting load currents typically up to 8 A per channel.
What design advantages does the BGA µModule package offer for board-level integration?
The BGA µModule package integrates the inductor, MOSFETs, control IC, and compensation components into a single 9 mm × 15 mm × 4.92 mm module. This reduces PCB area by up to 75% compared to discrete implementations, simplifies layout, and shortens design cycles, particularly valuable for space-constrained applications such as embedded computing boards and test instrumentation.
In which application domains is the LTM4638EY#PBF typically deployed over discrete regulators?
The LTM4638EY#PBF is preferred in high-density applications such as FPGA power rails, ASIC core supplies, network switch line cards, and medical imaging equipment where board area is limited to a few square centimeters per supply rail. Its integrated design enables engineers to achieve 20 V input to sub-1 V output conversion with minimal external components, meeting tight EMI and thermal budgets in demanding environments.
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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 |
|---|---|---|
| 1+ | $18.2130 | $18.21 |
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