LTM4644EY#PBF
LTM4644EY#PBFLTM4644EY#PBF
LTM4644EY#PBF
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Manufacturer Part # : LTM4644EY#PBF
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Package/Case: 77-Lead BGA (15mm x 9mm x 5.01mm)
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Brand: Analog Devices
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Product Categories : DC DC Converters
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Series : LTM4644
Quality Assurance
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All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.






Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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LTM4644EY#PBF DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Interested Parts
LTM4644EY#PBF Details
The LTM4644EY#PBF is a high-performance DC/DC converter module from Analog Devices, designed for efficient power conversion in various applications. This device features a quad output step-down µModule regulator with 4A per output, making it suitable for powering multiple loads simultaneously.
Pinout
- VIN+: Input Voltage Positive Pin
- VIN-: Input Voltage Negative Pin
- GND: Ground Pin
- OUT1-4: Quad Output Pins (0.6V to 5.5V)
(Tip: For detailed pinout information, please refer to the corresponding datasheet.)
Key Features
- Quad Output Step-Down µModule Regulator: Provides 4A per output for powering multiple loads simultaneously.
- Wide Input Voltage Range: Operates from 4V to 14V input voltage, with an external bias option available.
- Low Dropout (LDO) Regulator: Offers high efficiency and low noise operation.
- Compact Package: Available in a small 16-pin QFN package for space-constrained applications.
Applications
The LTM4644EY#PBF is suitable for various applications that require efficient power conversion, including:
- Server and Data Center Power Supplies: Provides reliable and efficient power to multiple loads.
- Industrial Automation Systems: Offers high-performance power conversion for industrial control systems.
- Aerospace and Defense Systems: Meets the requirements for high-reliability and low-power consumption in aerospace and defense applications.
Where to Use
The LTM4644EY#PBF is suitable for use in various environments, including:
- Industrial Settings: Suitable for industrial automation systems and other applications that require high-performance power conversion.
- Aerospace and Defense Environments: Meets the requirements for high-reliability and low-power consumption in aerospace and defense applications.
How to Use
To use the LTM4644EY#PBF, follow these steps:
- Connect VIN+ and VIN- pins to your input voltage source.
- Connect OUT1-4 pins to your load devices.
- Ensure proper grounding by connecting the GND pin to a suitable ground reference.
(Tip: For detailed usage instructions, refer to the datasheet.)
Application Circuit
The application circuit diagram for the LTM4644EY#PBF illustrates how to connect the converter module to your power supply and load devices. It includes connections for input voltage, output loads, and grounding.
(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)
Equivalents
- LTM4644EY#PBF: A similar DC/DC converter module from Analog Devices offering comparable features and performance.
- TPS65240DRCR: An alternative DC/DC converter module from Texas Instruments with equivalent functionality.
Complementary
The LTM4644EY#PBF can be complemented by other Analog Devices products, such as the LT3042, which offers a high-performance low-dropout regulator for powering multiple loads simultaneously.
(Tip: When selecting complementary products, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.)
Frequently Asked Questions
Q: What is the maximum output current of the LTM4644EY#PBF?
A: The LTM4644EY#PBF has a maximum output current of 4A per output.
Q: Can the LTM4644EY#PBF be used in aerospace and defense applications?
A: Yes, the LTM4644EY#PBF meets the requirements for high-reliability and low-power consumption in aerospace and defense applications.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Pbfree Code | No | Rohs Code | No |
Part Life Cycle Code | Active | Pin Count ! | 77 |
Reach Compliance Code | compliant | Additional Feature ! | ALSO 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 | 14 V |
Input Voltage-Min | 4 V | Input Voltage-Nom | 12 V |
JESD-30 Code | R-PBGA-B77 | JESD-609 Code | e1 |
Length | 15 mm | Moisture Sensitivity Level | 3 |
Number of Functions | 4 | Number of Terminals | 77 |
Operating Temperature-Max | 125 °C | Operating Temperature-Min | -40 °C |
Output Voltage-Nom | 1.5 V | Package Body Material | PLASTIC/EPOXY |
Package Code | BGA | Package Shape | RECTANGULAR |
Package Style | GRID ARRAY | Peak Reflow Temperature (Cel) | 245 |
Seated Height-Max | 5.21 mm | Surface Mount ! | YES |
Switcher Configuration | BUCK | Switching Frequency-Max | 1300 kHz |
Temperature Grade ! | AUTOMOTIVE | Terminal Finish | Tin/Silver/Copper (Sn96.5Ag3.0Cu0.5) |
Terminal Form ! | BALL | Terminal Pitch ! | 1.27 mm |
Terminal Position | BOTTOM | Time@Peak Reflow Temperature-Max (s) | 30 |
Width | 9 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
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Price details
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