Dc-Dc Converter, 0.6V-5.5V, 4A; Power Supply Applications:-; Dc/Dc Converter Type:Bga-77, Micro Module; Output Power Max:-; Output Voltage Min:600Mv; Output Voltage Max:5.5V; Output Current Max:4A; Input Voltage Dc Min:4V Rohs Compliant: Yes |Analog Devices LTM4644EY#PBF

LTM4644EY#PBF – 4-Channel 4A µModule® DC-DC Converter – Analog Devices

Optimize your power delivery with the Analog Devices LTM4644EY#PBF, a high-efficiency 4-output DC-DC µModule® converter. Engineered for space-constrained designs, this integrated solution simplifies power management while delivering up to 4A per channel. PCX ensures authentic Analog Devices components with same-day shipping and dedicated technical support.

Key Features

• Quad Outputs: Four independently adjustable 0.6V–5.5V channels
• High Current: 4A continuous output per channel
• Wide Input Range: 4V–14V operational voltage
• Advanced Protection: Integrated OCP (Over-Current), OTP (Over-Temperature), OVP (Over-Voltage)
• Compact Design: 15.0mm × 9.0mm × 5.0mm BGA package
• Industrial Reliability: -40°C to +125°C operating temperature

Technical Specifications

This non-isolated Point-of-Load (PoL) module integrates power switches, inductors, and control circuitry in a surface-mount 77-BGA package. With four synchronous buck regulators, it achieves >90% efficiency across loads. The module supports frequency synchronization and requires minimal external components, reducing design complexity. RoHS-compliant construction ensures environmental safety.

Typical Applications

• Server/Data center blade systems
• FPGA and ASIC multi-voltage rail power
• Telecommunications infrastructure
• Industrial automation controllers
• Medical imaging equipment

About Analog Devices

Analog Devices Inc. (ADI) is a global leader in high-performance semiconductor solutions, renowned for innovation in signal processing and power management technologies. With over 50 years of industry expertise, ADI’s components are critical enablers for next-generation electronic systems across automotive, industrial, and communications markets.

ADI’s µModule® product line exemplifies system-in-package excellence, combining verified design methodologies with rigorous testing protocols. Their commitment to quality and reliability makes them a trusted partner for mission-critical applications worldwide.

About DC-DC Converters

DC-DC converters are essential for regulating voltage levels in electronic circuits, efficiently stepping down (buck) or stepping up (boost) input voltages to match component requirements. Non-isolated converters like the LTM4644 minimize power loss while maintaining electrical continuity between input and output.

Modern µModule® converters integrate discrete components into single packages, dramatically reducing PCB footprint and design time. They provide stable power delivery for sensitive digital loads like processors and memory, making them indispensable in power-dense applications requiring thermal resilience and low noise operation.

Packaging Options

Available in manufacturer trays for automated assembly. Contact PCX for reeled packaging customization.

FAQs

Q: What is the typical efficiency of this DC-DC converter?
A: Efficiency exceeds 90% across most load conditions due to synchronous rectification and optimized switching design.

Q: Can outputs be paralleled for higher current?
A: Yes, multiple channels can be paralleled to deliver up to 16A combined current with proper thermal management.

Q: Does it require external compensation components?
A: No, the LTM4644 is fully compensated internally, simplifying board layout.

Q: Is this suitable for automotive applications?
A: While industrial-grade (-40°C to +125°C), automotive qualification requires specific testing. Consult datasheet for derating guidelines.

Q: How does the OTP (Over-Temperature Protection) function?
A: The module automatically shuts down at ~150°C (typical) and restarts after cooling by 20°C.

Q: What documentation supports design integration?
A: Access the full datasheet on PCXCo.com for schematics, layout guidelines, and performance curves.

Product images are representational. Refer to datasheet for exact specifications.

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Simplify your power design with this industry-leading µModule® converter. PCX guarantees genuine Analog Devices inventory with 24-hour shipping and expert support. Submit your BOM for volume pricing!