LTM4622AIY: Advanced Dual-Channel Non-Isolated PoL DC-DC Converter by Analog Devices

The LTM4622AIY from Analog Devices Inc. represents cutting-edge power conversion technology, delivering unparalleled efficiency and reliability in a miniature 6.3mm x 6.3mm package. This comprehensive guide explores why engineers worldwide trust this module for critical power applications.

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In-Depth Technical Specifications

Input Voltage Performance

• Wide Operating Range: 3.6V to 20V input accommodates diverse power sources including 5V/12V bus rails and battery systems
• Transient Tolerance: Withstands 24V surge inputs for 100ms (per MIL-STD-1275E)

Dual-Output Architecture

• Independent Regulation: Two fully adjustable 1.5V-12V outputs with 1.5% voltage accuracy
• Current Sharing: Parallelable for up to 4A combined output with <1% current mismatch
• Switching Frequency: 1MHz fixed frequency operation with 10% synchronization capability

Efficiency Metrics

• Peak 95% efficiency at 12VIN/5VOUT configuration
• Maintains >90% efficiency across 20%-100% load range
• Ultra-low 40 A quiescent current in standby mode

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Advanced Thermal Management

The LTM4622AIY's 25-PowerBBGA package incorporates:

• Copper pillar flip-chip technology for optimal thermal resistance ( JA = 28 C/W)
• Integrated power MOSFETs with <0.5 RDS(ON)
• Thermal shutdown at 150 C with hysteresis

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Design Flexibility Features

Configuration Options

• Precision enable pins with 0.8V threshold
• Programmable soft-start (100 s-5ms)
• Power-good indicators for each channel

Layout Advantages

• 0.1 H internal inductors eliminate external magnetics
• Only 4 external ceramic capacitors required per channel
• 0.25" x 0.25" footprint saves 50% board space versus discrete solutions

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Industry-Leading Reliability

Rigorously tested for:

• 1000-hour HTOL (125 C at full load)
• 1000-cycle thermal shock (-55 C to 125 C)
• 50g mechanical shock and 20g vibration compliance

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Application-Specific Design Guides

FPGA Power Systems

Implementation example for Xilinx Zynq-7000:

• Channel 1: 1.0V @ 2A (VCCINT)
• Channel 2: 1.8V @ 1.5A (VCCAUX)
• 12V input with 92% system efficiency

Industrial IoT Solutions

24V automation system case study:

• Input surge protection up to 36V
• 5V/3.3V dual outputs for sensor/processor power
• -40 C to 85 C operation without derating

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Competitive Advantage Analysis

Feature	LTM4622AIY	Competitor A	Competitor B
Efficiency @ 2A	95%	91%	89%
Footprint	40mm	64mm	100mm
Output Channels	2	1	1
Protections	OCP/OTP/OVP	OCP only	None

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Purchasing & Support Resources

Available through authorized distributors:

• Evaluation board (DC2272A) with GUI software
• LTpowerCAD design tool support
• Reference designs for common applications

For volume pricing and samples, contact Analog Devices' technical sales team today to discuss how the LTM4622AIY can optimize your power architecture.