LTC3609EWKG#PBF: High-Efficiency Step-Down Switching Regulator IC by Analog Devices

The LTC3609EWKG#PBF from Analog Devices Inc. is a premium step-down (buck) switching regulator IC engineered for high-performance power conversion. With its 4V to 32V wide input range, adjustable 0.6V 32V output, and 6A continuous current output, this IC is perfect for demanding applications in industrial, automotive, and consumer electronics.

Product Overview

Manufacturer & Availability

Designed by Analog Devices Inc. a global leader in analog and mixed-signal ICs the LTC3609EWKG#PBF is actively in production, ensuring long-term supply chain stability for your projects.

Key Specifications

• Topology: Buck (Step-Down)
• Output Type: Adjustable Positive (0.6V 32V)
• Input Voltage: 4V 32V
• Output Current: Up to 6A
• Efficiency: Up to 95% (typ.)
• Switching Frequency: Programmable up to 1MHz
• Package: 52-QFN-Multipad (7x8mm, Exposed Pad)
• Operating Temperature: -40 C to +125 C

Advanced Features

Precision Voltage Regulation

The IC integrates a low-dropout (LDO) post-regulator for ultra-precise output voltage control ( 1% accuracy), critical for sensitive loads like FPGAs or processors.

Thermal Management

Its 52-QFN package with exposed pad enables superior heat dissipation, supporting continuous 6A operation even in high-ambient environments.

Protection Circuits

• Overcurrent protection (OCP)
• Thermal shutdown
• Input undervoltage lockout (UVLO)

Applications

The LTC3609EWKG#PBF excels in:

• Industrial: PLCs, motor controllers
• Automotive: Infotainment, ADAS systems
• Telecom: Base station power modules
• Consumer: High-end audio/video equipment

Design Advantages

• Reduced BOM Cost: Integrated MOSFETs eliminate external switches
• Layout-Friendly: Programmable frequency minimizes EMI
• Fast Transient Response: <500ns recovery for dynamic loads

Why Choose LTC3609EWKG#PBF?

Analog Devices' Silent Switcher architecture ensures low-noise operation, while the current-mode control provides excellent line/load regulation. Engineers trust this IC for its:

• Industry-leading efficiency (95% at 12V 3.3V conversion)
• Compact solution size (<100mm total footprint)
• Compliance with automotive AEC-Q100 standards

Ready to integrate the LTC3609EWKG#PBF into your design? Visit our authorized distributor portal for datasheets, evaluation boards, and volume pricing. For technical support, contact Analog Devices' power management experts today.