Manufacturer Part Number
LTC3728LEUH#PBF
Manufacturer
Analog Devices
Introduction
High-performance, dual-phase synchronous step-down switching regulator controller
Product Features and Performance
Dual 2-Phase operation
Wide input voltage range: 4.5V to 28V
High frequency switching: 260kHz to 550kHz (adjustable)
Maximum duty cycle: 99.4%
Integrated synchronous rectifier
Support for selectable soft-start time to reduce inrush current
Power Good signal output for sequencing & monitoring
Output overvoltage protection
Product Advantages
Precise regulation and fast transient response
High efficiency through synchronous rectification
Ease of use with integrated features such as soft-start and power good
Good thermal performance with exposed pad QFN package
Key Technical Parameters
Number of outputs: 2
Output phases: 2
Output type: Transistor Driver
Function: Step-Down
Output configuration: Positive
Topology: Buck
Voltage - Supply (Vcc/Vdd): 4.5V to 28V
Duty Cycle (Max): 99.4%
Synchronous Rectifier: Yes
Quality and Safety Features
Overvoltage protection
Operation temperature range: -40°C to 85°C
High reliability and longevity
Compatibility
Surface mount compatible
32-WFQFN Exposed Pad packaging
Compliance with power management design standards
Application Areas
Telecom and networking systems
Computing and data storage
Industrial power supplies
Medical and healthcare equipment
Product Lifecycle
Product status: Active
No current indication of discontinuation, replacements, or upgrades
Several Key Reasons to Choose This Product
Flexible power management for a wide range of input voltages
Capability for high power density designs with dual-phase control
Suitable for demanding applications due to high-speed operation and robustness
Optimized for efficient multi-output power conversion systems
Ease of PCB design with QFN package
Long-term reliability and support from Analog Devices