Manufacturer Part Number
LTC3851AEUD#TRPBF
Manufacturer
Analog Devices
Introduction
High-performance step-down switching regulator controller for power management applications
Product Features and Performance
Wide supply voltage range: 4V to 38V
Adjustable switching frequency: 235kHz to 750kHz
High duty cycle up to 99% for low dropout operation
Synchronous rectification support for improved efficiency
Soft start feature to mitigate inrush current
Current limit, frequency control, and tracking for robust control
Product Advantages
High efficiency due to synchronous rectification
Operational over a wide range of supply voltages
Customizable switching frequency to optimize performance
Thermal performance enhanced by 16-WFQFN Exposed Pad
Durable over extended temperatures from -40°C to 125°C
Key Technical Parameters
Output Type: Transistor Driver
Function: Step-Down
Output Configuration: Positive
Topology: Buck
Number of Outputs: 1
Voltage - Supply (Vcc/Vdd): 4V to 38V
Frequency - Switching: 235kHz to 750kHz
Synchronous Rectifier: Yes
Quality and Safety Features
Operating temperature range of -40°C to 125°C ensures reliability in harsh conditions
Exposed pad for improved thermal dissipation
Compatibility
Surface mount compatible
16-QFN (3x3) package suitable for compact PCB layouts
Application Areas
Telecommunications
Networking equipment
Portable devices
Industrial power systems
Product Lifecycle
Status: Active
Not reported as nearing discontinuation
Alternatives or replacements may be available, but specific models not mentioned
Several Key Reasons to Choose This Product
Versatile power input range suitable for various applications
Customizable frequency for design flexibility
High efficiency reduces thermal load and improves system longevity
Adaptable to different load requirements with programmable features
Reliable performance in extreme temperature environments
Offered by a reputable manufacturer, Analog Devices, known for quality products
LTC3851AEMSE-1Linear Technology
LTC3851AEGN#TRPBFAnalog Devices Inc.IC REG CTRLR BUCK 16SSOP