Manufacturer Part Number
LTC3854IMSE#TRPBF
Manufacturer
Analog Devices
Introduction
The LTC3854IMSE#TRPBF is a high performance step-down switching regulator controller that operates over a wide input voltage range.
Product Features and Performance
Wide 4.5V to 38V operating input range
Stable with low ESR ceramic output capacitors
High efficiency synchronous operation
Configurable switch frequency up to 400kHz
98% maximum duty cycle for low dropout operation
Internal soft-start limits inrush current during startup
Fixed frequency current mode operation for excellent line and load transient response
Product Advantages
Versatile power solution for a variety of applications
Ability to drive high power external MOSFETs
Low dropout operation extends battery life in portable systems
Predictable performance with programmable soft start
Key Technical Parameters
Output Type: Transistor Driver
Function: Step-Down
Output Configuration: Positive
Topology: Buck
Number of Outputs: 1
Output Phases: 1
Voltage Supply (Vcc/Vdd): 4.5V ~ 38V
Frequency Switching: 400kHz
Duty Cycle (Max): 98%
Synchronous Rectifier: Yes
Quality and Safety Features
Overvoltage protection circuitry helps prevent damage to the system
Built-in thermal shutdown function for additional safety
Compatibility
Compatible with a wide variety of external MOSFETs
Can be used in designs with ceramic and bulk capacitors
Application Areas
Distributed Power Systems
Telecommunications Equipment
Computing Devices
Automotive Power Systems
Industrial Power Supplies
Product Lifecycle
Status: Active
Not near discontinuation
Replacements or upgrades might be available depending on system requirements
Key Reasons to Choose This Product
Efficient power management for systems that require a wide input voltage range
Minimizes power losses due to its high efficiency and synchronous operation
Flexible design options due to its compatibility with various types of capacitors and MOSFETs
Suitable for robust environments with its wide temperature range operation
Low risk for obsolescence thanks to its active product status