Manufacturer Part Number
LT3840EFE#PBF
Manufacturer
Analog Devices
Introduction
The LT3840EFE#PBF is a DC DC switching controller designed for power management applications, specifically to drive step-down (buck) converters.
Product Features and Performance
Capable of driving step-down converters in positive or negative output configurations
Supports a wide input voltage range from 2.5V up to 60V
Adjustable switching frequency from 50kHz to 1MHz
High maximum duty cycle of 99%
Incorporates synchronous rectification for improved efficiency
Features clock synchronization
Enhanced control features including enable, frequency control, power good, soft start, and tracking
Product Advantages
Flexible power management suitable for a variety of applications
High efficiency and reliability with synchronous rectifier and clock sync
Wide input voltage range caters to diverse power sources
High frequency adjustability allows for optimization of performance
Soft start function reduces inrush current impact
Key Technical Parameters
Output Type: Transistor Driver
Number of Outputs: 1
Output Phases: 1
Voltage Supply (Vcc/Vdd): 2.5V ~ 60V
Frequency Switching: 50kHz ~ 1MHz
Duty Cycle (Max): 99%
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Operates reliably in a wide temperature range
Built-in safety controls including power good and soft start
Compatibility
Compatible with a variety of external components for diverse applications
Mounting Type: Surface Mount
Application Areas
Ideal for a wide range of electronics requiring efficient power management such as computers, communication equipment, and industrial machinery
Product Lifecycle
Currently active product status
No indication of nearing discontinuation; replacements or upgrades would be under the same base product number LT3840
Several Key Reasons to Choose This Product
Highly versatile with both positive or negative output configuration capability
Supports extremely wide range of input voltage and adjustable switching frequencies for tailored performance
Integrated synchronous rectifier and clock synchronization feature enhances overall efficiency
Robust control features providing extensive operational control and safety
Dependable operation across a wide temperature spectrum suitable for harsh environments
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