Manufacturer Part Number
LTC3890IUH#PBF
Manufacturer
Analog Devices
Introduction
High-performance Power Management Integrated Circuit (PMIC) for DC-DC conversion
Product Features and Performance
PolyPhase® series
Step-down switching controller
Dual outputs for multi-phase operation
Supports wide input voltage range from 4V to 60V
Adjustable switching frequency between 105kHz and 835kHz
High duty cycle up to 99% for low dropout operations
Integrated synchronous rectifier for improved efficiency
Soft start to prevent inrush current during startup
Power Good signal for output voltage monitoring
Frequency Control for optimized performance
Current Limit for over-current protection
Phase Control to manage multi-phase operation
Operates at an extended temperature range of -40°C to 125°C
Product Advantages
High efficiency due to synchronous rectification
Reliable performance with the integration of multiple control features
Supports a wide range of input voltages, suitable for various applications
Two output phases for balanced power distribution and reduced ripple
Key Technical Parameters
Output Type: Transistor Driver
Function: Step-Down
Output Configuration: Positive
Topology: Buck
Number of Outputs: 2
Output Phases: 2
Voltage - Supply (Vcc/Vdd): 4V ~ 60V
Frequency - Switching: 105kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max): 99%
Synchronous Rectifier: Yes
Quality and Safety Features
Over-current protection
Thermal shutdown at junction temperature (TJ) of 125°C
Compatibility
Surface Mount compatible
32-WFQFN Exposed Pad package
Standard QFN footprint for ease of integration
Application Areas
High-density power distribution systems
Networking and telecommunications
Industrial power supplies
Automotive electronics
Datacom infrastructure
Product Lifecycle
Status: Active
Not nearing discontinuation
Replacements or upgrades should be available if needed
Several Key Reasons to Choose This Product
Robust power management solution for demanding applications
Highly efficient and precise DC-DC conversion
Versatile input voltage and dual-phase output cater to a broad range of devices
Comprehensive protection and control features ensure system stability
Extended operating temperature range suitable for industrial and automotive environments
Supported by a reputable manufacturer with a proven track record in power management solutions
LTC3890HGN-1#PBFLinear Technology