Manufacturer Part Number
LTC3861EUHE#TRPBF
Manufacturer
Analog Devices
Introduction
High performance PolyPhase step-down DC/DC switching controller
Product Features and Performance
Synchronous step-down DC/DC controller
Dual output channels
PolyPhase operation for reduced input/output ripple
3V to 5.5V supply voltage range
250kHz to 3MHz adjustable switching frequency
Up to 91.5% duty cycle
No synchronous rectifier
No clock synchronization
Supports functions like current limit, enable, frequency and phase control
Outputs a PWM signal
Power good and soft start features for smooth operation
Tracking capability for sequencing
Product Advantages
Optimized for high-efficiency power conversion
Designed for low noise applications
Flexible PolyPhase configuration for scalability
Thermal management with -40°C to +125°C operating temperature range
Reliability at wide temperature ranges
Key Technical Parameters
Number of Outputs: 2
Output Phases: 2
Voltage - Supply (Vcc/Vdd): 3V ~ 5.5V
Frequency - Switching: 250kHz ~ 3MHz
Duty Cycle (Max): 91.5%
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Exposed pad package for enhanced thermal dissipation
Over-temperature protection
Compatibility
Compatible with a variety of external MOSFETs and drivers
Application Areas
High density power supplies
Distributed Power Systems
Datacom and Telecom applications
Enterprise servers and Storage systems
Product Lifecycle
Product status is active
Not reported as nearing discontinuation
Replacements or upgrades may be available
Several Key Reasons to Choose This Product
Highly efficient power control for multi-phase systems
Adaptive operation suitable for a wide range of applications
Customizable switching frequency for design flexibility
Enhanced thermal performance suitable for tight power supplies
Robust design for a variety of industrial temperatures
Supports complex systems with multiple supply voltages