Analog Devices LTC7806 | Demoboard DC2951A

Description

Demonstration circuit 2951A is a boost regulator featuring the LTC7806. The DC2951A operates from a 6V to 36V input voltage range and generates 24V, 10A output from a 12V input. When VIN ≥ 24V, VOUT follows VIN. Also, the LTC7806 has precision voltage reference, which can generate an output voltage with 2% tolerance over the full operating conditions. The 350kHz switching frequency operation results in small and efficient circuit. The converter achieves over 95% efficiency with 10A load. The demonstration circuit can be easily modified to regulate different output voltages.The DC2951A provides a high performance cost-effective solution for generating output voltages up to 36V from inputs as low as 5V.The LTC7806 data sheet gives a complete description of this part, its operation and application information and must be read in conjunction with the demo manual.

Features

• 2-Phase Operation Reduces Required Input and Output -Capacitance and Power Supply Induced Noise
• Synchronous Operation for Highest Efficiency and Reduced -Heat Dissipation
• Wide Input Voltage Range: 4.5V to 40V, Operates Down to 1V -After Start-Up
• Output Voltage Up to 40V
• Low Operating Quiescent Current: 18μA
• PassThru™ Operation: 100% Duty Cycle Capability for -Synchronous MOSFET
• RSENSE or Inductor DCR Current Sensing
• Spread Spectrum Operation
• Programmable Fixed Frequency (100kHz to 3MHz)
• Phase-Lockable Frequency (100kHz to 3MHz)
• Selectable Continuous, Pulse-Skipping, or Low Ripple Burst -Mode® Operation at Light Loads
• Input Current Monitor Output
• Internal LDO Powers Gate Drive from VBIAS or EXTVCC
• Low Shutdown IQ: 1.5μA
• Side Wettable 28-Lead 4mm × 5mm QFN Package
• AEC-Q100 Automotive Qualification in Process

Typical applications

• Communications
• Audio and RF Power Amplifiers, Industrial
• Medical
• Automotive and Transportation

More information

• Datasheet
• IC product information