LTC7806

RECOMMENDED FOR NEW DESIGNS

40V, Low I_Q, 3MHz, 2-Phase Synchronous Boost Controller

Data Sheet (Rev. B) Product Selection Table

Part Models: 6
1ku List Price: Starting From $3.85

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Part Details

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
R_SENSE 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 V_BIAS or EXTV_CC
Low Shutdown I_Q: 1.5μA
Side Wettable 28-Lead 4mm × 5mm QFN Package
AEC-Q100 Qualified for Automotive Applications

Part Models: 6
1ku List Price: Starting From $3.85

Documentation

Data Sheet 1

LTC7806: 40V, Low I_Q, 3MHz, 2-Phase Synchronous Boost Controller Data Sheet (Rev.B) 08/30/2024

User Guide 1

DC2951A - Demo Manual (Rev.0) 08/24/2021

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC7806IUFDM#WPBF	28-Lead QFN (4mm x 5mm, Plastic Side Wettable)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC7806IUFDM#WTRPBF	28-Lead QFN (4mm x 5mm, Plastic Side Wettable)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC7806JUFDM#WPBF	28-Lead QFN (4mm x 5mm, Plastic Side Wettable)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC7806JUFDM#WTRPBF	28-Lead QFN (4mm x 5mm, Plastic Side Wettable)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC7806RUFDM#PBF	28-Lead QFN (4mm x 5mm, Plastic Side Wettable)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC7806RUFDM#TRPBF	28-Lead QFN (4mm x 5mm, Plastic Side Wettable)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC7806 - Step-Up (Boost) Regulators

Models for the following parts are available in LTspice:

LTC7806

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC7806 | 6V to 36V Input, 24V, 10A Output, Synchronous Boost Regulator with Input Current Monitor

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Product Details

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 V_IN ≥ 24V, V_OUT follows V_IN. 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.