LTC7841
RECOMMENDED FOR NEW DESIGNSDual Phase Synchronous Boost Controller with PMBus Interface
- Part Models
- 4
- 1ku List Price
- Starting From $5.89
Overview
- Wide VIN Range: 4.5V to 60V
- 1% Total Output Voltage Accuracy Over Temperature at VIN = 12V
- PMBus Compliant Serial Interface:
- Programmable VOUT: Up to 60V with 0.2% Resolution
- Read Back of Average and Peak Temperature, Current, and Voltage (25Hz Refresh Rate)
- Fault Status
- Phase-Lockable Frequency: 75kHz to 850kHz
- Less than 1ms Power-Up Time
- Power Good Output Voltage Monitor
- Internal LDO Powers Gate Driver from VBIAS or EXTVCC
- Low Shutdown Current: IQ < 10μA
- Available in a Thermally-Enhanced 5mm × 6mm QFN
The LTC®7841 is a high performance dual phase single output synchronous boost converter controller that drives two N-channel power MOSFET stages out-of-phase. Multiphase operation reduces input and output capacitor requirements and allows the use of smaller inductors than the single-phase equivalent. Synchronous rectification increases efficiency, reduces power loss and eases thermal requirements, enabling high power boost applications. The output voltage can be adjusted up to 60V with 0.2% resolution via a PMBus-compliant serial interface. The serial interface can also be used to read back fault status, input/output current, input/output voltage and temperature. System configuration and monitoring is supported by the LTpowerPlay® development system.
Applications
- Medical, Industrial
Documentation
Data Sheet 1
User Guide 1
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 |
|---|---|---|---|
| LTC7841EUHE#PBF | 36-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC7841EUHE#TRPBF | 36-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC7841IUHE#PBF | 36-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC7841IUHE#TRPBF | 36-Lead QFN (5mm x 6mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive) |
||
| LTC7841EUHE#PBF | PRODUCTION | |
| LTC7841EUHE#TRPBF | PRODUCTION | |
| LTC7841IUHE#PBF | PRODUCTION | |
| LTC7841IUHE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC7841
Linduino 2
LTpowerCAD 1
Design tools for the following parts are available in LTpowerCAD:
- LTC7841
LTpowerPlay®
LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
Evaluation Kits
LTC7841 | 60V Dual-Phase Single Output Synchronous Boost Controller with PMBus