LT8210-1
RECOMMENDED FOR NEW DESIGNS100V VIN and VOUT Synchronous 4-Switch Multiphase Buck-Boost DC/DC Controller
- Part Models
- 4
- 1ku List Price
- Starting From $9.04
Overview
- Built-In Multiphase Current Sharing
- 18μA Pass-Thru Mode IQ with 99.9% Efficiency
- Pass-Thru or Fixed Output CCM, DCM Operation
- Programmable Non-Switching Pass-Thru Window
- VIN Range: 2.8V to 100V (4.5V for Start-Up)
- VOUT Range: 1V to 100V
- Reverse Input Protection to -40V
- ±2% Output Voltage Accuracy (–40°C to 125°C)
- Programmable Current Limit
- 10V Quad N-Channel MOSFET Gate Drivers
- ±20% Cycle-by-Cycle Inductor Current Limit
- No Top MOSFET Refresh Noise in Buck or Boost
- Fixed/Phase-Lockable Frequency: 80kHz to 400kHz
- Spread-Spectrum Frequency Modulation for Low EMI
- Power Good Output Voltage/Overcurrent Monitor
- Available in a 40-Lead (6mm x 6mm) QFN Package
- AEC-Q100 Qualified for Automotive Applications
The LT®8210-1 is a 4-switch synchronous buck-boost DC/DC controller that can operate in pass-thru mode, forced continuous conduction, or pulse-skipping mode. Pass-Thru is a feature that passes the input directly to the output when the input is within a user programmable window. Pass-Thru mode eliminates switching losses and EMI while maximizing efficiency. For input voltages above or below the pass-thru window, the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively. The LT8210-1 is pin compatible with the LT8210. The IMON pin on the LT8210-1 has an ISHARE function, which allows for masterless current sharing.
Multiple LT8210-1 can be connected in parallel for higher output current and reduced voltage ripple. A masterless closed loop current sharing loop balances the current per phase and allows phase shedding. Optional reverse input protection down to -40V can be implemented with the addition of a single N-channel MOSFET. The LT8210-1 includes a precision current sense amplifier that can accurately monitor and limit output or input average current.
APPLICATIONS
- Industrial, Telecom,
- Avionics Systems
- Automotive
- Qualification in Progress
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 |
|---|---|---|---|
| LT8210AUJ-1#PBF | 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP) | ||
| LT8210AUJ-1#TRPBF | 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP) | ||
| LT8210AUJM-1#WPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT8210AUJM-1#WTRPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT8210
- LT8210-1
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LT8210
- LT8210-1
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
100V VIN and VOUT Synchronous 4-Switch Multiphase Buck-Boost DC/DC Controller
Resources
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