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Analog Devices LT8210 | Demoboard EVAL-LT8210-1-AZ
100V VIN and VOUT Synchronous 4-Switch Multiphase Buck-Boost DC/DC Controller
Overview
| Topology | Buck Converter |
| Input voltage | 26-80 V |
| Output 1 | 56 V / 20 A |
Description
The evaluation circuit EVAL-LT8210-1-AZ is a high voltage, high efficiency synchronous 4-switch multiphase buck-boost DC/DC converter with pass-thru mode. This circuit provides an output of 36V to 56V and can supply a maximum load current of 20A with an input voltage range of 26V to 80V. The evaluation circuit features four LT8210-1 controllers that operate in multiphase configuration, and the leaderless closed loop current sharing loop balances the current per phase.
Features
- 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
Typical applications
- Industrial and automation
- Automotive and transportation