LTC7818
Description
The LTC®7818 is a high performance triple output (buck/ buck/boost) synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Its constant-frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz.
Key Features
- Dual Buck Plus Single Boost Synchronous Controllers
- Low Operating IQ:
- 14μA (14V to 3.3V, Channel 1 On)
- Outputs Remain in Regulation Through Cold Crank Down to 1V Input Supply Voltage
- Wide Bias Input Voltage Range: 4.5V to 40V
- Buck and Boost Output Voltages Up to 40V
- Spread Spectrum Operation
- RSENSE or DCR Current Sensing
- Programmable Fixed Frequency (100kHz to 3MHz)
- PassThru™/100% Duty Cycle Capable for Synchronous Boost MOSFET
