LTC7891 Overview
The LTC7891 is a high performance, step-down, dc-to-dc switching regulator controller that drives all N-channel synchronous gallium nitride (GaN) field effect transistor (FET) power stages from input voltages up to 100 V. The LTC7891 solves many of the challenges traditionally faced when using GaN FETs. The LTC7891 simplifies the application design while requiring no protection diodes and no other additional...
LTC7891 Key Features
- GaN drive technology fully optimized for GaN FETs
- Wide VIN range: 4 V to 100 V
- Wide output voltage range: 0.8 V ≤ VOUT ≤ 60 V
- No catch, clamp, or bootstrap diodes needed
- Internal smart bootstrap switches prevent overcharging of high
- Internally optimized, smart near zero dead times or resistor
- Split output gate drivers for adjustable turn on and turn off driver
- Accurate adjustable driver voltage and UVLO
- Low operating IQ: 5 μA (48 VIN to 5 VOUT)
- Programmable frequency (100 kHz to 3 MHz)