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LTC7891 Datasheet Synchronous Step-down Controller

Manufacturer: Analog Devices

Overview: Data Sheet LTC7891 100 V, Low IQ, Synchronous Step-Down Controller for GaN.

General Description

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 external components compared to a silicon metaloxide semiconductor field effect transistor (MOSFET) solution.

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- side driver supplies.
  • Internally optimized, smart near zero dead times or resistor adjustable dead times.
  • Split output gate drivers for adjustable turn on and turn off driver strengths.
  • Accurate adjustable driver voltage.

LTC7891 Distributor & Price

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