The LM2103 is a high-voltage gate driver designed to drive both the high-side and the low-side N-channel FETs in a synchronous buck or a half-bridge configuration. The two outputs are independently controlled with two TTL-compatible input signals, with an exception to prevent cross conduction when INH is high and INL is low at the same time. The device can also work with CMOS type control signals at its inputs as long as the signals meet the turn-on and turn-off threshold specifications of the LM2103. The floating high-side driver is capable of working with a recommended BST voltage up to 105 V. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high-side gate driver. Undervoltage lockout (UVLO) is provided on both the low-side and the high-side power rails.