MPQ2024A
DESCRIPTION
The MPQ2024A is a low-dropout (LDO) regulator that contains a boost pre-regulator operating at either 400k Hz or 2.2MHz with I2C interface and one-time programmable (OTP) memory. The device provides phantom power to low-noise amplifiers (LNAs) for active antennas in automotive systems from a cold crank through load dump (3V to 40V) input voltage (VIN) conditions.
It delivers up to 300m A of load current, with excellent load and line regulation. During normal operation, when the battery is healthy, the pre-boost is pletely turned off to reduce the quiescent current (IQ), which makes the device suitable for always-on power supplies.
The MPQ2024A also integrates a MOSFET in the pre-boost to further reduce the external ponent count and EMI. Both the LDO and boost outputs are configurable through I2C interface. The pre-boost output voltage (VOUTBOOST) is adjustable from 6.5V to 15.9V. The LDO output voltage (VOUT) is adjustable from 1V to 13.6V. The LDO output is protected during...
