MAX1798 Datasheet (Maxim) - CDMA Cellular/PCS System Power Supplies

MAX1798, CDMA Cellular/PCS System Power Supplies

The MAX1798/MAX1798A/MAX1799/MAX1799A system power supplies are designed specifically for CDMA cellular/PCS handsets.

Each device contains five lowdropout linear regulators (LDOs), a 140ms (min) reset timer, a serial interface, push-on/push-off control logic, and two general-purpose open-drain outpu

MAX1798 Features

* o One 300mA Low-Noise LDO o Four 150mA Low-Noise LDOs o 45µVRMS Noise from 10Hz to 100kHz o >60dB Crosstalk Isolation Below 10kHz o >60dB PSRR Below 10kHz o 125mV (max) Dropout (OUT1 at 200mA) o 100mV (max) Dropout (OUT2

* 5 at 100mA) o Programmable Output Voltages 1.8V to 3.3V in 32 Steps o 1