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MAX1798 CDMA Cellular/PCS System Power Supplies

MAX1798 Description

19-1655; Rev 1; 2/01 NUAL KIT MA ATION U L A E V E BL AVAILA CDMA Cellular/PCS System Power Supplies .
The MAX1798/MAX1798A/MAX1799/MAX1799A system power supplies are designed specifically for CDMA cellular/PCS handsets.

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

MAX1798 Applications

* CDMA Cellular/PCS Handsets PDAs, Palmtops, and Handy-Terminals Single-Cell Li+ Systems 2- or 3-Cell NiMH, NiCd, or Alkaline Systems Typical Operating Circuit ONO IN4/5 2.5V TO 5.5V OFF IN2/3 OUT1 IN1 RSO ON RESET TX RX BBA AUDIO OR PLL + VCO VIN1 DR1 DR2 GND PGND VIBRATOR WDOUT VCC IRQ MSM CONTROLL

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CDMA Cellular PCS System Power Supplies Maxim
Maxim MAX1798-like datasheet