MAX1798EUP

The MAX1798 series system power supplies are designed specifically for CDMA cellular/PCS handsets.The MAX1798EUP belongs to MAX1798 series.

Features of the MAX1798EUP are:(1)one 300ma low-noise ldo;(2)four 150ma low-noise ldos;(3)45vrms noise from 10hz to 100khz;(4)>60db crosstalk isolation below 10khz;(5)>60db psrr below 10khz;(6)125mv (max) dropout (out1 at 200ma);(7)100mv (max) dropout (out25 at 100ma);(8)programmable output voltages 1.8v to 3.3v in 32 steps;(9)140ms (min) reset timer;(10)spi- or i2c-compatible serial interface;(11)push-on/push-off control logic;(12)two 150ma general-purpose open-drain outputs;(13)overcurrent and thermal protection (all ldos);(14)1a shutdown current;(15)20-pin thermally enhanced tssop package.

The absolute maximum ratings of the MAX1798EUP can be summarized as:(1):the parameter is OFF, DR1, DR2 to GND,the rating is -0.3 to +6,the unit is V;(2):the parameter is IN1, IN2/3, IN4/5, DIN (SDA) to GND,the rating is -0.3 to +6,the unit is V;(3):the parameter is SCLK (SCK), BP, ON to GND,the rating is -0.3 to +6,the unit is V;(4):the parameter is RSO, ONO to GND,the rating is -0.3 to (VOUT1+0.3),the unit is V;(5):the parameter is PGND to GND,the rating is ±0.3,the unit is V;(6):the parameter is OUT1, CS (AS) to GND,the rating is -0.3V to (VIN1 + 0.3V),the unit is V;(7):the parameter is OUT2, OUT3 to GND,the rating is -0.3V to (VIN2/3 + 0.3V),the unit is mA;(8):the parameter is OUT4, OUT5 to GND,the rating is -0.3V to (VIN4/5 + 0.3V),the unit is mA;(9):the parameter is continuous sink current DR1, DR2,the rating is 100,the unit is mARMS;(10):the parameter is continuous sink current RSO,the rating is 25,the unit is mA;(11):the parameter is continuous power dissipation (TA = +70) 20-Pin TSSOP (derate 26mW/ above +70,the rating is 2.1,the unit is W;(12):the parameter is operating temperature range,the rating is -40 to +85,the unit is ;(13):the parameter is storage temperature range,the rating is -65 to +150,the unit is ;(14):the parameter is junction temperature,the rating is +150,the unit is ;(14):the parameter is lead temperature (soldering,10s),the rating is +300,the unit is .