max889max8892.7~5.5v-2.5v~vin200ma 0.5mhz1mhz2mhztsMAX889: 301Kb 8P: Hh-Frequency, Regulated, 200mA, Inverting Charge Pump: MAX8890: 233Kb 12P: Integrated Cellular RF-Section Power-Management IC: MAX8891: 325Kb