max8893. MAX889, MAX168x and other have a VERY LIMITED CURRENT, because of their limited power dissipation to 471mW at 70C. This allows for around 40mA with MAX1680.Integrated Cellular RF-Section Power-Management IC, MAX8890 Datasheet, MAX8890 circuit, MAX8890 data sheet : MAXIM, , Datasheet, Datasheet search site for Electronic