DESCRIPTION
The MAS9128A is voltage regulator IC with three 2.85V LDO regulators providing voltage regulation for the handset terminal. The output voltages of the three regulators can be modified through a mask option. Two enable/disable pins control the state of the regulators. In order to save power the device goes into sleep mode when all regulators are disabled. An internal thermal protection circuit prevents the device from overheating. The maximum output current is limited internally.

FEATURES
• 2.85V regulators at 100mA, 70mA and 50mA
• Output accuracy <±3%
• Fast dynamic response
• Low output noise
• Low supply current: 150µA per regulator
• SO8 package

APPLICATIONS
• Mobile phones
• Cordless phones
• Battery powered systems