LP5907MFX-1.2 is a linear regulator capable of supplying 250mA 1.2V output current in a 5-pin SOT23 package, designed to meet the requirements of RF and analog circuits, providing low noise, high PSRR, low quiescent current, and low line or load transient response figures. It provides class-leading noise performance without the need for noise bypass capacitors and the ability to place remote output capacitors.

Main Specifications:

• Input voltage range: 2.2 V to 5.5 V

• Output voltage range: 1.2 V to 4.5 V

• Output current: 250 mA

• Low output voltage noise: <10 uVRMs

• PSRR: 82 dB at 1 kHz

• Output Voltage Tolerance: +2%

• VeryLowIQ (enabled): 12 uA

• Startup time: 80 us

• Low dropout voltage: 120 mV typical

Feature:

• Stable with 1-uF ceramic input and output capacitors

• No noise bypass capacitor required

• Remote output capacitor placement

• Thermal overload and short circuit protection

• -40°C to +125°C operating junction temperature range

Application:

• cell phone

• PDA cell phone

• WLAN equipment