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GENERAL DESCRIPTION

The SG2002/A series low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 300mA. They are the perfect choice for low voltage, low power applications. An ultra low ground current (110?A at 300mA output) makes this part attractive for battery operated power systems. The SG2002/A series also offer ultra low dropout voltage (210mV at 300mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SG2002/A series’ ultra low output noise (30?VRMS). An external noise bypass capacitor connected to the device’s BP pin can further reduce the noise level.

FEATURES

- Low Output Noise: 30?VRMS typ(10Hz to 100KHz)

- Ultra-Low Dropout Voltage: 210mV at 300mA output

- Low 77?A No-Load Supply Current

- Low 110?A Operating Supply Current at 300mA Output

- Thermal-Overload Protection

- Output Current Limit

- Preset Output Voltages (±1.6% Accuracy)

- 10nA Logic-Controlled Shutdown

- Available in Multiple Output Voltage Versions

Fixed Outputs of 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V,3.3V, and 5.0V

Adjustable Output from 1.5V to 5.0V

APPLICATIONS

Cellular Telephones

Cordless Telephones

PHS Telephones

PCMCIA Cards

Modems

MP3 Player

Hand-Held Instruments

Palmtop Computers

Electronic Planners

Portable/Battery-Powered Equipment