GENERAL DESCRIPTION

The SG2001/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 150mA. They are the perfect choice for low voltage, low power applications. An ultra low ground current (100µA at 150mA output) makes these parts attractive for battery operated power systems.

The SG2001/A series also offer ultra low dropout voltage (105mV at 150mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SG2001/A series’ ultra low output noise (30µVRMS). An external noise bypass capacitor connected to the device’s BP pin can further reduce the noise level.

FEATURES

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

- Ultra-Low Dropout Voltage:

105mV at 150mA output

- Low 77µA No-Load Supply Current

- Low 100µA Operating Supply Current

at 150mA 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 1.2V, 1.5V, 1.8V, 2.5V, 2.8V,

2.85V, 3.0V, 3.3V, 3.6V, 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