GENERAL DEscriptION

The SGM2019 is a low power, low noise and low dropout voltage RF linear regulator. It is capable of supplying 300mA output current with typical dropout voltage of only 270mV. The operating input voltage range is from 2.5V to 5.5V. The fixed output voltage range is from 1.2V to 3.3V and the adjustable output voltage range is from 1.2V to 5.0V.

Other features include logic-controlled shutdown mode, output current limit and thermal shutdown protection.

The SGM2019 is available in Green SOT-23-5 and SC70-5 packages. It operates over an operating temperature range of -40℃ to +85℃.

FEATURES

• Operating Input Voltage Range: 2.5V to 5.5V

• Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 2.6V, 2.8V, 2.85V, 3.0V, 3.3V

• Adjustable Output Voltage Range: 1.2V to 5.0V

• Output Voltage Accuracy: ±2.5% at +25℃

• Low Output Noise: 30μVRMS (TYP)

• Low Dropout Voltage: 270mV (TYP) at 300mA

• High PSRR: 74dB (TYP) at 1kHz

• Shutdown Current: 0.01μA (TYP)

• Thermal Shutdown Protection

• Output Current Limit

• -40℃ to +85℃ Operating Temperature Range

• Available in Green SC70-5 and SOT-23-5 Packages

APPLICATIONS

Modems

MP3 Players

Cellular Telephones

PCMCIA Cards

Palmtop Computers

Portable Electronics