供应SGM2019-3.3/1.8/ADJ圣邦微低压差线性稳压器

GENERAL DESCRIPTION

     The SGM2019 series low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input voltage. They are the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The SGM2019 series also offer ultra low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM2019 series’ ultra low output noise (30μVRMS) and high PSRR. An external noise bypass capacitor connected to the device’s BPpin can further reduce the noise level.

The output voltage is preset to voltages in the range of 1.2V to 5.0V. Other features include a 10nA logic controlled shutdown mode, foldback current limit and thermal shutdown protection.

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

FEATURES• Low Output Noise

• Low Dropout Voltage

• Thermal-Overload Protection

• Output Current Limit

• High PSRR (74dB at 1kHz)

• 10nA Logic-Controlled Shutdown

• Available in Multiple Output Voltage Versions

• Fixed Outputs of 1.2V, 1.5V, 1.8V, 2.5V, 2.6V, 2.8V,

   2.85V, 3.0V and 3.3V

• Adjustable Output from 1.2V to 5.0V

• -40℃ to +85℃ Operating Temperature Range

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

APPLICATIONSCellular Telephones

Cordless Telephones

PCMCIA Cards

Modems

MP3 Player

Hand-Held Instruments

Palmtop Computers

Electronic Planners

Portable/Battery-Powered Equipment