Low Power, Low Dropout,RF-Linear Regulators
SGM2019 SGM2019.pdf

No.10973

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

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 BP pin 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 logiccontrolled shutdown mode, foldback current limit and thermal shutdown protection.

APPLICATION CIRCUIT
PIN CONFIGUTION
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