SGM2019是一款低功耗、低噪声、低压差射频线性稳压器。它能够提供300mA的输出电流，典型的压降电压只有270mV。工作输入电压范围为2.5V至5.5V。固定输出电压范围为1.2V至3.3V，可调输出电压范围为1.2V至5.0V。 其他功能包括逻辑控制关机模式、输出电流限制和热关机保护。 SGM2019适用于需要低噪音和低电源的应用，如MP3播放器、掌上电脑等。提供固定或可调输出电压版本。 SGM2019有绿色SOT-23-5和SC70-5封装。其工作温度范围为-40℃至+85℃。
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 suitable for application which needs low noise and low power supply, such as MP3 players, palmtop computers, etc. Fixed or adjustable output voltage versions are provided.
The SGM2019 is available in Green SOT-23-5 and SC70-5 packages. It operates over an operating temperature range of -40℃ to +85℃.
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
Modems
MP3 Players
Cellular Telephones
PCMCIA Cards
Palmtop Computers
Portable Electronics
工作时间 早9:00 - 晚18:00 周六日休息
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