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AAT3215IGV-2.7-T1 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT3215IGV-2.7-T1 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 18 page  SmartSwitch™ 3215.2006.05.1.6 1 General Description The AAT3215 MicroPower™ low dropout (LDO) linear regulator is ideally suited for portable appli- cations where low noise, extended battery life, and small size are critical. The AAT3215 has been specifically designed for very low output noise per- formance, fast transient response, and high power supply rejection ratio (PSRR), making it ideal for powering sensitive RF circuits. Other features include low quiescent current, typi- cally 95µA, and low dropout voltage which is typi- cally less than 140mV at full output current. The device is output short-circuit protected and has a thermal shutdown circuit for additional protection under extreme conditions. The AAT3215 also features a low-power shutdown mode for extended battery life. A reference bypass pin has been provided to improve PSRR perform- ance and output noise by connecting an external capacitor from the AAT3215's reference output to ground. The AAT3215 is available in a Pb-free, space-saving 5-pin SOT23 or 8-pin SC70JW package in ten fac- tory-programmed voltages: 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.3V, or 3.6V. Features • Low Dropout: 140mV at 150mA • Guaranteed 150mA Output • High Accuracy ±1.5% • 95µA Quiescent Current • High Power Supply Ripple Rejection — 70dB at 1kHz — 50dB at 10kHz • Very Low Self Noise: 45µVrms • Fast Line and Load Transient Response • Short-Circuit Protection • Over-Temperature Protection • Uses Low Equivalent Series Resistance (ESR) Ceramic Capacitors • Noise Reduction Bypass Capacitor • Shutdown Mode for Longer Battery Life • Low Temperature Coefficient • Ten Factory-Programmed Output Voltages • SOT23 5-Pin or SC70JW 8-Pin Package Applications • Bluetooth™ Headsets • Cellular Phones • Digital Cameras • Notebook Computers • Personal Portable Electronics • Portable Communication Devices AAT3215 150mA CMOS High Performance LDO Typical Application AAT3215 EN IN OUT BYP GND ON/OFF 1 μF 10nF 2.2 μF VIN GND GND VOUT PowerLinear™ |
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