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AAT3218IJS-2.3-T1 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 18 page AAT3218 150mA MicroPower™ High Performance LDO 3218.2004.02.1.0 1 General Description The AAT3218 MicroPower™ Low Dropout Linear Regulator is ideally suited for portable applications where very fast transient response, extended battery life and small size are critical. The AAT3218 has been specifically designed for high speed turn on and turn off performance, fast transient response, good power supply ripple rejection (PSRR) and is reason- ably low noise, making it ideal for powering sensitive circuits with fast switching requirements. Other features include low quiescent current, typical- ly 70µA, and low dropout voltage which is typically less than 200mV at the maximum output current level of 150mA. The device is output short circuit protect- ed and has a thermal shutdown circuit for additional protection under extreme operating conditions. The AAT3218 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 a small external capacitor from the AAT3218's reference output to ground. The AAT3218 is available in a space saving 5-pin SOT23 or 8-pin SC70JW package in 16 factory programmed voltages of 1.2V, 1.4V, 1.5V, 1.8V, 1.9V, 2.0V, 2.3V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V or 3.5V. Features • Low Dropout - 200mV at 150mA • Guaranteed 150mA Output • High accuracy ±1.5% • 70µA Quiescent Current • Fast line and load transient response • High speed device turn-on and shutdown • High Power Supply Ripple Rejection • Low self noise • Short circuit protection • Over-Temperature protection • Uses Low ESR ceramic capacitors • Output noise reduction bypass capacitor • Shutdown mode for longer battery life • Low temperature coefficient • 16 Factory programmed output voltages • SOT23 5-pin or SC70JW 8-pin package Applications • Cellular Phones • Notebook Computers • Portable Communication Devices • Personal Portable Electronics • Digital Cameras Typical Application AAT3218 EN IN OUT BYP GND ON/OFF 1 µF 10nF 2.2 µF VIN GND GND VOUT PowerLinear™ |
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