TPS7A4515

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS7A4501, TPS7A4515, TPS7A4518, TPS7A4525, TPS7A4533 SLVS720F – JUNE 2008 – REVISED NOVEMBER 2015 TPS7A45xx Low-Noise Fast-Transient-Response 1.5-A Low-Dropout Voltage Regulators 1 Features 1 Optimized for Fast Transient Response Output Current: 1.5 A High Output Voltage Accuracy: 1% at 25°C Dropout Voltage: 300 mV Low Noise: 35 μVRMS (10 Hz to 100 kHz) High Ripple Rejection: 68 dB at 1 kHz 1-mA Quiescent Current No Protection Diodes Needed Controlled Quiescent Current in Dropout Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V Adjustable Output from 1.21 V to 20 V (TPS7A4501 Only) Less Than 1-μA Quiescent Current in Shutdown Stable With 10-μF Ceramic Output Capacitor Reverse-Battery Protection Reverse Current Protection 2 Applications Industrial Wireless Infrastructure Radio-Frequency Systems 3 Description The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 μA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. In addition to fast transient response, the TPS7A45xx regulators have very-low output noise, which makes them ideal for sensitive RF supply applications. Output voltage range is from 1.2...