High Performance LDO www.ams.com/AS1369 AS1369 – High Performance LDO - Small size - Outstanding noise performance - Excellent power supply rejection ratio - High accuracy - Low power consumption We provide innovative analog solutions to the most challenging applications in sensor and sensor interfaces, power management, and wireless. General Description The AS1369 is an ultra-compact high-performance low-dropout 200mA voltage regulator designed for use with very-low ESR output capacitors. The device can deliver superior performance in all specifications critical to battery-powered designs, and is perfectly suited for mobile phones, PDAs, MP3 players, and other battery powered devices. The AS1369 is fully operational with small input and output capacitor of only 0.47μF offering PSRR of 72dB typical and a noise level of 30μVRMS. Typical quiescent current is around 25μA while in shutdown the AS1369 requires less than 0.1μA quiescent current. Regulation performance is excellent even under low dropout conditions, when the power transistor has to operate in linear mode. The AS1369 offers excellent low-noise performance requiring no external bypass capacitance. Multiple output voltage options between 1.2V and 5.0V in 100mV steps are available and the minimum input voltage is as low as 2.0V (depending on the output voltage version), so the component can be used with the new and emerging battery technologies. The AS1369 is available in a 4-bump WL-CSP package. Applications Features - - Low dropout voltage: typ. 40mV @ 100mA - 200mA high maximum load current - 2.0 to 5.5V input voltage - High accuracy: ±2% over temperature - Thermal and over current protection - 25µA quiescent current - High PSRR: 72dB @ 1kHz - No noise bypass capacitor required - Low noise: 30µVRMS - Enable pin - Package: 4-bump WL-CSP 0.5mm pitch Space sensitive applications Mobile and cordless phones PDAs and handheld computers Bluetooth portable devices Personal audio devices Portable and battery powered equipment better Accuracy 30% Dropout Voltage 50% Quiescent Current 28% Ground Pin Current 45% Output Noise Voltage 14% Shutdown Supply Current 50% AS1346 Block Diagram V IN C IN AS1369 V OUT V REF On/Off Control EN _ + C OUT Thermal & Over Current Protection GND A2 EN B2 V IN A1 GND B1 V OUT (WLP; Top Through View) www.ams.com [email protected] © 06/2012 by ams Subject to change without notice Headquarters ams AG Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria Phone +43 3136 500-0 · Fax +43 3136 525-01 Sales Offices Worldwide [email protected] [email protected] [email protected]