ADP1755

07722-001 Data Sheet FEATURES Maximum output current: 1.2 A Input voltage range: 1.6 V to 3.6 V Low shutdown current: <2 µA Very low dropout voltage: 105 mV at 1.2 A load Initial accuracy: ±1% Accuracy over line, load, and temperature: ±2% 7 fixed output voltage options with soft start 0.75 V to 2.5 V (ADP1754) Adjustable output voltage option with soft start 0.75 V to 3.3 V (ADP1755) High PSRR 65 dB at 1 kHz 65 dB at 10 kHz 54 dB at 100 kHz 23 μV rms at 0.75 V output Stable with small 4.7 µF ceramic output capacitor Excellent load and line transient response Current-limit and thermal overload protection Power-good indicator Logic-controlled enable Reverse current protection APPLICATIONS Server computers Memory components Telecommunications equipment Network equipment DSP/FPGA/microprocessor supplies Instrumentation equipment/data acquisition systems GENERAL DESCRIPTION The ADP1754/ADP1755 are low dropout (LDO) CMOS linear regulators that operate from 1.6 V to 3.6 V and provide up to 1.2 A of output current. These low VIN/VOUT LDOs are ideal for regulation of nanometer FPGA geometries operating from 2.5 V down to 1.8 V I/O rails, and for powering core voltages down to 0.75 V. Using an advanced proprietary architecture, the ADP1754/ ADP1755 provide high power supply rejection ratio (PSRR) and low noise, and achieve excellent line and load transient response with only a small 4.7 µF ceramic output capacitor. The ADP1754 is available in seven fixed output voltage options. The A...