ANALOG DEVICES ADP122ACPZ-1.8-R7 LDO Voltage Regulator, Fixed, 2.3 to 5.5V in, 1.8V / 0.3A Out, LFCSP-UD-EP-6, -40 to 125 °C

ADP122ACPZ-1.8-R7 is a low quiescent current, low dropout linear regulator. It is designed to operate from an input voltage between 2.3V and 5.5V and to provide up to 300mA of output current. The low 85mV dropout voltage at a 300mA load improves efficiency and allows operation over a wide input voltage range. The low 170?A of quiescent current at full load makes the ADP122 ideal for battery-operated portable equipment. It is specifically designed for stable operation with tiny 1µF ceramic input and output capacitors to meet the requirements of high-performance, space-constrained applications. It has an internal soft start that gives a constant start-up time of 350µs. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. Applications include digital camera and audio devices, portable and battery-powered equipment, automatic meter reading (AMR) meters, GPS and location management units, medical instrumentation, point-of-sale equipment.

• Input voltage supply range from 2.3V to 5.5V, logic controlled enable
• Excellent load/line transient response, optimized for small 1?F ceramic capacitors
• Current limit and thermal overload protection, 300mA maximum output current
• Operating supply current is 45µA typical at (IOUT = 0µA)
• Shutdown current is 0.1µA typical at (EN = GND), 1.8V output voltage
• Fixed output voltage accuracy is +1% maximum at (IOUT = 10mA)
• Dropout voltage is 3mV typical at (IOUT = 10mA, VOUT > 2.3V)
• Output noise is 25µV rms typical at (10Hz to 100KHz, VIN = 5.5V, VOUT = 1.2V)
• Power supple rejection ratio is 60dB typical at (10KHz, VOUT = 3.3V)
• Operating junction temperature range from -40°C to +125°C, 6-lead LFCSP-UD package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party