ANALOG DEVICES ADM7171ACPZ-4.2-R7 LDO Voltage Regulator, Fixed, 2.3 to 6.5V in, 4.2V / 1A Out, LFCSP-EP-8, -40 to 125 °C

ADM7171ACPZ-4.2-R7 is a CMOS, low dropout linear regulator (LDO) that operates from 2.3V to 6.5V and provides up to 1A of output current. This high output current LDO is ideal for regulating high-performance analogue and mixed-signal circuits operating from 6V down to 1.2V rails. Using an advanced proprietary architecture, the device provides high power supply rejection and low noise, achieving excellent line and load transient response with just a small 4.7?F ceramic output capacitor. Load transient response is typically 1.5?s for a 1mA to 500mA load step. Applications include regulation for noise-sensitive components such as ADC and DAC circuits, precision amplifiers, PLLs/VCOs, clocking ICs, communications and infrastructure, medical and healthcare, industrial, and instrumentation.

• Input voltage range from 2.3V to 6.5V, precision enable, 4.2V output voltage
• Stable with small 4.7?F ceramic output capacitor, adjustable soft start
• Load current is 1A maximum at (TA = 25°C)
• Operating supply current is 0.7mA typical at (ILOAD = 0µA, TA = 25°C)
• Shutdown current is 0.25?A typical at (EN = GND, VIN = 5V, TA = 25°C)
• Fixed output voltage accuracy is +1% maximum at (ILOAD = 10mA, TJ = 25°C)
• Dropout voltage is 42mV typical at (ILOAD = 500mA, VOUT = 3V, TA = 25°C)
• Output noise is 6?V rms typical at (10Hz to 100KHz, TA = 25°C)
• Power supply rejection ratio is 60dB typical at (100KHz, VIN = 4V, VOUT = 3V, ILOAD = 1A, CSS = 0nF)
• Operating junction temperature range from -40°C to +125°C, 8-lead LFCSP 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