ADM7172ACPZ-4.2-R7

ADM7172ACPZ-4.2-R7 is a CMOS, low dropout linear regulator (LDO) that operates from 2.3V to 6.5V and provides up to 2A 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 4.7µF ceramic output capacitor. Load transient response is typically 1.5μs for a 1mA to 1.5A load step. Inrush current can be controlled by adjusting the start-up time via the soft start pin. The typical start-up time with a 1nF soft start capacitor is 1ms. Applications include regulation for noise-sensitive applications such as ADC and DAC circuits, precision amplifiers, PLLs/VCOs, and clocking ICs, as well as communications infrastructure, medical and healthcare, and industrial and instrumentation.

• Input voltage range from 2.3V to 6.5V, precision enable, 4.2V output voltage
• Stable with small 4.7µF ceramic output capacitor, adjustable soft start
• Load current is 2A maximum at (TA = 25°C)
• Operating supply current is 0.7mA typical at (ILOAD = 0µA, TA = 25°C)
• Shutdown current is 0.25µA 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 6µV rms typical at (10Hz to 100KHz, TA = 25°C)
• Power supply rejection ratio is 60dB typical at (100KHz, VIN = 4V, VOUT = 3V, ILOAD = 1.5A)
• Operating junction temperature range from -40°C to +125°C, 8-lead LFCSP package

注释

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