ADM7170ACPZ-2.5-R7

ADM7170ACPZ-2.5-R7 is a CMOS, low dropout linear regulator (LDO) that operates from 2.3V to 6.5V and provides up to 500mA of output current. This high output current LDO is ideal for regulation of 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 and achieves 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 500mA 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 about 1ms. Application includes regulation to noise sensitive applications: ADC and DAC circuits, precision amplifiers, PLLs/VCOs, and clocking ICs, communications and infrastructure, medical and healthcare, industrial and instrumentation.

• Input voltage range from 2.3V to 6.5V, precision enable
• Stable with small 4.7µF ceramic output capacitor, adjustable soft start
• Load current is 500mA 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 +0.75% 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)
• 2.5V output voltage, soft start current is 1µA typ at (VIN = 5V, TA = 25°C)
• Operating junction temperature range from -40°C to +125°C, 8-lead LFCSP

附註

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