ADM7160ACPZN1.8-R7

The ADM7160 is an ultralow noise, low dropout linear regulator that operates from 2.2 V to 5.5 V and provides up to 200 mA of output current. The low 150 mV dropout voltage at 200 mA load improves efficiency and allows operation over a wide input voltage range. Using an innovative circuit topology, the ADM7160 achieves ultralow noise performance without the need for a bypass capacitor, making the device ideal for noise-sensitive analog front-end and RF applications. The ADM7160 also achieves ultralow noise performance without compromising PSRR or transient line and load performance. Current-limit and thermal overload protection circuits prevent damage under adverse conditions. The ADM7160 also includes an internal pull-down resistor on the EN input.

Applications

• ADC/DAC power supplies
• RF, VCO, and PLL power supplies
• Post dc-to-dc regulation

Key features

• PSRR performance of 54 dB at 100 kHz
• Ultralow noise independent of VOUT 3 μν rms, 0.1 Hz to 10 Hz; 9.5 μν rms, 0.1 Hz to 100 kHz; 70 μν rms, 70 Hz to 100 kHz; 77 μν rms, 10 Hz to 1 MHz
• Low dropout voltage: 150 mV at 200 mA load
• Maximum output current: 200 mA
• Input voltage range: 2.2 V to 5.5 V
• Low quiescent and shutdown current
• Initial accuracy: ±1%
• Accuracy over line, load, and temperature: -2.5%/+1.5%
• 5-lead TSOT package and 6-lead LFCSP package