ADP7105ACPZ-R7, LDO Voltage Regulator, Adjustable, 3.3 V to 20 V in, 1.22 V to 19 V out, 0.5 A out, LFCSP-EP-8

ADP7105 is a CMOS, low dropout (LDO) linear regulator. Using an advanced proprietary architecture, this device provides high power supply rejection and low noise, and achieves excellent line and load transient response with only a small 1µF ceramic output capacitor. The device allows an external soft start capacitor to be connected to program the start-up. This device output noise voltage is 15µV rms and is independent of the output voltage. A digital power-good output allows power system monitors to check the health of the output voltage. A user programmable precision under voltage lockout function facilitates sequencing of multiple power supplies. It is widely used in application such as regulation of noise sensitive applications: ADC and DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLs, communications and infrastructure, medical and healthcare, industrial and instrumentation etc.

• Input voltage range from 3.3V to 20V
• Output current is 500mA max, initial accuracy is ±0.8%
• PSRR performance of 60dB typ at (10kHz, VOUT = 3.3V)
• Reverse current protection, low dropout voltage is 350mV typ at 500mA
• Accuracy over line, load, and temperature is -2% to +1%, -1.25% to +1%
• Low quiescent current is 900µA max at (VIN = 10V, IOUT= 500mA)
• Low shutdown current is 40µA typ at (VIN = 12V), output voltage is adjustable
• Programmable soft start for inrush current control, power-good indicator
• Foldback current-limit and thermal overload protection, user programmable precision UVLO/enable
• Operating temperature is -40°C to +125°C, packaging style is 8-lead LFCSP