●Product Details
●The ADP7182 is a CMOS, low dropout (LDO) linear regulator that operates from −2.7 V to −28 V and provides up to −200 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from −27 V down to −1.2 V rails. Using an advanced proprietary architecture, it provides high power supply rejection and low noise, and achieves excellent line and load transient response with a small 2.2 μF ceramic output capacitor.
●The ADP7182 is available in fixed output voltage and an adjustable version that allows the output voltage to range from −1.22 V to −VIN \+ VDO via an external feedback divider.
●The following fixed output voltages are available from stock: −5 V (3 mm × 3 mm LFCSP), −1.8 V, −2.5 V, −3 V, −5 V (TSOT), −1.2 V, −1.5 V, −2.5 V, −5 V (2 mm × 2 mm LFCSP). Additional voltages are available by special order.
●The ADP7182 regulator output noise is 18 μV rms independent of the output voltage. The enable logic is capable of interfacing with positive or negative logic levels for maximum flexibility.
●The ADP7182 is available in 5-lead TSOT, 6- and 8-lead LFCSP packages for a small, low profile footprint.
●Applications
● Regulation to noise sensitive applications
● Analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, precision amplifiers
● Communications and infrastructure
● Medical and healthcare
● Industrial and instrumentation
●### Features and Benefits
● Low noise: 18 μV rms
● Power supply rejection ratio (PSRR): 66 dB at 10 kHz at VOUT = −3 V
● Positive or negative enable logic
● Stable with small 2.2 μF ceramic output capacitor
● Input voltage range: −2.7 V to −28 V
● Maximum output current: −200 mA
● Low dropout voltage: −185 mV at −200 mA load
● Initial accuracy: ±1%
● Accuracy over line, load, and temperature
● +2% maximum/−3% minimum
● Low quiescent current, IGND = −650 μA with −200 mA load
● Low shutdown current: −2 μA
● Adjustable output from −1.22 V to −VIN \+ VDO
● Current-limit and thermal overload protection
● 6- and 8-lead LFCSP and 5-lead TSOT
● Supported by ADIsimPower tool
