Analog Devices ADP7118 CMOS low dropout (LDO) linear regulator operates from 2.7V to 20V and provides up to 200mA of output current. This high input voltage LDO is ideal for the regulation of high performance analog and mixed-signal circuits operating from 20V down to 1.2V rails. ADP7142ACPZN-R7 are operates from 2.7V to 40V and provides up to 200mA of output current. This high input voltage LDO is ideal for the regulation of high performance analog and mixed signal circuits operating from 40V down to 1.2V rails. Using an advance proprietary architecture, ADI ADP7118 and ADP7142ACPZN-R7 devices provide high power supply rejection, low noise, and achieve excellent line and load transient response with a small 2.2F ceramic output capacitor. Regulator output noise is 11V rms independent of the output voltage for the fixed options of 5V or less.ADI ADP7118/ADP7142ACPZN-R7 evaluation boards are used to demonstrate the functionality of the ADP7118/ADP7142ACPZN-R7 series of linear regulators. Simple device measurements such as line and load regulation, dropout, and ground current can be demonstrated with just a single voltage source, a voltmeter, an ammeter, and load resistors. The evaluation boards include: ADP7118CP-EVALZ, ADP7118RD-EVALZ, ADP7118UJ-EVALZ, ADP7142CP-EVALZ, ADP7142RD-EVALZ, and ADP7142UJ-EVALZ.
Feature
- Low noise: 11 μV rms independent of fixed output voltage
- PSRR of 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz, VOUT ≤ 5 V, VIN = 7 V
- Input voltage range: 2.7 V to 40 V
- Maximum output current: 200 mA
- Initial accuracy: ±0.8%
- Accuracy over line, load, and temperature
- −1.2% to +1.5%, TJ = −40°C to +85°C
- ±1.8%, TJ = −40°C to +125°C
- Low dropout voltage: 200 mV (typical) at a 200 mA load, VOUT = 5 V
- User programmable soft start (LFCSP and SOIC only)
- Low quiescent current, IGND = 50 μA (typical) with no load
- Low shutdown current: 1.8 μA at VIN = 5 V, 3.0 μA at VIN = 40 V
- Stable with a small 2.2 μF ceramic output capacitor
- Fixed output voltage options: 1.8 V, 2.5 V, 3.3 V, 3.8 V, and 5.0 V
- 15 standard voltages between 1.2 V and 5.0 V are available
- Adjustable output from 1.2 V to VIN – VDO, output can be adjusted above initial set point
- Precision enable
- 2 mm × 2 mm, 6-lead LFCSP, 8-Lead SOIC, 5-Lead TSOT
- Supported bytool
Applications
- Regulation to noise sensitive applications
- ADC, DAC circuits, precision amplifiers, power for VCO VTUNE control
- Communications and infrastructure
- Medical and healthcare
- Industrial and instrumentation
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