ADP7142 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP7142
Manufacturer

ADI
ChipWorker Part#

CW345822710
Description

40V, 200mA, Low Noise, CMOS LDO Linear Regulator
Documentation

Datasheet

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ADP7142 Specifications

Attribute	Attribute Value

Part Number	ADP7142
Manufacturer	ADI
ChipWorker Part#	CW345822710
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The ADP7142 is a CMOS, low dropout (LDO) linear regulator that operates from 2.7 V to 40 V and provides up to 200 mA of output current. This high input voltage LDO is ideal for the regulation of high performance analog and mixed signal circuits operating from 40 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection, low noise, and achieves excellent line and load transient response with a small 2.2 µF ceramic output capacitor. The ADP7142 regulator output noise is 11 μV rms independent of the output voltage for the fixed options of 5 V or less.
The ADP7142 is available in 16 fixed output voltage options. The following voltages are available from stock: 1.2 V (adjustable), 1.8 V, 2.5 V, 3.3 V, and 5.0 V. Additional voltages available by special order are 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, 4.2 V, and 4.6 V.
Each fixed output voltage can be adjusted above the initial set point with an external feedback divider. This allows the ADP7142 to provide an output voltage from 1.2 V to VIN − VDO with high PSRR and low noise.
User programmable soft start with an external capacitor is available in the LFCSP and SOIC packages.
The ADP7142 is available in a 6-lead, 2 mm × 2 mm LFCSP making it not only a very compact solution, but it also provides excellent thermal performance for applications requiring up to 200 mA of output current in a small, low profile footprint. The ADP7142 is also available in a 5-lead TSOT and an 8-lead SOIC.
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
### Features and Benefits
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
±1.1%, 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 atVIN = 5 V, 3.0 μA atVIN = 40 V
Stable with a small 2.2 µF ceramic output capacitor
See data sheet for additional features

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