ADPL42005

Name: ADPL42005
Brand: Analog Devices
Price: 0.45 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

20V, 500mA, Low Noise, CMOS LDO

Data Sheet (Rev. 0) Product Selection Table

Part Models: 14
1ku List Price: Starting From $0.45

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Overview

Input voltage range: 4V to 20V
Maximum output current: 500mA
Low noise: 32μVrms for fixed output versions
PSRR performance of 58dB at 10kHz, V_OUT = 3.3V
Reverse current protection
Low dropout voltage: 400mV at 500mA
Initial accuracy: ±0.8
Accuracy over line, load, and temperature

−2% to +1%, T_J = −40°C to +125°C

Low quiescent current (V_IN = 10V), I_GND = 900μA with 500 mA load

Low shutdown current: <40μA at V_IN = 12V, stable with small 1μF ceramic output capacitor
Six fixed output voltage options: 1.5V, 1.8V, 2.5V, 3V, 3.3V, and 5V
Adjustable output from 1.22V to V_IN − V_DO
Foldback current limit and thermal overload protection
User programmable precision UVLO/enable
Power-good indicator
8-lead LFCSP and 8-lead SOIC packages

Part Models: 14
1ku List Price: Starting From $0.45

Documentation

Data Sheet 1

ADPL42005 20V, 500mA, Low Noise, CMOS LDO Data Sheet (Rev.0) 03/28/2025

User Guide 1

ADPL42005 User Guide: Evaluates the ADPL42005 20V, 500mA, Low Noise, CMOS LDO Linear Regulator (Rev.0) 03/28/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADPL42005ACPZ-1.5-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ACPZ-1.8-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ACPZ-2.5-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ACPZ-3.0-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ACPZ-3.3-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ACPZ-5.0-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ACPZ-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-1.5-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-1.8-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-2.5-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-3.0-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-3.3-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-5.0-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
ADPL42005ARDZ-R7	8-Lead SOIC w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

ADPL42005
ADPL42005-1.5
ADPL42005-1.8
ADPL42005-2.5
ADPL42005-3.0
ADPL42005-3.3
ADPL42005-5.0

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

Evaluates the ADPL42005 20V, 500mA, Low Noise, CMOS LDO Linear Regulator

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Features and Benefits

Input voltage range: 4V to 20V
Resistor programmed 3.3V output voltage
Jumper turns regulator on or connects the EN pin to a connector to turn the regulator on or off externally
Jumper connects the SENSE/ADJ pin to the output through a resistor divider or directly
V_IN, V_OUT, and GND test points for regulation and dropout voltage monitoring
PG test point for power good voltage monitoring that helps to indicate the status of the output
8-lead (3mm x 3mm) LFCSP package or 8-lead SOIC package

Product Details

The ADPL42005 evaluation boards evaluate the ADPL42005, a 20V, 500mA, low noise, complementary metal oxide semiconductor (CMOS), low dropout (LDO) linear regulator.

See the Ordering Information section for the two types of evaluation boards that evaluate the ADPL42005. There is an evaluation board that features an 8-lead, 3mm x 3mm LFCSP package, and another evaluation board that features an 8-lead SOIC package.

The evaluation boards provide a 3.3V output over an input range of 4.0V to 20V. The maximum output current is 500mA, but the output current is also limited by the thermal dissipation of the ADPL42005. The evaluation boards use the adjustable version of the ADPL42005. A resistor divider programs the output of the adjustable ADPL42005 to 3.3V. Noise performance for the adjustable ADPL42005 can be made comparable to a fixed output ADPL42005 by installing optional RC network components into placeholders provided by the evaluation board printed circuit board (PCB) designs. The evaluation boards can easily be configured with a jumper for fixed output versions of the ADPL42005 that normally have their SENSE/ADJ pin connected directly to the output.

In addition to connectors for the input voltage, output voltage, EN control signal, and ground, the evaluation boards provide test points for the input, output, and PG pin voltages. A jumper normally connects the EN pin to the V_IN input, but the jumper can be repositioned so EN can be driven externally at its connector instead.

For more details, refer to the ADPL42005 data sheet. Consult it with this user guide when using the ADPL42005 evaluation boards.