ADP7104

RECOMMENDED FOR NEW DESIGNS

20 V, 500 mA, Low Noise, CMOS LDO

Data Sheet (Rev. K) Product Selection Table

Part Models: 16
1ku List Price: Starting From $1.79

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Overview

Input voltage range: 3.3 V to 20 V
Maximum output current: 500 mA
Low Noise: 15 μV rms for fixed output versions
PSRR Performance of 60 dB at 10 kHz, V_OUT= 3.3 V
Reverse current protection
Low dropout voltage: 350 mV at 500 mA
Initial accuracy: ±0.8%
Accuracy over line, load, and temperature
- −2% to +1%, T_J = −40°C to +125°C
- −1.25% to +1%, T_J = 0°C to +85°C

Low quiescent current (V_IN = 5 V), I_GND = 900 μA with 500 mA load
Low shutdown current: <40 μA at V_IN = 12 V, stable with small 1 μF ceramic output capacitor
7 fixed output voltage options: 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5 V, and 9 V
Adjustable output from 1.22 V 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

The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 μF ceramic output capacitor.

The ADP7104 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to V_IN − V_DO via an external feedback divider.

The ADP7104 output noise voltage is 15 μV 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 undervoltage lockout function facilitates sequencing of multiple power supplies.

The ADP7104 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 500 mA of output current in a small, low-profile footprint.

APPLICATIONS

Regulation to noise sensitive applications: ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLs
Communications and infrastructure
Medical and healthcare
Industrial and instrumentation

Part Models: 16
1ku List Price: Starting From $1.79

Documentation

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
ADP7104ACPZ-1.5-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-1.8-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-2.5-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-3.0-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-3.3-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-5.0-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-9.0-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ACPZ-R7	8-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-1.5-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-1.8-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-2.5-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-3.0-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-3.3-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-5.0-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-9.0-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADP7104ARDZ-R7	8-Lead SOIC w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 6, 2014 - 13_0223 Assembly and Test Transfer of Select 2x3mm and 3x3mm LFCSP Products to STATS ChipPAC China
		PCN13_0223_Form Material_Report Detailed Change Description Qualification Results Summary Test Correlation Report
ADP7104ACPZ-1.5-R7	PRODUCTION
ADP7104ACPZ-1.8-R7	PRODUCTION
ADP7104ACPZ-2.5-R7	PRODUCTION
ADP7104ACPZ-3.0-R7	PRODUCTION
ADP7104ACPZ-3.3-R7	PRODUCTION
ADP7104ACPZ-5.0-R7	PRODUCTION
ADP7104ACPZ-9.0-R7	PRODUCTION
ADP7104ACPZ-R7	PRODUCTION
Jun 9, 2025 - 25_0155 ADP7104 Package Outline Drawing and Data Sheet Revision
		PCN25_0155_Form Material_Report Package Outline Drawing
ADP7104ARDZ-1.5-R7	PRODUCTION
ADP7104ARDZ-1.8-R7	PRODUCTION
ADP7104ARDZ-2.5-R7	PRODUCTION
ADP7104ARDZ-3.0-R7	PRODUCTION
ADP7104ARDZ-3.3-R7	PRODUCTION
ADP7104ARDZ-5.0-R7	PRODUCTION
ADP7104ARDZ-9.0-R7	PRODUCTION
ADP7104ARDZ-R7	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
ADP7105	RECOMMENDED FOR NEW DESIGNS	20 V, 500 mA, Low Noise LDO Regulator with Soft Start
LT1763	RECOMMENDED FOR NEW DESIGNS	500mA, Low Noise, LDO Micropower Regulators

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

ADP7104
ADP7104-1.5
ADP7104-1.8
ADP7104-2.5
ADP7104-3.0
ADP7104-3.3
ADP7104-5.0
ADP7104-9.0

ADI Linear Regulator Design Tool and Parametric Search

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