MAX8940

PRODUCTION

Low-Noise, High PSRR, Low-Dropout, 120mA Linear Regulator

Space-Saving, Low-Noise, High PSRR, Low-Dropout 120mA LDO

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $0.54

Viewing:

Overview

Space-Saving SC70
25µV_RMS Output Noise at 100Hz to 100kHz Bandwidth
65dB PSRR at 10kHz
120mV Dropout at 120mA Load
Stable with 1µF Ceramic Capacitor for Any Load
Guaranteed 120mA Output
Output Voltages: 2.8V or 3V
Low 40µA Ground Current
Excellent Load/Line Transient
Overcurrent and Thermal Protection

The MAX8940 low-noise, low-dropout (LDO) linear regulator is designed to deliver up to 120mA continuous output current. This regulator achieves a low 120mV dropout for 120mA load current. The MAX8940 uses an advanced architecture to achieve low output voltage noise of 25µV_RMS and PSRR of 45dB at 100kHz.

The MAX8940 is preset to either 2.8V or 3.0V. Designed with a p-channel MOSFET series pass transistor, the MAX8940 maintain very low ground current (40µA).

The regulator is designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8940 requires only 1µF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1µA.

Package is a 5-pin SC70.

Applications

Base Stations
Bluetooth Portable Radios and Accessories
Cellular and Cordless Phones
Digital Cameras
PDA and Palmtop Computers
Personal Stereos
Portable and Battery-Powered Equipment
Wireless LANs

Part Models: 2
1ku List Price: Starting From $0.54

Documentation

Data Sheet 1

MAX8940: Low-Noise, High PSRR, Low-Dropout, 120mA Linear Regulator Data Sheet (Rev.0) 07/16/2009

Reliability Data 1

MAX8940 Reliability Data 01/12/2023

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
MAX8940EXK28+	5-SC70-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX8940EXK28+T	5-SC70-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Latest Discussions

No discussions on MAX8940 yet. Have something to say?

Start a Discussion on EngineerZone®