MAX8559ETAJ2+T

Load Regulation :
Mounting Style : SMD/SMT
Output Type : Fixed
Maximum Operating Temperature : + 85 C
Number of Outputs : 2
Output Current : 300 mA
Input Voltage MAX : 6.5 V
Output Voltage : 1.8 V or 3 V
Dropout Voltage (Max) : 0.12 V at 100 mA
Package / Case : TDFN EP


Description

The MAX8559ETAJ2+T is one member of the MAX8559 series.It has the following features including (1)two low-dropout-voltage regulators;(2)300mA output current for each LDO;(3)independent shutdown controls;(4)thermal-overload and short-circuit protection.

The MAX8559ETAJ2+T dual, low-noise, low-dropout (LDO) linear regulator operates from a 2.5V to 6.5V input voltage and delivers at least 300mA of continuous output current. It offers low output noise and low dropout of only 60mV at 100mA. Typical output noise for this device is 32VRMS, and PSRR is 70dB at 10kHz. Designed with an internal P-channel MOSFET pass transistor, the MAX8559ETAJ2+T maintains a low 115A supply current per LDO, independent of the load current and dropout voltage. Other features include short-circuit protection and thermal-shutdown protection. The MAX8559ETAJ2+T includes two independent logic-controlled shutdown inputs and is capable of operating without a bypass capacitor to further reduce total solution size. The MAX8559 is available in a miniature 8-bump UCSP (2mm x 1mm) or 8-pin TDFN (3mm x 3mm) package.Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX8559ETAJ2+T is a dual, low-noise, low-dropout, low-quiescent-current linear regulator designed primarily for battery-powered applications. The regulators are available with preset 1.5V to 3.3V output voltages. These outputs of MAX8559ETAJ2+T can supply loads up to 300mA with a 4.7F output capacitor, or up to 150mA with a 2.2F output capacitor.As illustrated in the Functional Diagram, the MAX8559ETAJ2+T consists of a 1.25V reference, error amplifiers, P-channel pass transistors, internal feedback voltage-dividers,and autodischarge circuitry.The MAX8559 is designed to deliver low-dropout voltages and low quiescent currents in battery-powered systems. Power-supply rejection ratio is 70dB at 10kHz(see Power-Supply Rejection Ratio vs. Frequency of MAX8559ETAJ2+T in the Typical Operating Characteristics). When operating from sources other than batteries, improved supply-noise rejection and transient response is achieved by increasing the values of the input and output bypass capacitors and through passive RC or CRC filtering techniques.

Parameters:

Technical/Catalog Information	MAX8559ETAJ2+T
Vendor	Maxim Integrated Products
Category	Integrated Circuits (ICs)
Regulator Type	Multiple Output
Package / Case	8-TDFN Exposed Pad
Packaging	Tape & Reel (TR)
Regulator Topology	Positive Fixed
Current - Output	300mA
Voltage - Output	1.8V, 2.85V
Operating Temperature	-40°C ~ 85°C
Voltage - Input	2.5 ~ 6.5 V
Number of Regulators	2
Current - Limit (Min)	310mA
Current Short Circuit (Isc)	-
Drawing Number	175; 21-0137; TA; 8
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	MAX8559ETAJ2+T MAX8559ETAJ2+T