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Part Number: MAX1819
Description: The MAX1819 low-dropout linear regulator operates from a 2.5V to 5.5V supply and delivers a guaranteed...
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MAX1819
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DataSheet
General Description
MAX1819 General Description
The MAX1819 low-dropout linear regulator operates from a 2.5V to 5.5V supply and delivers a guaranteed 500mA load current with low 120mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see the Selector Guide) or can be adjusted from 1.25V to 5V with an external resistive-divider.
An internal PMOS pass transistor allows the low 125A supply current to remain independent of load, making this device ideal for portable battery-operated equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, base stations, and notebook computers.
Other features include an active-low, open-drain reset output that indicates when the output is out of regulation, a 0.1A shutdown, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 6-pin UCSP™ package.
MAX1819 Maximum Ratings
IN, SHDN, POK, SET to GND ...................................-0.3V to +6V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration ............................................1min
Continuous Power Dissipation (TA = +70) (Note 1)
6-Pin UCSP (derate 10.5mW/ above +70) ...............840mW
Operating Temperature Range ...........................-40 to +85
Junction Temperature......................................................+150
Storage Temperature Range .............................-65 to +150
Soldering Temperature (10s) ..........................................+300
Note 1: Thermal properties are specified with product mounted on PC board with one square-inch of copper area and still air.
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.
MAX1819 Features
`Guaranteed 500mA Output Current
`Low 90mV Dropout at 500mA
`±1% Initial Output Accuracy
`Preset Output at 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V
`Adjustable Output from 1.25V to 5V
`Power-OK Output
`Low 125A Ground Current
`0.1A Shutdown Current
`Thermal Overload Protection
`Output Current Limit
`Tiny 840mW 6-Pin UCSP Packag
`Low 90mV Dropout at 500mA
`±1% Initial Output Accuracy
`Preset Output at 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V
`Adjustable Output from 1.25V to 5V
`Power-OK Output
`Low 125A Ground Current
`0.1A Shutdown Current
`Thermal Overload Protection
`Output Current Limit
`Tiny 840mW 6-Pin UCSP Packag
MAX1819 Typical Application
·Notebook Computers
·Cellular and Cordless Telephones
·Personal Digital Assistants (PDAs)
·Palmtop Computers
·Base Stations
·USB Hubs
·Docking Stations
·Cellular and Cordless Telephones
·Personal Digital Assistants (PDAs)
·Palmtop Computers
·Base Stations
·USB Hubs
·Docking Stations
MAX1819
PDF/DataSheet Download
- Datasheet: MAX1819
- File Size: 279924 KB
- Manufacturer: Maxim
- Click here to Download
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