MAX1819

PRODUCTION

500mA Low-Dropout Linear Regulator in UCSP

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • 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 125µA Ground Current
  • 0.1µA Shutdown Current
  • Thermal Overload Protection
  • Output Current Limit
  • Tiny 840mW 6-Pin UCSP Package

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 in the full data sheet) or can be adjusted from 1.25V to 5V with an external resistive-divider.

An internal PMOS pass transistor allows the low 125µA 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 0.1µA shutdown, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 6-pin UCSP™ package.

Applications

  • Base Stations
  • Cellular and Cordless Telephones
  • Docking Stations
  • Notebook Computers
  • Palmtop Computers
  • Personal Digital Assistants (PDAs)
  • USB Hubs
MAX1819
500mA Low-Dropout Linear Regulator in UCSP
MAX1819: Typical Operating Circuit
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Documentation

Data Sheet 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
LDO Linear Regulators 3
MAX1818
PRODUCTION 500mA, Low-Dropout Linear Regulator in SOT23
MAX1806
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MAX1792
PRODUCTION 500mA, Low-Dropout Linear Regulator in µMAX
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