Datasheet4U Logo Datasheet4U.com

MAX1857 - 500mA / Low-Dropout / Ripple-Rejecting LDO in MAX

General Description

The MAX1857 low-dropout linear regulator operates from a +2.5V to +5.5V supply and delivers a guaranteed 500mA load current with low 120mV dropout.

Key Features

  • include an active-low open-drain reset output with a 4.5ms timeout period that indicates when the output is out of regulation, a 0.1µA shutdown mode, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 8-pin µMAX package. For higher power.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MAX185 (MAX183 - MAX185) High-Speed 12-Bit A/D Converters Maxim Integrated Products
MAX18000 500mV to 5.5V Input nanoPower Boost Converter Analog Devices
MAX1806 Low-Voltage Linear Regulator Maxim Integrated
MAX1820 WCDMA Cellular Phone 600mA Buck Regulators Maxim Integrated Products
MAX1821 WCDMA Cellular Phone 600mA Buck Regulators Maxim Integrated Products

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1852 SC70 Inverting Charge Pumps with Shutdown
MAX1853 SC70 Inverting Charge Pumps with Shutdown
MAX1854 High-Speed / Adjustable / Synchronous Step-Down Controllers with Integrated Voltage Positioning
MAX1855 High-Speed / Adjustable / Synchronous Step-Down Controllers with Integrated Voltage Positioning
MAX1856 Wide Input Range / Synchronizable / PWM SLIC Power Supply

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-1812; Rev 0; 1/01 500mA, Low-Dropout, Ripple-Rejecting LDO in µMAX General Description The MAX1857 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 4.75V or can be adjusted from 1.25V to 5.0V with an external resistive divider. An internal PMOS pass transistor allows the low 135µA 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 with a 4.