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MAX1857

Part Number	MAX1857
Manufacturer	Maxim
Description	500mA / Low-Dropout / Ripple-Rejecting LDO in MAX
Published	May 6, 2005
Detailed Description	19-1812; Rev 0; 1/01 500mA, Low-Dropout, Ripple-Rejecting LDO in µMAX General Description The MAX1857 low-dropout linea...
Datasheet	MAX1857 PDF File

Overview

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...

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