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MAX5092

Part Number	MAX5092
Manufacturer	Maxim Integrated Products
Description	(MAX5092 / MAX5093) LDOs
Published	Dec 26, 2006
Detailed Description	www.DataSheet4U.com 19-0659; Rev 0; 10/06 KIT ATION EVALU E L B AVAILA 4V to 72V Input LDOs with Boost Preregulator G...
Datasheet	MAX5092 PDF File

Overview

www.
DataSheet4U.
com 19-0659; Rev 0; 10/06 KIT ATION EVALU E L B AVAILA 4V to 72V Input LDOs with Boost Preregulator General Description The MAX5092A/MAX5092B/MAX5093A/MAX5093B lowquiescent-current, low-dropout (LDO) regulators contain simple boost preregulators operating at a high frequency.
The devices seamlessly provide a preset 3.
3V (MAX5092A/MAX5093A) or 5V (MAX5092B/MAX5093B) LDO output voltage from an automotive cold-crank through load-dump (3.
5V to 80V) input voltage conditions.
The MAX5092_/MAX5093_ deliver up to 250mA with excellent load and line regulation.
During normal operation, when the battery is healthy, the boost preregulator is completely turned off, reducing quiescent current to 65µA (typ).
This makes the devices suitable for always-on power supplies.
The buck-boost operation achieved by this combination of LDO and boost preregulator offers the advantage of using a single off-the-shelf inductor in place of the multiple-winding custom magnetics needed in typical si...

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