LP38513 Datasheet | National Semiconductor

Description The LP38513 fast response ultra low dropout linear regulator operates from a +2.25V to +5.50V input supply. This ultra low dropout linear regulator responds very quickly to step changes in line or load conditions, which makes it suitable for low voltage microprocessor applications. Developed on a CMOS process, with a PMOS pass transistor, the LP38513 has low quiescent current operation that is independent of the output load current. Ground Pin Current: Typically 12 m A at 3A load current. Disable Mode: Typically 60 µA quiescent current when the Enable pin is pulled low. ERROR Flag: The ERROR Flag goes low if VOUT falls more than typically 15% below the nominal value. Precision Output Voltage: A guaranteed VOUT accuracy of ±2.6% with TJ from 0°C to 125°C. Features - - - - - - - - Conversions from 2.5V rail to 1.8V Stable with ceramic capacitors Low ground pin current Load regulation of 0.1% for 10 m A to 3A load current 60 μA typical quiescent current in shutdown mode Guaranteed output current of 3A Available in TO220-5 and TO263-5 packages Guaranteed VOUT accuracy of ±2.6% with TJ from 0°C to +125°C - ERROR flag indicates VOUT status - Over-Temperature and Over-Current protection - - 40°C to +125°C operating TJ range Applications - - - - - - - Microprocessor power supplies GTL, GTL+, BTL, and SSTL bus terminators Power supplies for DSPs SCSI terminator Post regulators Battery chargers Other battery powered applications Typical Application Circuit © 2007 National Semiconductor Corporation .national. .Data Sheet.in Ordering Information TABLE 1. Package Marking and Ordering Information Output Voltage 1.8 Order Number LP38513S-1.8 LP38513SX-1.8 LP38513T-1.8 Package Type TO263-5 TO263-5 TO220-5 Package Marking LP38513S-1.8 LP38513S-1.8 LP38513T-1.8 Supplied As: Rail Tape and Reel Rail Connection Diagrams Top View TO-220 5 Pin Package Top View TO-263 5 Pin Package Pin Descriptions for TO-220 and TO-263 5...