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A8178LLR

Allegro MicroSystems
Part Number A8178LLR
Manufacturer Allegro MicroSystems
Description LOW-DROPOUT/ 7.7 V PREREGULATOR
Published Mar 23, 2005
Detailed Description 8178 PRODUCT PREVIEW (Subject to change without notice) April 5, 1996 Data Sheet 27468.22 LOW-DROPOUT, 7.7 V PREREGULA...
Datasheet PDF File A8178LLR PDF File

A8178LLR
A8178LLR


Overview
8178 PRODUCT PREVIEW (Subject to change without notice) April 5, 1996 Data Sheet 27468.
22 LOW-DROPOUT, 7.
7 V PREREGULATOR Designed specifically to meet the stringent requirements of automotive applications, the A8178LLR and A8178LLT provide an output voltage of 7.
7 V ±15% for supply voltages greater than 6.
9 V.
They also provide a low-dropout tracking output for supply voltages down to 2.
5 V.
These regulators are intended to be used with sensitive automotive electronics systems that do not have the capability of low dropout operation and cannot withstand the high-voltage transients typical of automotive applications.
These 7.
7 V preregulators will withstand all ISO pulses (ignition coil disconnect requires an external diode) and will continue to operate during positive power supply transients (noise).
These devices are supplied in small-outline plastic transistor packages for surface-mount applications.
The A8178LLR is supplied in the minimum footprint SOT-23/TO-236AB; the A8178LLT is furnished in the SOT-89/TO-243AA for increased allowable package power dissipation.
3 VR 1 2 VR 7.
7 V 1 2 Dwg.
PD-0xx ABSOLUTE MAXIMUM RATINGS Input Voltage, VI .
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30 V Reverse Input Voltage, VRI .
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-120 V Output Current, IO .
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TBD* Operating Temperature Range, TA .
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-40°C to +150°C Junction Temperature, TJ .
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+150 °C Storage Temperature Range, TS .
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-40°C to +170°C * Output current rating is limited by input voltage, duty cycle, and ambient temperature.
Under any set of conditions, do not exceed a junction temperature of +150° C.
See next page.
7.
7 V 3 This document contains information on a product under development.
Allegro MicroSystems, Inc.
reserves the right to change or discontinue this product without notice.
Always order by complete part number: A8178LLT .
8178 LOW-DROPOUT, 7.
7 V PREREGULATOR ELECTRICAL CHARACTERISTICS over operating temperature range.
Limits Cha...


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