DataSheet39.com

What is LM2990J-5.0-QML?

This electronic component, produced by the manufacturer "National Semiconductor", performs the same function as "Negative Low Dropout Regulator".


LM2990J-5.0-QML Datasheet PDF - National Semiconductor

Part Number LM2990J-5.0-QML
Description Negative Low Dropout Regulator
Manufacturers National Semiconductor 
Logo National Semiconductor Logo 


There is a preview and LM2990J-5.0-QML download ( pdf file ) link at the bottom of this page.





Total 12 Pages



Preview 1 page

No Preview Available ! LM2990J-5.0-QML datasheet, circuit

June 1999
LM2990
Negative Low Dropout Regulator
General Description
The LM2990 is a three-terminal, low dropout, 1 ampere
negative voltage regulator available with fixed output volt-
ages of −5, −5.2, −12, and −15V.
The LM2990 uses new circuit design techniques to provide
low dropout and low quiescent current. The dropout voltage
at 1A load current is typically 0.6V and a guaranteed
worst-case maximum of 1V over the entire operating tem-
perature range. The quiescent current is typically 1 mA with
1A load current and an input-output voltage differential
greater than 3V. A unique circuit design of the internal bias
supply limits the quiescent current to only 9 mA (typical)
when the regulator is in the dropout mode (VOUT − VIN 3V).
Output voltage accuracy is guaranteed to ±5% over load,
and temperature extremes.
The LM2990 is short-circuit proof, and thermal shutdown in-
cludes hysteresis to enhance the reliability of the device
when overloaded for an extended period of time. The
LM2990 is available in a 3-lead TO-220 package and is rated
for operation over the automotive temperature range of
−40˚C to +125˚C.
Features
n 5% output accuracy over entire operating range
n Output current in excess of 1A
n Dropout voltage typically 0.6V at 1A load
n Low quiescent current
n Internal short circuit current limit
n Internal thermal shutdown with hysteresis
n Functional complement to the LM2940 series
Applications
n Post switcher regulator
n Local, on-card, regulation
n Battery operated equipment
Typical Application
DS010801-1
*Required if the regulator is located further than 6 inches from the power supply filter capacitors. A 1 µF solid tantalum or a 10 µF aluminum electrolytic
capacitor is recommended.
**Required for stability. Must be at least a 10 µF aluminum electrolytic or a 1 µF solid tantalum to maintain stability. May be increased without bound to
maintain regulation during transients. Locate the capacitor as close as possible to the regulator. The equivalent series resistance (ESR) is critical, and
should be less than 10over the same operating temperature range as the regulator.
Ordering Information and Connection Diagrams
Temperature
Range
−40˚C to
+125˚C
−55˚C to
+125˚C
-5.0
LM2990T-5.0
LM2990S-5.0
LM2990J-5.0-QML
5962-9571101QEA
LM2990WG5.0-QML
5962-9571101QXA
Output Voltage
-5.2 -12
LM2990T-5.2
LM2990T-12
LM2990S-12
LM2990J-12-QML
5962-9571001QEA
-15
LM2990T-15
LM2990S-15
LM2990J-15-QML
5962-9570901QEA
Package
TO-220
TO-263
J16A
WG16A
© 1999 National Semiconductor Corporation DS010801
www.national.com

line_dark_gray
LM2990J-5.0-QML equivalent
Typical Performance Characteristics
Dropout Voltage
Normalized Output Voltage
LM2990-5.0 and LM2990-5.2
Quiescent Current
DS010801-14
LM2990-12
Quiescent Current
LM2990-15
Quiescent Current
DS010801-15
DS010801-16
LM2990-5 and LM2990-5.2
Low Voltage Behavior
DS010801-17
LM2990-5 and LM2990-5.2
Line Transient Response
DS010801-18
LM2990-5 and LM2990-5.2
Load Transient Response
DS010801-19
LM2990-12 and LM2990-15
Low Voltage Behavior
DS010801-20
LM2990-12 and LM2990-15
Line Transient Response
DS010801-21
LM2990-12 and LM2990-15
Load Transient Response
DS010801-22
DS010801-23
5
DS010801-24
www.national.com


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LM2990J-5.0-QML electronic component.


Information Total 12 Pages
Link URL [ Copy URL to Clipboard ]
Download [ LM2990J-5.0-QML.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
LM2990J-5.0-QMLThe function is Negative Low Dropout Regulator. National SemiconductorNational Semiconductor

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

LM29     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search