LM78L15 - 3-Terminal Positive Regulators
Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
•LM78L05 in micro SMD package
•Output voltage tolerances of ±5% over the temperature range
•Output current of 100mA
•Internal thermal overload protection
•Output transistor safe area protection
•Internal short circuit current limit
•Available in plastic TO-92 and plastic SO-8 low profile packages
•No external components
•Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V
•See AN-1112 for micro SMD considerations

General Description

The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. More...


  Typical Application
click for larger image


ParametersValues
Output Current 100 mA
Output Voltage 15 Volt
Input Min Voltage 16.7 Volt
Input Max Voltage 35 Volt
Adjustable Output No
On/Off Pin No
Error Flag No
Temperature Min -40 deg C
Temperature Max 85 deg C
RegType Linear Regulator


Typical Performance

click for larger image


  Also Recommended
LM3480▲Better Line/Load/Dropout Voltage
Connection Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM78LXX Series 3-Terminal Positive Regulators 685
Kbytes		 4-Apr-06 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LM78L15ACMSOIC NARROW8NOPB
STD		1
1		260
235		RoHS N/A Full productionN/A
 
Buy Now 		1K+$0.23rail
of
95		NSZXTT
LM78L
15ACM
8 weeks2000
LM78L15ACMXSOIC NARROW8NOPB
STD		1
1		260
235		RoHS N/A Full productionN/A
 
Buy Now 		1K+$0.23reel
of
2500		NSZXTT
LM78L
15ACM
8 weeks3000
LM78L15ACZTO-923NOPB
STD		1
1		NA
NA		RoHS N/A Full productionN/A
 
Buy Now 		1K+$0.23box
of
1800		NSXYTT
LM78L
15ACZ
8 weeks5000

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM78L15AC MDC
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LM78L15ACH
NONE
NONE
08 Sep 1999

General Description

The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. When used as a zener diode/resistor combination replacement, the LM78LXX usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the LM78LXX to be used in logic systems, instrumentation, HiFi, and other solid state electronic equipment.

The LM78LXX is available in the plastic TO-92 (Z) package, the plastic SO-8 (M) package and a chip sized package (8-Bump micro SMD) using National's micro SMD package technology. With adequate heat sinking the regulator can deliver 100mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM78L15ACMSLM04404600353250011002356520
LM78L15ACMXSLM04404600353250011002356520
LM78L15ACZSLM04404600353250011002356520

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


[Information as of 8-Nov-2009]