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LM78L05 -
3-Terminal Positive Regulators
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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...
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Typical Application
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Parametric Table
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Parametric Table
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Typical Performance
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Also Recommended
| LP38691 | Lower Dropout Voltage, Higher Reference Voltage Accuracy |
| LP38693 | Lower Dropout Voltage, Higher Reference Voltage Accuracy, Enable Pin |
| LP3878-ADJ | Lower Noise, Lower Dropout Voltage , Higher Reference Voltage Accuracy |
| LM3480 | Better Line/Load/Dropout Voltage |
| LP3985 | Improved Output Current, Dropout, Supply Current, Low Noise |
Additional Resources
Design Tools (see below)
Connection Diagram
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Datasheet
Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LM78L05ACH
| NONE
| NONE
| 08 Sep 1999
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LM78L05IBP
| A78LXX
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
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LM78L05IBPX
| NONE
| NATIONAL SEMICONDUCTOR
| 24 Jul 2009
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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) |
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LM78L05ACM | SLM | 0 | 42786 | 0 | 0 | 3352500 | 2 | 951281028
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LM78L05ACMX | SLM | 0 | 42786 | 0 | 0 | 3352500 | 2 | 951281028
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LM78L05ACZ | SLM | 0 | 42786 | 0 | 0 | 3352500 | 2 | 951281028
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LM78L05ITP | SLM | 0 | 42786 | 0 | 0 | 3352500 | 2 | 951281028
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LM78L05ITPX | SLM | 0 | 42786 | 0 | 0 | 3352500 | 2 | 951281028
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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.
Design Tools
| Title | Size in Kbytes |
Date |
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| LM78L05IBP Micro SMD Qualification Package |
4172 Kbytes |
17-Apr-2000 |
View Online |
Download |
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[Information as of 3-Jul-2009]
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RoHS Compliance Information
