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LM340-N

Texas Instruments
Part Number LM340-N
Manufacturer Texas Instruments
Description 3-Terminal Positive Regulators
Published Aug 21, 2019
Detailed Description LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 LM340-N/LM78XX Series 3-Terminal Positive...
Datasheet PDF File LM340-N PDF File

LM340-N
LM340-N

Overview
LM340-N, LM78xx www.
ti.
com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 LM340-N/LM78XX Series 3-Terminal Positive Regulators Check for Samples: LM340-N, LM78xx FEATURES 1 •2 Complete Specifications at 1A Load • Output Voltage Tolerances of ±2% at Tj = 25°C and ±4% Over the Temperature Range (LM340A) • Line Regulation of 0.
01% of VOUT/V of ΔVIN at 1A Load (LM340A) • Load Regulation of 0.
3% of VOUT/A (LM340A) • Internal Thermal Overload Protection • Internal Short-circuit Current Limit • Output Transistor Safe Area Protection • P+ Product Enhancement Tested DESCRIPTION The LM140/LM340A/LM340-N/LM78XXC monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible.
If adequate heat sinking is provided, they can deliver over 1.
0A output current.
They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation.
In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.
Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components.
It is not necessary to bypass the output, although this does improve transient response.
Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.
The 5V, 12V, and 15V regulator options are available in the steel TO-3 power package.
The LM340A/LM340-N/LM78XXC series is available in the TO-220 plastic power package, and the LM340-N-5.
0 is available in the SOT-223 package, as well as the LM340-5.
0 and LM340-12 in the surface-mount DDPAK/TO-263 package.
Typical Applications *Required if the regulator is located far from the power supply filter.
**Although no output capacitor is needed f...


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