LM2940T-12.0 datasheet(3/35 Pages) TI

номер детали	LM2940T-12.0

подробное описание детали	Dropout Voltage Typically 0.5V @IO = 1A, Output Current in Excess of 1A

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производитель	TI [Texas Instruments]

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LM2940-N, LM2940C

www.ti.com

SNVS769I – MARCH 2000 – REVISED APRIL 2013

Absolute Maximum Ratings

(1) (2)

LM2940-N KTT, NFE, NAC, NDE, DCY

≤ 100 ms

60V

LM2940C KTT, NDE

≤ 1 ms

45V

Internal Power Dissipation(3)

Internally Limited

Maximum Junction Temperature

150°C

Storage Temperature Range

−65°C ≤ TJ ≤ +150°C

TO-220 (NDE), Wave

260°C, 10s

DDPAK/ TO-263 (KTT)

235°C, 30s

Soldering Temperature (4)

SOT-223 (DCY)

260°C, 30s

WSON-8 (NGN)

235°C, 30s

ESD Susceptibility (5)

2 kV

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which

the device functions but the specifications might not be ensured. For ensured specifications and test conditions see the Electrical

Characteristics.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

The maximum allowable power dissipation is a function of the maximum junction temperature, TJ, the junction-to-ambient thermal

resistance,

θJA, and the ambient temperature, TA. Exceeding the maximum allowable power dissipation will cause excessive die

temperature, and the regulator will go into thermal shutdown. The value of

θJA (for devices in still air with no heatsink) is 60°C/W for the

TO-220 package, 80°C/W for the DDPAK/TO-263 package, and 174°C/W for the SOT-223 package. The effective value of

θJA can be

reduced by using a heatsink (see Application Hints for specific information on heatsinking). The value of

θJA for the WSON package is

specifically dependent on PCB trace area, trace material, and the number of layers and thermal vias. For improved thermal resistance

and power dissipation for the WSON package, refer to Application Note AN-1187 (SNOA401). It is recommended that 6 vias be placed

under the center pad to improve thermal performance.

(4)

Refer to JEDEC J-STD-020C for surface mount device (SMD) package reflow profiles and conditions. Unless otherwise stated, the

temperature and time are for Sn-Pb (STD) only.

(5)

ESD rating is based on the human body model, 100 pF discharged through 1.5 k

Ω.

Operating Conditions

(1)

Input Voltage

26V

LM2940-N NDE, LM2940-N KTT

−40°C ≤ TJ ≤ 125°C

LM2940C NDE, LM2940C KTT

0°C

≤ TJ ≤ 125°C

Temperature Range

LM2940-N DCY

−40°C ≤ TA ≤ 85°C

LM2940-N NFE, LM2940-N NAC

−55°C ≤ TJ ≤ 125°C

LM2940-N NGN

−40°C ≤ TJ ≤ 125°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which

the device functions but the specifications might not be ensured. For ensured specifications and test conditions see the Electrical

Characteristics.

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Product Folder Links: LM2940-N LM2940C

Аналогичный номер детали - LM2940T-12.0

производитель	номер детали	датащи	подробное описание детали
Texas Instruments	LM2940T-12.0	2Mb / 35P	[Old version datasheet] LM2940-N/LM2940C 1A Low Dropout Regulator
	LM2940T-12.0	2Mb / 37P	[Old version datasheet] 1A Low Dropout Regulator
	LM2940T-12.0/NOPB	2Mb / 35P	[Old version datasheet] LM2940-N/LM2940C 1A Low Dropout Regulator
	LM2940T-12.0/NOPB	2Mb / 37P	[Old version datasheet] 1A Low Dropout Regulator

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Аналогичное описание - LM2940T-12.0

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