LM2941, LM2941C

SNVS770G – JUNE 1999 – REVISED APRIL 2013

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These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1) (2)

LM2941T, LM2941S, LM2941LD

60V

Input Voltage (Survival Voltage,

≤ 100ms)

LM2941CT, LM2941CS

45V

Internally Limited

Maximum Junction Temperature

150°C

Storage Temperature Range

TO-220 (T), Wave

260°C, 10s

TO-263 (S)

235°C, 30s

WSON-8 (LD)

235°C, 30s

±2 kV

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for

which the device is intended to be functional, but device parameter specifications may not be ensured under these conditions. 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)

into thermal shutdown. If the TO-263 package is used, the thermal resistance can be reduced by increasing the P.C. board copper area

thermally connected to the package: Using 0.5 square inches of copper area,

37°C/W; and with 1.6 or more square inches of copper area,

using a JESD51-7 board with six vias, using no airflow and an ambient temperature of 22°C. The value

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 (literature number 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)

The Human Body Model (HBM) is a 100 pF capacitor discharged through a 1.5k

Ω resistor into each pin. Test method is per

JESD22–A114.

Operating Ratings

Maximum Input Voltage

26V

LM2941T

LM2941CT

0°C

Temperature Range

LM2941S

LM2941CS

0°C

LM2941LD

Electrical Characteristics—LM2941T, LM2941S, LM2941LD

5V

while those in boldface type apply over the full Operating Temperature Range.

LM2941T

LM2941S

Units

Parameter

Conditions

Typ

LM2941LD

(Limits)

Limit

1.237/1.211

V(min)

Reference Voltage

5mA

(1)

1.275

1.313/1.339

V(max)

Line Regulation

4

10/10

mV/V(max)

Load Regulation

50mA

7

10/10

mV/V(max)

100 mADC and 20 mArms

Output Impedance

7

m

Ω/V

10

15/20

mA(max)

Quiescent Current

30

45/60

mA(max)

(1)

The output voltage range is 5V to 20V and is determined by the two external resistors, R1 and R2. See Typical Application Circuit.

2

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