LM2931-N

SNOSBE5G – MARCH 2000 – 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)

Input Voltage

Operating Range

26V

Overvoltage Protection

LM2931A, LM2931C (Adjustable)

60V

LM2931-N

50V

Internal Power Dissipation

(3) (4)

Internally Limited

Operating Ambient Temperature

Range

−40°C to +85°C

Maximum Junction Temperature

125°C

Storage Temperature Range

−65°C to +150°C

Lead Temp. (Soldering, 10 seconds)

230°C

2000V

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when

operating the device beyond its rated operating conditions.

(2)

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

specifications.

(3)

See circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used.

(4)

exceeded, the die temperature will rise above 150°C and the LM2931-N will go into thermal shutdown. For the LM2931-N in the TO-92

package,

package,

sum of the package thermal resistance junction-to-case of 3°C/W and the thermal resistance added by the heat sink and thermal

interface.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,

and with 1.6 or more square inches of copper area,

(5)

Human body model, 100 pF discharged through 1.5 k

Ω.

ELECTRICAL CHARACTERISTICS FOR FIXED 3.3V VERSION

(1)

LM2931-N-3.3

Parameter

Conditions

Units

Limit

Typ

(2)

Output Voltage

3.3

3.465

3.135

4V

3.630

2.970

Line Regulation

4V

4

33

Load Regulation

5mA

10

50

Output Impedance

200

m

Ω

100Hz - 10kHz

Quiescent Current

0.4

1.0

15

mA

Output Noise Voltage

330

Long Term Stability

13

mV/1000 hr

Ripple Rejection

80

dB

(1)

See circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used.

(2)

type face).

4

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