LM27

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SNIS124D – AUGUST 2002 – REVISED JULY 2013

Absolute Maximum Ratings

(1)

Input Voltage

6.0V

Input Current at any pin(2)

5mA

Package Input Current(2)

20mA

Package Dissipation at TA = 25°C

(3)

500mW

Vapor Phase (60 seconds)

215°C

Soldering Information(4)

SOT23 Package

Infrared (15 seconds)

220°C

Storage Temperature

−65°C to + 150°C

Human Body Model

2500V

ESD Susceptibility(5)

Machine Model

250V

(1)

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

which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the

Electrical Characteristics. The specified specifications apply only for the test conditions listed. Some performance characteristics may

degrade when the device is not operated under the listed test conditions.

(2)

When the input voltage (VI) at any pin exceeds the power supply (VI < GND or VI > V

+), the current at that pin should be limited to 5mA.

The 20mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input

current of 5mA to four. Under normal operating conditions the maximum current that pins 2, 4 or 5 can handle is limited to 5mA each.

(3)

The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature),

θJA (junction to ambient thermal resistance) and TA (ambient temperature). The maximum allowable power dissipation at any

temperature is PD = (TJmax–TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For this device,

TJmax = 150°C. For this device the typical thermal resistance (θJA) of the different package types when board mounted refer to Table 2

(4)

See http://www.ti.com/packaging for other recommendations and methods of soldering surface mount devices.

(5)

The human body model is a 100pF capacitor discharge through a 1.5k

Ω resistor into each pin. The machine model is a 200pF capacitor

discharged directly into each pin.

Table 2.

Package Type

θJA

SOT23-5, DBV

250°C/W

Operating Ratings

(1)

Specified Temperature Range

TMIN ≤ TA ≤ TMAX

LM27CIM

−40°C ≤ TA ≤ +150°C

Positive Supply Voltage (V+)

+2.7V to +5.5V

Maximum VOUT

+5.5V

(1)

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

which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the

Electrical Characteristics. The specified specifications apply only for the test conditions listed. Some performance characteristics may

degrade when the device is not operated under the listed test conditions.

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