LM3674

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SNVS405E – DECEMBER 2005 – REVISED SEPTEMBER 2006

Absolute Maximum Ratings

(1)

−0.2V to 6.0V

EN, FB, SW Pin:

(GND

−0.2V) to

Continuous Power Dissipation

Internally Limited

+125°C

Storage Temperature Range

−65°C to +150°C

Maximum Lead Temperature

260°C

(Soldering, 10 sec.)

Human Body model: All Pins

2 kV

Machine Model: All Pins

200V

(1)

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

which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed

performance limits and associated test conditions, see the Electrical Characteristics tables.

(2)

The Human body model is a 100 pF capacitor discharged through a 1.5 k

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

capacitor discharged directly into each pin (MIL-STD-883 3015.7). National Semiconductor recommends that all intergrated circuits be

handled with appropriate precautions. Failure to observe proper ESD handling techniques can result in damage.

Operating Ratings

(1) (2)

2.7V to 5.5V

Recommended Load Current

0A to 600 mA

−30°C to +125°C

−30°C to +85°C

(1)

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

which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed

performance limits and associated test conditions, see the Electrical Characteristics tables.

(2)

All voltages are with respect to the potential at the GND pin.

(3)

Input voltage range recommended for ideal applications performance for the specified output voltages are given below

Thermal Properties

Junction-to-Ambient Thermal Resistance (

Junction-to-Ambient Thermal Resistance (

layer board (Note 6)

layer board (Note 6)

250°C/W

130°C/W

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