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Absolute Maximum Ratings

(1)

Package Thermal Data

(1)

Recommended Operating Conditions

LM2575

1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR

SLVS569D – JANUARY 2005 – REVISED JULY 2005

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Supply voltage

42

V

ON/OFF pin input voltage

–0.3

V

Output voltage to GND (steady state)

–1

V

Maximum junction temperature

150

°C

Storage temperature range

–65

150

°C

(1)

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating

conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

PACKAGE

BOARD

θ

JC

θ

JCB

θ

JA

PDIP (N)

High K, JESD 51-7

51

°C/W

67

°C/W

TO-263 (KTT)

High K, JESD 51-5

TBD

TBD

(1)

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Supply voltage

4.75

40

V

Operating virtual junction temperature

–40

125

°C

4