LM2596 datasheet(3/8 Pages) HTC

3 / 8 page

3.0A, 150kHz, Step-Down Switching Regulator

LM2596

OPERATING RATINGS (Operating Ratings indicate conditions for which the device is intended to be functional,

but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical

Characteristics.)

ELECTRICAL CHARACTERISTICS / SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 2)

(Unless otherwise specified, Vin = 12V for the 3.3V, 5.0V, and Adjustable version, Vin = 25V for the 12V versio

ILoad = 500 mA. For typical values TJ = 25°C, for min/max values TJ is the operating junction temperature

range that applies [Note 2], unless otherwise noted.)

LM2596-3.3V ([Note 1] Test Circuit Figure 2)

LM2596-5.0V ([Note 1] Test Circuit Figure 2)

LM2596-12V ([Note 1] Test Circuit Figure 2)

LM2596-ADJ ([Note 1] Test Circuit Figure 2)

Efficiency (Vin=12V, ILOAD=3.0A, Vout=5.0V)

TJ=25℃

TJ= -40℃ ~ +125℃

Efficiency (Vin=12V, ILOAD=3.0A)

Output Voltage (Vin = 25V, ILOAD=0.5A, TJ=25℃)

Efficiency (Vin=12V, ILOAD=3.0A)

TJ=25℃

-40 to +125

℃

Operating Junction Temperature Range

Supply Voltage

Symbol

Vin

Rating

Value

Unit

HTC

−

3 −

Output Voltage (8.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A

Vout

Output Voltage (Vin = 12V, ILOAD=0.5A, TJ=25℃)

Characteristics

TJ=25℃

TJ= -40℃ ~ +125℃

Efficiency (Vin=12V, ILOAD=3.0A)

Output Voltage (Vin = 12V, ILOAD=0.5A, TJ=25℃)

Output Voltage (6.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A

Vout

Unit

Symbol

Vout

3.234

3.3

3.366

Min

TYP

Max

3.432

3.465

3.168

3.135

3.3

-73

4.8

5.0

5.2

4.75

5.25

Vout

4.9

5.0

5.1

-80

Vout

11.76

12.24

Output Voltage (15V≤Vin≤40V, 0.5A≤ILOAD≤3.0A

Vout

TJ=25℃

11.52

12.48

TJ= -40℃ ~ +125℃

11.4

12.6

-90

Feedback Voltage (Vin=12V, ILOAD=0.5A, TJ=25℃)

Vout

1.217

1.23

1.243

Feedback Voltage(8.0V≤Vin≤40V, 0.5A≤ILOAD≤3.0A, Vout=5.0V)

Vout

1.193

1.23

1.267

1.18

1.28

-73

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