LM2575EP datasheet(5/26 Pages) NSC

5 / 26 page

Absolute Maximum Ratings (Note 4)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Maximum Supply Voltage

LM2575EP

45V

LM2575HVEP

63V

ON /OFF Pin Input Voltage

−0.3V

≤ V ≤ +V

Output Voltage to Ground

(Steady State)

−1V

Power Dissipation

Internally Limited

Storage Temperature Range

−65˚C to +150˚C

Maximum Junction Temperature

150˚C

Minimum ESD Rating

(C = 100 pF, R = 1.5 k

Ω)2 kV

Lead Temperature

(Soldering, 10 sec.)

260˚C

Operating Ratings

Temperature Range

LM2575EP/LM2575HVEP

−40˚C

≤ T

≤ +125˚C

Supply Voltage

LM2575EP

40V

LM2575HVEP

60V

LM2575-3.3EP, LM2575HV-3.3EP

Electrical Characteristics (Note 16)

Specifications with standard type face are for T

J = 25˚C, and those with boldface type apply over full Operating Tempera-

ture Range .

Symbol

Parameter

Conditions

Typ

LM2575-3.3EP

Units

(Limits)

LM2575HV-3.3EP

Limit

(Note 5)

SYSTEM PARAMETERS (Note 6) Test Circuit Figure 2

OUT

Output Voltage

IN = 12V, ILOAD = 0.2A

3.3

Circuit of Figure 2

3.234

V(Min)

3.366

V(Max)

OUT

Output Voltage

4.75V

≤ V

≤ 40V, 0.2A ≤ I

LOAD

≤ 1A

3.3

LM2575EP

Circuit of Figure 2

3.168/3.135

V(Min)

3.432/3.465

V(Max)

OUT

Output Voltage

4.75V

≤ V

≤ 60V, 0.2A ≤ I

LOAD

≤ 1A

3.3

LM2575HVEP

Circuit of Figure 2

3.168/3.135

V(Min)

3.450/3.482

V(Max)

Efficiency

IN = 12V, ILOAD =1A

LM2575-5.0EP, LM2575HV-5.0EP

Electrical Characteristics (Note 16)

Specifications with standard type face are for T

J = 25˚C, and those with boldface type apply over full Operating Tempera-

ture Range.

Symbol

Parameter

Conditions

Typ

LM2575-5.0EP

Units

(Limits)

LM2575HV-5.0EP

Limit

(Note 5)

SYSTEM PARAMETERS (Note 6) Test Circuit Figure 2

OUT

Output Voltage

IN = 12V, ILOAD = 0.2A

5.0

Circuit of Figure 2

4.900

V(Min)

5.100

V(Max)

OUT

Output Voltage

0.2A

≤ I

LOAD

≤ 1A,

5.0

LM2575EP

≤ V

≤ 40V

4.800/4.750

V(Min)

Circuit of Figure 2

5.200/5.250

V(Max)

OUT

Output Voltage

0.2A

≤ I

LOAD

≤ 1A,

5.0

LM2575HVEP

≤ V

≤ 60V

4.800/4.750

V(Min)

Circuit of Figure 2

5.225/5.275

V(Max)

LM2575EP 数据表(PDF) 5 Page - National Semiconductor (TI)

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