LM2576HVT-ADJ datasheet(4/7 Pages) HTC

No. de pieza	LM2576HVT-ADJ

Descripción Electrónicos	3A, 52kHz, Step-down Switching Regulator

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Fabricante Electrónico	HTC [HTC Korea TAEJIN Technology Co.]

Página de inicio	http://www.htckorea.co.kr

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4 / 7 page

3A, 52kHz, Step-down Switching Regulator

LM2576HV

Feb. 2014 – R1.0

- 4 -

HTC

ELECTRICAL CHARACTERISTICS

Specifications with standard type face are for TJ = 25℃ and those with boldface type apply over full operating temperature

range. Unless otherwise specified, VIN =12V for the 3.3V, 5V, and Adjustable version, VIN =25V for the 12V version, and

VIN =30V for the 15V version, ILOAD =500mA.

PARAMETER

SYMBOL

TEST CONDITION

(Note 2)

MIN.

TYP.

MAX.

UNIT

SYSTEM PARAMETERS

(Note 3)

Feedback Voltage

VFB

LM2576HV-ADJ

VIN =12V, ILOAD =0.5A

1.217

1.230

1.243

V

0.5A ≤ ILOAD ≤ 3A ,

8V ≤ VIN ≤ 55V

1.193

1.180

1.230

1.273

1.286

V

Output Voltage

VO

LM2576HV-3.3

VIN =12V, ILOAD =0.5A

3.234

3.300

3.366

V

0.5A ≤ ILOAD ≤ 3A ,

6V ≤ VIN ≤ 55V

3.168

3.135

3.300

3.450

3.482

V

LM2576HV-5.0

VIN =12V, ILOAD =0.5A

4.900

5.000

5.100

V

0.5A ≤ ILOAD ≤ 3A ,

8V ≤ VIN ≤ 55V

4.800

4.750

5.000

5.225

5.275

V

LM2576HV-12

VIN =25V, ILOAD =0.5A

11.76

12.00

12.24

V

0.5A ≤ ILOAD ≤ 3A ,

15V ≤ VIN ≤ 55V

11.52

11.40

12.00

12.54

12.66

V

LM2576HV-15

VIN =25V, ILOAD =0.5A

14.70

15.00

15.30

V

0.5A ≤ ILOAD ≤ 3A ,

18V ≤ VIN ≤ 55V

14.40

14.25

15.00

15.68

15.83

V

Efficiency

LM2576HV-ADJ

VIN =12V, ILOAD =3A,

Vo = 5V

77

%

LM2576HV-3.3

VIN =12V, ILOAD =3A

75

%

LM2576HV-5.0

VIN =12V, ILOAD =3A

77

%

LM2576HV-12

VIN =15V, ILOAD =3A

88

%

LM2576HV-15

VIN =18V, ILOAD =3A

88

%

DEVICE PARAMETERS

Feedback Bias

Current

Ib

VO = 5V (Adjustable Version Only)

50

100

500

nA

Oscillator Frequency

fO

(Note 8)

47

42

52

58

63

kHZ

Saturation Voltage

VSAT

IO = 3A (Note 4)

1.4

1.55

1.70

V

Max Duty Cycle(ON)

DC

(Note 5)

93

98

%

Current Limit

ICL

(Note 4, 8)

4.2

3.5

5.8

6.9

7.5

A

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