LM2576T-ADJ datasheet(21/28 Pages) ONSEMI

Nome de Peças	LM2576T-ADJ

Descrição Electrónicos	3.0 A, 15 V, Step?묭own Switching Regulator

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Fabricante Electrônico	ONSEMI [ON Semiconductor]

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LM2576

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21

Figure 32. Undervoltage Lockout Circuit for

Buck Converter

R2

10 k

Z1

1N5242B

R1

10 k

Q1

2N3904

R3

47 k

Vth ≈ 13 V

Cin

100

mF

LM2576−XX

1

3

5GN

D

ON/OFF

+Vin

NOTE: This picture does not show the complete circuit.

The following formula is used to obtain the peak inductor

current:

where ton +

|V

O

|

V

in )

|V

O

|

x

1.0

fosc

, and fosc + 52 kHz.

I

peak [

I

Load

(V

in )

|V

O

|)

V

in

)

V

in

xton

2L

1

Under normal continuous inductor current operating

conditions, the worst case occurs when Vin is minimal.

Figure 33. Undervoltage Lockout Circuit for

Buck−Boost Converter

R2

15 k

Z1

1N5242B

R1

15 k

Q1

2N3904

R3

47 k

Vth ≈ 13 V

Cin

100

mF

LM2576−XX

1

3

5GN

D

ON/OFF

+Vin

Vout

NOTE: This picture does not show the complete circuit.

Adjustable Output, Low−Ripple Power Supply

A 3.0 A output current capability power supply that

features an adjustable output voltage is shown in Figure 34.

This regulator delivers 3.0 A into 1.2 V to 35 V output.

The input voltage ranges from roughly 3.0 V to 40 V. In order

to achieve a 10 or more times reduction of output ripple, an

additional L−C filter is included in this circuit.

Figure 34. 1.2 to 35 V Adjustable 3.0 A Power Supply with Low Output Ripple

D1

1N5822

L1

150

mH

Output

2

4

Feedback

R2

50 k

R1

1.21 k

L2

20

mH

Output

Voltage

1.2 to 35 V @ 3.0 A

Optional Output

Ripple Filter

40 V Max

Unregulated

DC Input

Cout

2200

mF

C1

100

mF

Cin

100

mF

LM2574−Adj

1

5

3ON/OFF

GN

D

+Vin

Nº de peça semelhante - LM2576T-ADJ

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
National Semiconductor ...	LM2576T-ADJ	572Kb / 14P	Simple Switcher??3 Amp Step-Down Voltage Regulator
Texas Instruments	LM2576T-ADJ	4Mb / 46P	[Old version datasheet] LM2576xx Series SIMPLE SWITCHER® Power Converter 3-A Step-Down Voltage Regulator REVISED MARCH 2023
National Semiconductor ...	LM2576T-ADJ	639Kb / 24P	SIMPLE SWITCHER 3A Step-Down Voltage Regulator
ON Semiconductor	LM2576T-ADJ	417Kb / 26P	EASY SWITCHER 3.0 A STEP.DOWN VOLTAGE REGULATOR June, 2004 ??Rev. 5
Motorola, Inc	LM2576T-ADJ	287Kb / 28P	Easy Switcher 3.0A Step-Down Voltage Regulator

More results

Descrição semelhante - LM2576T-ADJ

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
ON Semiconductor	LM2576T-5G	253Kb / 28P	3.0 A, 15 V, Step?묭own Switching Regulator January, 2006 ??Rev. 8
IK Semicon Co., Ltd	IL2576-XX	612Kb / 10P	3.0 A, 15 V, Step-Down Switching Regulator
ON Semiconductor	LM2575	364Kb / 28P	1.0 A, Adjustable Output Voltage, Step?묭own Switching Regulator November, 2005 ??Rev. 8
ON Semiconductor	LM2574	296Kb / 26P	0.5 A, Adjustable Output Voltage, Step?묭own Switching Regulator August, 2006 ??Rev. 8
IK Semicon Co., Ltd	IL2575-XX	761Kb / 17P	1.0 A, 15 V, Step-Down Switching Regulator
ON Semiconductor	LM2596	455Kb / 25P	3.0 A, Step-Down Switching Regulator November, 2008 ??Rev. 0
	LM2596	455Kb / 25P	3.0 A, Step-Down Switching Regulator November, 2008 ??Rev. 0
	NCP3123	2Mb / 41P	Dual 3.0 A, Step-Down DC/DC Switching Regulator October, 2008 ??Rev. 1
	NCP3121	2Mb / 41P	Dual 3.0 A, Step-Down DC/DC Switching Regulator October, 2008 ??Rev. 1
Texas Instruments	LM25010	1Mb / 31P	[Old version datasheet] 42-V, 1-A Step-Down Switching Regulator

More results

LM2576T-ADJ Folha de dados(PDF) 21 Page - ON Semiconductor

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