LM2574N-ADJ datasheet(3/26 Pages) ONSEMI

部品番号	LM2574N-ADJ

部品情報	0.5 A, Adjustable Output Voltage, Step-Down Switching Regulator

Download	26 Pages

Scroll/Zoom	100%

メーカー	ONSEMI [ON Semiconductor]

ホームページ	http://www.onsemi.com

Logo

3 / 26 page

LM2574, NCV2574

www.onsemi.com

3

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).

Rating

Symbol

Value

Unit

Operating Junction Temperature Range

TJ

−40 to +125

°C

Supply Voltage

Vin

40

V

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond

the Recommended Operating Ranges limits may affect device reliability.

SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 16)

ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable

version, Vin = 25 V for the 12 V version, Vin = 30 V for the 15 V version. ILoad = 100 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).

Characteristic

Symbol

Min

Typ

Max

Unit

LM2574−3.3 ([Note 1] Test Circuit Figure 16)

Output Voltage (Vin = 12 V, ILoad = 100 mA, TJ = 25°C)

Vout

3.234

3.3

3.366

V

Output Voltage (4.75 V

≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 A)

Vout

V

TJ = 25°C

3.168

3.3

3.432

TJ = −40 to +125°C

3.135

−

3.465

Efficiency (Vin = 12 V, ILoad = 0.5 A)

η

−

72

−

%

LM2574−5 ([Note 1] Test Circuit Figure 16)

Output Voltage (Vin = 12 V, ILoad = 100 mA, TJ = 25°C)

Vout

4.9

5.0

5.1

V

Output Voltage (7.0 V

≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 A)

Vout

V

TJ = 25°C

4.8

5.0

5.2

TJ = −40 to +125°C

4.75

5.25

Efficiency (Vin = 12 V, ILoad = 0.5 A)

η

−

77

−

%

LM2574−12 ([Note 1] Test Circuit Figure 16)

Output Voltage (Vin = 25 V, ILoad = 100 mA, TJ = 25°C)

Vout

11.76

10

12.24

V

Output Voltage (15 V

≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 A)

Vout

V

TJ = 25°C

11.52

12

12.48

TJ = −40 to +125°C

11.4

−

12.6

Efficiency (Vin = 15 V, ILoad = 0.5 A)

η

−

88

−

%

LM2574−15 ([Note 1] Test Circuit Figure 16)

Output Voltage (Vin = 30 V, ILoad = 100 mA, TJ = 25°C)

Vout

14.7

15

15.3

V

Output Voltage (18 V < Vin < 40 V, 0.1 A < ILoad < 0.5 A)

Vout

V

TJ = 25°C

14.4

15

15.6

TJ = −40 to +125°C

14.25

15.75

Efficiency (Vin = 18 V, ILoad = 0.5 A)

η

−

88

−

%

LM2574 ADJUSTABLE VERSION ([Note 1] Test Circuit Figure 16)

Feedback Voltage Vin = 12 V, ILoad = 100 mA, Vout = 5.0 V, TJ = 25°C

VFB

1.217

1.23

1.243

V

Feedback Voltage 7.0 V

≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 A, Vout = 5.0

V

VFBT

V

TJ = 25°C

1.193

1.23

1.267

TJ = −40 to +125°C

1.18

1.28

Efficiency (Vin = 12 V, ILoad = 0.5 A, Vout = 5.0 V)

η

−

77

−

%

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

1. External components such as the catch diode, inductor, input and output capacitors can affect the switching regulator system performance.

When the LM2574 is used as shown in the Figure 16 test circuit, the system performance will be as shown in the system parameters section

of the Electrical Characteristics.

2. Tested junction temperature range for the LM2574, NCV2574: Tlow = −40°C Thigh = +125°C.

同様の部品番号 - LM2574N-ADJ

メーカー	部品番号	データシート	部品情報
National Semiconductor ...	LM2574N-ADJ	639Kb / 24P	SIMPLE SWITCHER??0.5A Step-Down Voltage Regulator
ON Semiconductor	LM2574N-ADJ	279Kb / 28P	0.5 A, Adjustable Output Voltage, Step-Down Switching Regulator February, 2002 ??Rev. 5
ON Semiconductor	LM2574N-ADJ	296Kb / 26P	0.5 A, Adjustable Output Voltage, Step?묭own Switching Regulator August, 2006 ??Rev. 8
Texas Instruments	LM2574N-ADJ	2Mb / 35P	[Old version datasheet] LM2574/LM2574HV SIMPLE SWITCHER??0.5A Step-Down Voltage Regulator
Texas Instruments	LM2574N-ADJ/NOPB	2Mb / 35P	[Old version datasheet] LM2574/LM2574HV SIMPLE SWITCHER??0.5A Step-Down Voltage Regulator

More results

同様の説明 - LM2574N-ADJ

メーカー	部品番号	データシート	部品情報
ON Semiconductor	LM2574	279Kb / 28P	0.5 A, Adjustable Output Voltage, Step-Down Switching Regulator February, 2002 ??Rev. 5
	LM2574	296Kb / 26P	0.5 A, Adjustable Output Voltage, Step?묭own Switching Regulator August, 2006 ??Rev. 8
	LM2575T-15G	497Kb / 28P	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator June, 2009 ??Rev. 11
	LM2575T-005G	461Kb / 28P	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator June, 2009 ??Rev. 11
	LM2575	497Kb / 28P	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator June, 2009 ??Rev. 11
	LM2575	382Kb / 26P	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator May, 2004 ??Rev. 6
	LM2575T-ADJ	497Kb / 28P	1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator June, 2009 ??Rev. 11
	LM2594	560Kb / 25P	0.5 A, Step-Down Switching Regulator January, 2009 ??Rev. 0
KODENSHI_AUK CORP.	SN317MPI	376Kb / 8P	[ 0.5 A Adjustable Output ] Positive Voltage Regulator
ON Semiconductor	LM2575	364Kb / 28P	1.0 A, Adjustable Output Voltage, Step?묭own Switching Regulator November, 2005 ??Rev. 8