LM2672LDX-12 datasheet(4/16 Pages) TI1

部件名	LM2672LDX-12

功能描述	Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features

Download	16 Pages

Scroll/Zoom	100%

制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

标志

4 / 16 page

TI Confidential - NDA Restrictions

LM2731

SNVS217F – MAY 2004 – REVISED NOVEMBER 2012

www.ti.com

Electrical Characteristics

Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range

(

−40°C ≤ TJ ≤ +125°C). Unless otherwise specified: VIN = 5V, VSHDN = 5V, IL = 0A.

Parameter

Test Conditions

Min(1)

Typ(2)

Max(1)

Units

VIN

Input Voltage

2.7

14

V

VOUT (MIN)

Minimum Output Voltage

RL = 43Ω

VIN = 2.7V

5.4

7

V

Under Load

X Option(3)

VIN = 3.3V

8

10

VIN = 5V

16

RL = 43Ω

VIN = 2.7V

6

7.5

Y Option(3)

VIN = 3.3V

8.75

11

VIN = 5V

15

RL = 15Ω

VIN = 2.7V

3.75

5

X Option(3)

VIN = 3.3V

5

6.5

VIN = 5V

10

RL = 15Ω

VIN = 2.7V

4

5

Y Option(3)

VIN = 3.3V

5.5

7

VIN = 5V

10

ISW

Switch Current Limit

See(4)

1.8

2

A

1.4

RDS(ON)

Switch ON Resistance

ISW = 100 mA

260

400

m

Ω

Vin = 5V

500

ISW = 100 mA

300

450

Vin = 3.3V

550

SHDNTH

Shutdown Threshold

Device ON

1.5

V

Device OFF

0.50

ISHDN

Shutdown Pin Bias Current VSHDN = 0

0

µA

VSHDN = 5V

0

2

VFB

Feedback Pin Reference

VIN = 3V

1.205

1.230

1.255

V

Voltage

IFB

Feedback Pin Bias Current

VFB = 1.23V

60

500

nA

IQ

Quiescent Current

VSHDN = 5V, Switching "X"

2

3.0

mA

VSHDN = 5V, Switching "Y"

1.0

2

VSHDN = 5V, Not Switching

400

500

µA

VSHDN = 0

0.024

1

ΔVFB/ΔVIN

FB Voltage Line

2.7V

≤ VIN ≤ 14V

0.02

%/V

Regulation

FSW

Switching Frequency(5)

“X” Option

1

1.6

1.85

MHz

“Y” Option

0.40

0.60

0.8

DMAX

Maximum Duty Cycle(5)

“X” Option

78

86

%

“Y” Option

88

93

IL

Switch Leakage

Not Switching VSW = 5V

1

µA

(1)

Limits are guaranteed by testing, statistical correlation, or design.

(2)

Typical values are derived from the mean value of a large quantity of samples tested during characterization and represent the most

likely expected value of the parameter at room temperature.

(3)

L = 10 µH, COUT = 4.7 µF, duty cycle = maximum

(4)

Switch current limit is dependent on duty cycle (see Typical Performance Characteristics).

(5)

Guaranteed limits are the same for Vin = 3.3V input.

4

Submit Documentation Feedback

Product Folder Links: LM2731

类似零件编号 - LM2672LDX-12

制造商	部件名	数据表	功能描述
National Semiconductor ...	LM2672LDX-12	616Kb / 26P	SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
	LM2672LDX-12	475Kb / 25P	SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
	LM2672LDX-12	647Kb / 26P	SIMPLE SWITCHER Power Converter High Efficiency 1A

More results

类似说明 - LM2672LDX-12

制造商	部件名	数据表	功能描述
National Semiconductor ...	LM2672	475Kb / 25P	SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
	LM2672	415Kb / 25P	SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
	LM2672	616Kb / 26P	SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
	LM2672EP	525Kb / 25P	Enhanced Plastic SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
	LM2671	972Kb / 26P	SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
National Instruments Co...	LM2671M-33	641Kb / 24P	SIMPLE SWITCHER짰 Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
National Semiconductor ...	LM2671	610Kb / 24P	SIMPLE SWITCHER짰 Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
	LM2675	912Kb / 26P	SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator
	LM2675_0506	913Kb / 26P	SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator
Texas Instruments	LM2675	1Mb / 30P	[Old version datasheet] SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator