LMS1587CSX-1.5 datasheet(5/8 Pages) NSC

No. de pieza	LMS1587CSX-1.5

Descripción Electrónicos	5A and 3A Low Dropout Fast Response Regulators

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Electrical Characteristics (Continued)

Typicals and limits appearing in normal type apply for T

J = 25˚C. Limits appearing in Boldface type apply over the entire junc-

tion temperature range for operation, 0˚C to 125˚C for commercial grade and −40˚C to 125˚C for industrial grade.

Symbol

Parameter

Conditions

Min

(Note 5)

Typ

(Note 4)

Max

(Note 5)

Units

I

LIMIT

Current Limit

LMS1585A-ADJ/LMS1585A-3.3/LMS1585A-1.5

V

IN−VOUT = 5.5V

5.0

6.6

A

LMS1587-ADJ/LMS1587-3.3/LMS1587-1.5

V

IN−VOUT = 5.5V

3.1

4.3

A

Minimum Load

Current (Note 7)

LMS1585A/87-ADJ

1.5V

≤ V

IN−VOUT

≤ 5.75V

2.0

10.0

mA

Quiescent Current

LMS1585A-3.3/LMS1587-3.3/

LMS1585A-1.5/LMS1587-1.5

V

IN = 5V

7.0

13.0

mA

Thermal Regulation

T

A = 25˚C, 30ms Pulse

0.003

%/W

Ripple Rejection

LMS1585A-ADJ

f

RIPPLE = 120Hz, VIN−VOUT = 3V,

I

OUT = 5A, COUT = 25µF Tantalum

72

dB

LMS1585A-1.5

f

RIPPLE = 120Hz, COUT = 25µF Tantalum,

I

OUT = 5A, VIN = 4.5V

60

72

dB

LMS1585A-3.3

f

RIPPLE = 120Hz, COUT = 25µF Tantalum,

I

OUT = 5A, VIN = 6.3V

72

dB

LMS1587-ADJ

f

RIPPLE = 120Hz, VIN−VOUT = 3V, IOUT =3A

C

OUT = 25µF Tantalum

72

dB

LMS1587-1.5

f

RIPPLE = 120Hz, COUT = 25µF Tantalum,

I

OUT = 3A, VIN = 4.5V

60

72

dB

LMS1587-3.3

f

RIPPLE = 120Hz, COUT = 25µF Tantalum,

I

OUT = 3A, VIN = 6.3V

72

dB

Adjust Pin Current

55

120

µA

Adjust Pin Current

10mA

≤ I

OUT

≤ I

FULLLOAD,

1.5V

≤ V

IN−VOUT

≤ 5.75V (Note 8)

0.2

µA

Temperature Stability

0.5

%

Long Term Stability

T

A = 125˚C, 1000Hrs

0.03

%

RMS Output Noise

(% of V

OUT)

10Hz

≤ f ≤ 10kHz

0.003

%

Thermal Resistance

Junction-to-Case

3-Lead TO-263: Control/Output Section

3-Lead TO-220: Control/Output Section

0.65/2.7

˚C/W

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2: The maximum power dissipation is a function of TJ(max) , θJA, and TA. The maximum allowable power dissipation at any ambient temperature

is PD =(TJ(max)–T A)/θJA. All numbers apply for packages soldered directly into a PC board.

Note 3: For testing purposes, ESD was applied using human body model, 1.5k

Ω in series with 100pF.

Note 4: Typical Values represent the most likely parametric norm.

Note 5: All limits are guaranteed by testing or statistical analysis.

Note 6: Load and line regulation are measured at constant junction temperature, and are guaranteed up to the maximum power dissipation of 30W. Power

dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output

range.

Note 7: The minimum output current required to maintain regulation.

Note 8: IFULLLOAD is 5A for LMS1585A and 3A for LMS1587.

Note 9: Consult factory for other fixed voltage options.

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LMS1587CSX-1.5 Datasheet(PDF) 5 Page - National Semiconductor (TI)

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