LT1581-2.5 datasheet(2/12 Pages) LINER

Part #	LT1581-2.5

Description	10A, Very Low Dropout Regulators

Download	12 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

Logo

2 / 12 page

2

LT1581/LT1581-2.5

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

PRECONDITIONING

100% Thermal Limit Functional Test

Consult factory for Industrial and Military grade parts.

LT1581CT7

LT1581CT7-2.5

ORDER PART

NUMBER

(Note 1)

VPOWER Input Voltage ................................................ 6V

VCONTROL Input Voltage ........................................... 13V

Operating Junction Temperature Range

Control Section ...................................... 0

°C to 125°C

Power Transistor ................................... 0

°C to 150°C

Storage Temperature ............................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec) .................. 300

°C

*PIN2 = NC FOR LT1581CT7, GND FOR LT1581CT7-2.5

T7 PACKAGE

7-LEAD PLASTIC TO-220

FRONT VIEW

TAB IS

OUTPUT

NC

VCONTROL

VPOWER

OUTPUT

SENSE

NC/GND*

ADJUST

7

6

5

4

3

2

1

θJA = 50°C/ W

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 2)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Output Voltage:

LT1581-2.5

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA

2.485

2.500

2.515

V

VCONTROL = 4V to 12V, VPOWER = 3V to 5.5V, ILOAD = 0mA to 4A

q

2.475

2.500

2.525

V

VCONTROL = 4V to 12V, VPOWER = 3.3V to 5.5V, ILOAD = 0mA to 10A

q

2.475

2.500

2.525

V

Reference Voltage:

LT1581

VCONTROL = 2.75V, VPOWER = 2V, ILOAD = 10mA

1.243

1.250

1.257

V

(VADJ = 0V)

VCONTROL = 2.7V to 12V, VPOWER = 1.75V to 5.5V, ILOAD = 0mA to 4A

q

1.237

1.250

1.263

V

VCONTROL = 2.7V to 12V, VPOWER = 2.05V to 5.5V, ILOAD = 0mA to 10A q

1.237

1.250

1.263

V

Line Regulation: LT1581-2.5

VCONTROL = 3.65V to 12V, VPOWER = 3V to 5.5V, ILOAD = 10mA

q

13

mV

LT1581

VCONTROL = 2.5V to 12V, VPOWER = 1.75V to 5.5V, ILOAD = 10mA

q

13

mV

Load Regulation: LT1581-2.5

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA to 10A

q

110

mV

LT1581 (VADJ = 0V)

VCONTROL = 2.75V, VPOWER = 2.1V, ILOAD = 10mA to 10A

q

15

mV

Minimum Load Current: LT1581

VCONTROL = 5V, VPOWER = 3.3V, VADJ = 0V (Note 4)

q

310

mA

Control Pin Current: LT1581-2.5

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 100mA

q

510

mA

(Note 5)

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 4A

q

20

50

mA

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 7A

q

40

100

mA

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 10A

q

70

170

mA

Control Pin Current: LT1581

VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 100mA

q

510

mA

(Note 5)

VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 4A

q

20

50

mA

VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 7A

q

40

100

mA

VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 10A

q

70

170

mA

Ground Pin Current: LT1581-2.5

VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA

q

610

mA

Adjust Pin Current: LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 10mA

q

60

120

µA

Current Limit:

LT1581-2.5

VCONTROL = 5V, VPOWER = 3.3V, ∆VOUT = 100mV

q

10.1

11

A

LT1581 (VADJ = 0V)

VCONTROL = 2.75V, VPOWER = 2.05V, ∆VOUT = 100mV

q

10.1

11

A

Ripple Rejection: LT1581-2.5

VCONTROL = VPOWER = 5V Avg, VRIPPLE = 1VP-P, fRIPPLE = 120Hz,

55

80

dB

IOUT = 4A, TJ = 25°C

LT1581

VCONTROL = VPOWER = 3.75V Avg, VRIPPLE = 1VP-P, fRIPPLE = 120Hz,

60

80

dB

VADJ = 0V, IOUT = 4A, TJ = 25°C

Thermal Regulation

30ms Pulse

0.004

0.020

%/W

Thermal Resistance, Junction-to-Case

Control Circuitry/Power Transistor

0.65/2.50

°C/W

Similar Part No. - LT1581-2.5

Manufacturer	Part #	Datasheet	Description
Linear Technology	LT1581-2.5	264Kb / 12P	10A, Very Low Dropout Regulators

More results

Similar Description - LT1581-2.5

Manufacturer	Part #	Datasheet	Description
Linear Technology	LT1581	241Kb / 12P	10A, Very Low Dropout Regulators
Linear Technology	LT1581	264Kb / 12P	10A, Very Low Dropout Regulators
Advanced Monolithic Sys...	AMS1510	77Kb / 9P	10A LOW DROPOUT VOLTAGE REGULATORS
	AMS1510	90Kb / 9P	10A LOW DROPOUT VOLTAGE REGULATORS
	AMS1082	71Kb / 8P	10A LOW DROPOUT VOLTAGE REGULATORS
	AMS1082	88Kb / 8P	10A LOW DROPOUT VOLTAGE REGULATORS
Microsemi Corporation	LX8610-XX	90Kb / 6P	1A BiCMOS Very Low Dropout Regulators
Advanced Monolithic Sys...	AMS2501	66Kb / 8P	1A VERY LOW DROPOUT VOLTAGE REGULATORS
Microsemi Corporation	LX8630-XX	135Kb / 9P	3A BiCMOS Very Low Dropout Regulators
Advanced Monolithic Sys...	AMS2501	63Kb / 8P	1A VERY LOW DROPOUT VOLTAGE REGULATORS

More results

LT1581-2.5 Datasheet(PDF) 2 Page - Linear Technology

LT1581-2.5 Datasheet(HTML) 2 Page - Linear Technology

Similar Part No. - LT1581-2.5

Similar Description - LT1581-2.5

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL