LT1585CM-3.3#TRPBF datasheet, PDF

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LT1585CM-3.3#TRPBF: DescriptionIC REG LINEAR 3.3V 4.6A D2PAK-3; CategoryPower/power management The power supply circuit; File Size215KB，16 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LT1585CM-3.3#TRPBF Overview

IC REG LINEAR 3.3V 4.6A D2PAK-3

LT1585CM-3.3#TRPBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	D2PAK
package instruction	TO-263,
Contacts	3
Manufacturer packaging code	M
Reach Compliance Code	not_compliant
ECCN code	EAR99
Maximum drop-back voltage 1	1.4 V
Maximum input voltage	7 V
Minimum input voltage	4.75 V
JESD-30 code	R-PSSO-G2
JESD-609 code	e3
length	10.2235 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	2
Working temperatureTJ-Max	150 °C
Working temperature TJ-Min
Maximum output current 1	4.6 A
Maximum output voltage 1	3.365 V
Minimum output voltage 1	3.235 V
Nominal output voltage 1	3.3 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-263
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	4.572 mm
surface mount	YES
Terminal surface	Tin (Sn) - with Nickel (Ni) barrier
Terminal form	GULL WING
Terminal pitch	2.54 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	30
width	8.89 mm

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LT1584/LT1585/LT1587

7A, 4.6A, 3A Low Dropout

Fast Response

Positive Regulators

Adjustable and Fixed

FEATURES

DESCRIPTIO

Fast Transient Response

Guaranteed Dropout Voltage at Multiple Currents

Load Regulation: 0.05% Typical

Trimmed Current Limit

On-Chip Thermal Limiting

Standard 3-Pin Power Package

APPLICATIO S

Pentium

Processor Supplies

PowerPC

Supplies

Other 2.5V to 3.6V Microprocessor Supplies

Low Voltage Logic Supplies

Battery-Powered Circuitry

Post Regulator for Switching Supply

Adjustable

3.3V Fixed

3.38V Fixed

3.45V Fixed

3.6V Fixed

The LT

1584/LT1585/LT1587 are low dropout three-

terminal regulators with 7A, 4.6A and 3A output current

capability, respectively. Design has been optimized for low

voltage applications where transient response and mini-

mum input voltage are critical. Similar to the LT1083/4/5

family, it has lower dropout voltage and faster transient

response. These improvements make it ideal for low volt-

age microprocessor applications requiring a regulated

2.5V to 3.6V output with an input supply below 7V.

Current limit is trimmed to ensure specified output current

and controlled short-circuit current. On-chip thermal lim-

iting provides protection against any combination of over-

load that would create excessive junction temperatures.

The LT1585/LT1587 are available in both the through-hole

and surface mount versions of the industry standard 3-pin

TO-220 power package. The LT1584 is available in the

through-hole 3-pin TO-220 power package.

, LTC and LT are registered trademarks of Linear Technology Corporation.

Pentium is a trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.

LT1585/7CM, LT1584/5/7CT

LT1585/7CM-3.3, LT1584/5/7CT-3.3

LT1585CM-3.38, LT1584/5CT-3.38

LT1585/7CM-3.45, LT1584/5/7CT-3.45

LT1585/7CM-3.6, LT1584/5/7CT-3.6

TYPICAL APPLICATIO

LT1584-3.3

LT1585-3.3

LT1587-3.3

10µF

Dropout Voltage vs Output Current

1.5

1.4

3.3V, 7A, 4.6A, 3A Regulator

INPUT/OUTPUT DIFFERENTIAL (V)

≥

4.75V

3.3V

7A, 4.6A, 3A

C2*

SOLID

TANTALUM

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

OUTPUT CURRENT (A)

1585 TA02

* REQUIRED FOR STABILITY

LT1584: C2 = 22µF,

LT1585/LT1587: C2 = 10µF

1585 TA01

NOTE: MICROPROCESSOR APPLICATIONS WITH LOAD TRANSIENTS OF 3.8A REQUIRE

OUTPUT DECOUPLING CAPACITANCE > 1300µF ON FIXED VOLTAGE PARTS TO ACHIEVE

< 50mV OF DEVIATION FROM NOMINAL OUTPUT. CONSULT FACTORY FOR DETAILS

FULL LOAD

158457a

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