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Products > Analog - Regulators > Linear Regulators - Low Dropout Voltage > Positive Voltage - Adjustable > LM1084

LM1084 Product Folder

5A Low Dropout Positive Regulators

Generic P/N 1084

General
Description

Package
& Models

Samples
& Pricing

Reliability
Metrics

Application
Notes

Parametric Table

Parametric Table

Temperature Min (deg C)	-40
Temperature Max (deg C)	125
Multiple Output Capability	No
On/Off Pin	No
Error Flag	No
InputMin Voltage (Volt)	2.60
InputMax Voltage (Volt)	29
Output Current (mA)	5000

Dropout Voltage (Volt)	1.30
Quiescent Current (mA)	5
SecondaryOutput Voltage (Volt)	-
SecondaryOutput Current (Amp)	-
RegType	LDO
Output Min (Volt)	1.25
Output Max (Volt)	27.50
Watchdog	No

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM1084 5A Low Dropout Positive Regulators	359 Kbytes	9-Sep-02	View Online	Download	Receive via Email
LM1084 5A Low Dropout Positive Regulators (JAPANESE)	187 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM1084IT-12

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IT-12

3-5 weeks

75000

LM1084IT-3.3

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IT-3.3

4-6 weeks

45000

LM1084IT-5.0

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IT-5.0

3-5 weeks

45000

LM1084IT-ADJ

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IT-ADJ

4-6 weeks

45000

LM1084IS-12

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IS-12

13 weeks

0

LM1084IS-3.3

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IS-3.3

13 weeks

0

LM1084IS-5.0

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IS-5.0

13 weeks

0

LM1084IS-ADJ

3

Full production

N/A

N/A

1K+

$0.75

rail
of
45

NSUZXYTT
LM1084
IS-ADJ

13 weeks

0

LM1084ISX-12

3

Full production

N/A

N/A

1K+

$0.75

reel
of
500

NSUZXYTT
LM1084
IS-12

13 weeks

0

LM1084ISX-3.3

3

Full production

N/A

N/A

1K+

$0.75

reel
of
500

NSUZXYTT
LM1084
IS-3.3

13 weeks

0

LM1084ISX-5.0

3

Full production

N/A

N/A

1K+

$0.75

reel
of
500

NSUZXYTT
LM1084
IS-5.0

13 weeks

0

LM1084ISX-ADJ

3

Full production

N/A

N/A

1K+

$0.75

reel
of
500

NSUZXYTT
LM1084
IS-ADJ

14 weeks

0

LM1084I-ADJ MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

General Description

The LM1084 is a series of low dropout voltage positive regulators with a maximum dropout of 1.5V at 5A of load current. It has the same pin-out as National Semiconductor's industry standard LM317.

The LM1084 is available in an adjustable version, which can set the output voltage with only two external resistors. It is also available in three fixed voltages: 3.3V, 5.0V and 12.0V. The fixed versions intergrate the adjust resistors.

The LM1084 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown.

The LM1084 series is available in TO-220 and TO-263 packages. Refer to the LM1085 for the 3A version, and the LM1086 for the 1.5A version.

Features

Available in 3.3V, 5.0V, 12V and Adjustable Versions
Current Limiting and Thermal Protection

Output Current	5A
Industrial Temperature Range	-40°C to 125°C
Line Regulation	0.015% (typical)
Load Regulation	0.1% (typical)

Applications

Post Regulator for Switching DC/DC Conveter
High Efficiency Linear Regulators
Battery Charger

Reliability Metrics

Part Number	Process	Early Failure Rate - Rejects	Sample Size (EFR)	PPM *	Rel. Rejects	Device Hours	Long Term Failure Rates (FITS)	MTTF
LM1084I-ADJ MDC	LB300	0	17700	0	0	1100000	4	311012542
LM1084IS-12	LB300	0	17700	0	0	1100000	4	311012542
LM1084IS-3.3	LB300	0	17700	0	0	1100000	4	311012542
LM1084IS-5.0	LB300	0	17700	0	0	1100000	4	311012542
LM1084IS-ADJ	LB300	0	17700	0	0	1100000	4	311012542
LM1084ISX-12	LB300	0	17700	0	0	1100000	4	311012542
LM1084ISX-3.3	LB300	0	17700	0	0	1100000	4	311012542
LM1084ISX-5.0	LB300	0	17700	0	0	1100000	4	311012542
LM1084ISX-ADJ	LB300	0	17700	0	0	1100000	4	311012542
LM1084IT-12	LB300	0	17700	0	0	1100000	4	311012542
LM1084IT-3.3	LB300	0	17700	0	0	1100000	4	311012542
LM1084IT-5.0	LB300	0	17700	0	0	1100000	4	311012542
LM1084IT-ADJ	LB300	0	17700	0	0	1100000	4	311012542

For more information on Reliablitity Metrics, please click here.

Design Tools

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM108X Qualification Package	1455 Kbytes	24-Jun-1999	View Online	Download	Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Application Notes

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
AN-1148: Application Note 1148 Linear Regulators: Theory of Operation and Compensation	200 Kbytes	25-Sep-02	View Online	Download	Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 15-Jan-2004]