AME AME1084DCDT-3, AME1084DCDT, AME1084DCCS, AME1084DCBT, AME1084CCDT-3, AME1084ACBT, AME1084CCDT, AME1084CCCS, AME1084CCBT, AME1084BCDT-3, AME1084BCDT, AME1084BCCS, AME1084BCBT, AME1084ACDT-3, AME1084ACDT, AME1084ACCS Datasheet

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Analog Microelectronics, Inc.

AME1084

5A Low Dropout

Positive Voltage Regulator

 

 

 

 

 

n General Description

The AME1084 is a 5A low-dropout positive voltage regulator. It is available in fixed and adjustable output voltage versions. Overcurrent and thermal protection are integrated onto the chip. Output current will limit as it reaches the pre-set current or temperature limit. At full rated output current the dropout voltage is 1.4V (max.). AME1084 series regulators provide excellent regulation over line, load and temperature variations.

n Key Features

lLow dropout voltage ¼ 1.4V at 5A

lAdjustable or 3.3V fixed voltage

lLine regulation typically 0.015%

lLoad regulation typically 0.05%

lAdjust pin (ADJ) current less than 90μA

lOvercurrent protection

lThermal protection

lAvailable in TO-220, TO-263, TO-252

n Applications

lHigh Efficiency Linear Regulators

lPost Regulators for Switching Supplies

l5V to 3.3V Voltage Converter

lBattery Charger

n Functional Block Diagram

n Typical Application

 

 

 

Input

 

 

 

 

 

V IN AME1084V O U T

 

 

 

 

GND

 

Current

 

4.75V to 5.25V

10μF Tan

10μF Tan Load

Limiting

 

 

 

 

 

Amplifier

 

 

 

 

Thermal

 

Output

 

 

Protection

 

 

 

 

 

 

 

Figure 2

 

Error

 

ADJ/GND

 

 

Amp.

Bandgap

 

 

 

Reference

 

 

 

Figure 1

1

Analog Microelectronics, Inc.

AME1084

5A Low Dropout

Positive Voltage Regulator

n Pin Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AME 1084

AME1084

 

 

 

1

2

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADJ/GND VOUT

VIN

ADJ/GND VO U T VIN

TO-220 Front View

To-252 Front View

 

AME 1084

1 2 3

AME 1084

1 2 3

ADJ/GND VO U T VIN

ADJ/GND VO U T VIN

TO-263-2 Front View

TO-263-3 Front View

 

2

Analog Microelectronics, Inc.

AME1084

5A Low Dropout

Positive Voltage Regulator

 

 

 

 

 

n Ordering Information

P a rt Num be r

M a rking

Output V olta ge

P a cka ge

 

 

 

 

 

 

 

AME1084

 

 

 

A M E1084ACBT

ACBT

ADJ

TO-220

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084BCBT

BCBT

1.5

TO-220

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084CCBT

CCBT

2.5

TO-220

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084DCBT

DCBT

3.3

TO-220

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084ACDT-3

ACDT-3

ADJ

TO-263-3

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084BCDT-3

BCDT-3

1.5

TO-263-3

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084CCDT-3

CCDT-3

2.5

TO-263-3

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084DCDT-3

DCDT-3

3.3

TO-263-3

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084ACDT

ACDT

ADJ

TO-263-2

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084BCDT

BCDT

1.5

TO-263-2

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084CCDT

CCDT

2.5

TO-263-2

 

 

yyww

 

 

 

 

 

 

 

 

 

AME1084

 

 

 

AME1084DCDT

DCDT

3.3

TO-263-2

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084ACCS

ACCS

ADJ

TO-252

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084BCCS

BCCS

1.5

TO-252

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084CCCS

CCCS

2.5

TO-252

 

 

yyww

 

 

 

 

AME1084

 

 

 

AME1084DCCS

DCCS

3.3

TO-252

 

 

yyww

 

 

3

 

 

 

 

Analog Microelectronics, Inc.

AME1084

5A Low Dropout

Positive Voltage Regulator

n Absolute Maximum Ratings

Parameter

 

Symbol

Maximum

Unit

Input Voltage

 

VIN

7

V

 

TO-220

 

3

 

Thermal Resistance (Junction to Case)

TO-252

θJC

5

 

 

TO-263

 

3

oC/W

 

TO-220

 

50

 

 

 

Thermal Resistance (Junction to Ambient)

TO-252

θJA

90

 

 

TO-263

 

50

 

Operating Junction Temperature Range

 

TJ

0 to 125

 

Storage Temperature Range

 

T

-65 to 150

oC

 

 

STG

 

 

Lead Temperature (10 sec)

 

TLEAD

260

 

4

Analog Microelectronics, Inc.

AME1084

5A Low Dropout

Positive Voltage Regulator

 

nElectrical Characteristics

1. 1084AXXX

Parameter

Symbol

 

 

 

Test Conditions

 

Min.

Typ.

Max.

Units

Reference voltage

VREF

VIN = 5V

 

TJ =25OC

1.238

1.250

1.262

V

 

(adjustable voltage)

IO = 10mA

 

Over temp.

1.225

1.275

 

 

 

 

 

 

 

Line regulation

RegLINE

VIN = 2.75 - 7V

 

TJ =25OC

-

0.015

0.2

%

 

IO = 10mA

 

Over temp.

-

0.035

0.2

 

 

 

 

 

 

 

 

Load regulation

RegLOAD

VIN = 5V

 

TJ =25OC

-

0.05

0.3

%

 

I

 

= 10mA - 5A

 

Over temp.

-

0.2

0.4

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

Dropout voltage

VD

VIN = 2.75 - 7V

 

TJ =25OC

-

1.2

1.4

V

 

VOUT,

VREF = 1%

IO = 10mA - 5A

 

Over temp.

-

1.3

-

 

 

 

 

 

 

Current limit

IS

VIN = 2.75 - 7V, Over temp.

 

5.0

-

-

A

 

Temperature Coefficient

TC

VIN = 2.75 - 7V, IO = 10mA - 5A

-

0.005

-

%/OC

Adjust pin current

IADJ

VIN = 2.75 - 7V

 

TJ = 25OC

-

55

-

 

 

IO = 10mA - 5A

 

Over temp.

-

-

90

μA

 

 

 

 

 

Adjust pin current change

IADJ

VIN = 2.75 - 7V, IO = 10mA - 5A

-

0.2

5

 

 

Over temp.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature stability

TS

VIN = 5V, IO = 500mA, Over temp.

0.5

0.5

-

%

 

Minimum load current

IO

VIN = 5V

 

-

5

10

mA

RMS output noise

VN

TJ = 25OC

 

-

0.003

-

%VO

Ripple rejection ratio

RA

VIN = 5V, IO = 5A, Over temp.

60

72

-

dB

2. 1084DXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

Symbol

 

 

 

Test Conditions

 

Min.

Typ.

Max.

Units

Output voltage

Vo

VIN = 5V

 

TJ =25OC

3.267

3.300

3.333

V

 

(fixed voltage)

IO = 0A

 

Over temp.

3.234

3.366

 

 

 

 

 

 

 

 

 

 

 

V

IN

= 4.5 - 7V

 

T =25OC

-

0.015

0.2

 

 

Line regulation

RegLINE

 

 

 

J

 

 

 

%

 

I

 

= 0A

 

Over temp.

-

0.035

0.2

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

V

IN

= 5V

 

T =25OC

-

0.05

0.3

 

 

Load regulation

RegLOAD

 

 

 

J

 

 

 

%

 

I

 

= 0A - 5A

 

Over temp.

-

0.2

0.4

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

Dropout voltage

 

 

V

IN

= 4.5 - 7V

 

T =25OC

-

1.2

1.4

 

 

 

 

VD

 

 

 

J

 

 

 

V

 

VOUT,

VREF = 1%

IO = 0A - 5A

 

Over temp.

-

1.3

-

 

 

 

 

 

 

Current limit

IS

VIN = 4.5 - 7V, Over temp.

 

5.0

-

-

A

 

Quiescent current

IQ

VIN=5V, Io=0-5A, Over temp.

-

12

13

mA

(fixed model)

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature Coefficient

TC

VIN = 4.5 - 7V, IO = 0A - 5A

 

-

0.005

-

%/0C

Temperature stability

TS

VIN = 5V, IO = 500mA, Over temp.

0.5

0.5

-

%

 

RMS output noise

V

N

T

 

= 25OC

 

-

0.003

-

%V

O

 

 

 

J

 

 

 

 

 

 

 

 

Ripple rejection ratio

RA

VIN = 5V, IO = 5A, Over temp.

60

72

-

dB

5

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