ANPEC APL1085 handbook

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APU0594WE-TY

APL1085

3A Low Dropout Fast Response Positive Adjustable Regulator and Fixed 3.3V

Features

Fast Transient Response

Guaranteed Dropout Voltage at Multiple Currents

Load Regulation : 0.05% Typ.

Line Regulation : 0.03% Typ.

Low Dropout Voltage : 1.2V Typ. at IOUT =3A

Trimmed Current Limit : 3A Typ. at TJ=125 °C

On-Chip Thermal Limiting : 150 °C Typ.

Standard 3-pin TO-220 , TO-252 and TO-263 Power Package

Applications

PentiumTM Processor Supplies

PowerPCTM Supplies

Low Voltage Logic Supplies

Battery-Powered Circuitry

Post Regulator for Switching Power Supply

General Description

The APL1085 is a low dropout three-terminal adjustable regulator with 3A output current capability. In order to obtain lower dropout voltage and faster transient response, which is critical for low voltage applications, the APL1085 has been optimized. The output available voltage range of adjustable version is from 1.25~5.75V with an input supply below 7V , and the fixed 3.3V output voltage device is also available.

Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures.

The APL1085 is available in both the through-hole and surface mount versions of the industry standard

Pin Description

TAB is VOUT

 

 

 

3

 

 

 

 

VIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

VOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

ADJ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Front View APL1085 TO-220 Package

 

 

 

 

3

 

 

 

VIN

 

 

 

 

 

TAB is VOUT

 

2

 

 

 

VO UT

 

 

 

 

1

 

 

 

AD J

 

 

 

 

 

 

 

 

Front View APL1085 TO-252 Package

 

 

 

 

 

 

 

VIN

 

 

 

 

3

 

 

 

 

 

 

 

 

TAB is V

OUT

 

2

 

 

VO UT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

ADJ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Front View APL1085 TO-263 Package

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.

Copyright ANPEC Electronics Corp.

1

www.anpec.com.tw

Rev. B.5 - Jun., 2003

 

 

APL1085

Ordering Information

A P L 1 0 8 5 -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P a c k a g e C o d e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F : T O - 2 2 0

 

 

G : T O - 2 6 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L e a d F r e e C o d e

U : T O - 2 5 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T e m p . R a n g e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H a n d lin g C o d e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C : 0 to

7 0 °C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T e m p . R a n g e

H a n d lin g

C o d e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T U : T u b e

 

 

T R : T a p e & R e e l

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P a c k a g e C o d e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V o lta g e C o d e

:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V o lta g e C o d e

3 3 : 3 . 3 V

 

 

B la n k : A d ju s ta b le V e r s io n

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L e a d F r e e C o d e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L : L e a d F re e D e v ic e

B la n k : O r ig in a l D e v ic e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A P L 1 0 8 5 :

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X X X X X - D a te C o d e

A P L 1 0 8 5 - 3 3 :

 

3 3

 

X X X X X - D a te C o d e

 

 

 

A P L 1 0 8 5

 

 

 

 

 

A P L 1 0 8 5

 

 

 

 

 

X X X X X

 

 

 

 

 

 

 

 

 

 

X X X X X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

VI

Input Voltage

7

V

TJ

Operating Junction Temperature Range

0 to 125

°C

 

Control Section

 

 

Power Transistor

0 to 150

 

TSTG

Storage Temperature Range

-65 to +150

°C

TL

Lead Temperature (Soldering, 10 second)

260

°C

Electrical Characteristics

Symbol

Parameter

Test Conditions

APL1085

Unit

 

 

 

 

Min.

Typ.

Max.

 

VREF

Reference Voltage

1.5V(VIN -VOUT) 5.75V,

1.225(-2%)

1.250

1.275(+2%)

V

 

 

10mAIOUT 3A, TJ =0~125°C

 

 

 

 

VOUT

Output Voltage

10mAIOUT 3A, 4.75VVIN 7V,

3.235(-2%)

3.300

3.365(+2%)

V

 

APL1085-3.3

TJ =0~125°C

 

 

 

 

 

 

 

 

 

 

 

 

REGLINE

Line Regulation

TJ =0~125°C, (Notes 1)

 

0.03

0.2

%

 

APL1085

2.75VVIN 7V, IOUT=10mA,

 

 

 

 

 

APL1085-3.3

4.75VVIN 7V, IOUT=0mA ,

 

 

 

 

REGLOAD

Load Regulation

TJ=25°C, (Notes 1)

 

 

 

 

%

 

APL1085

(VIN -VOUT)=3V, 10mAIOUT 3A

 

0.05

0.3

 

 

APL1085-3.3

VI N=5V, 0mAIOUT 3A

 

0.05

0.5

 

VD

Dropout Voltage

VREF=1% ,IOUT=3A ,TJ =0~125°C

 

1.3

1.4

V

ILIMIT

Current Limit

(VIN -VOUT)=1.7V,

TJ=25°C

4.5

6.0

 

 

 

 

 

TJ=125°C

3.5

5.0

 

 

 

 

(VIN -VOUT)=3V,

TJ=25°C

5.0

6.5

 

A

 

 

 

TJ=125°C

4.0

5.5

 

 

IADJ

Adjust Pin Current

(VIN -VOUT)=3V, IOUT=10mA,

 

60

120

A

 

 

TJ=0125°C

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright ANPEC Electronics Corp.

2

 

 

www.anpec.com.tw

Rev. B.5 - Jun, 2003

 

 

 

 

 

 

APL1085

Electrical Characteristics Cont.

Symbol

Parameter

Test Conditions

 

APL1085

 

Unit

 

 

 

 

Min.

 

Typ.

 

Max.

 

IADJ

Adjust Pin Current

1.5V≤( VIN -VOUT)≤5.75V,

 

 

0.2

 

5

µA

 

Change

APL1085

10mA≤ IOUT≤ 3A

 

 

 

 

 

 

ILMIN

Minimum Load

1.5V≤( VIN -VOUT)≤5.75V,

 

 

2

 

10

mA

 

Current

APL1085

TJ=0 125°C

 

 

 

 

 

 

IQ

Quiescent Current

VI N=5V

 

 

8

 

13

mA

 

APL1085-3.3

 

 

 

 

 

 

 

PSRR

Ripple Rejection

F=120Hz, Cout=22µF, Tant. ,

60

 

 

 

 

dB

 

 

 

(VIN -VOUT)=3V, IOUT=3A

 

 

 

 

 

 

LS

Long -Term

TJ =125°C,1000Hrs.

 

 

0.03

 

1.0

%

 

Stability

 

 

 

 

 

 

 

 

VN

RMS Output

TJ=25°C,10Hz? F? 10kHz

 

 

0.003

 

 

%

 

Noise(% of VOUT)

 

 

 

 

 

 

 

θJC

Thermal

 

Control Circuitry/Power

 

 

 

 

0.7/3.0

°C/

 

Resistance

Transistor

 

 

 

 

 

W

 

Junction to Case

 

 

 

 

 

 

 

NOTE 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulations are measured at a constant junction temperature by low duty cycle pulse testing.

Application Circuits

Typical Regulator

VIN (2.75V~7V)

APL1085

VOUT (1.250V/ 3A)

10F +

 

+

C1

 

Solid Tantalum

 

C2*

 

 

5V to 3.3V Regulator

VIN

(5V)

+

APL1085

+

VOUT (3.3V/ 3A)

 

10F

 

Solid Tantalum

 

 

R1

 

 

C1

 

 

C2*

*Required for stability

 

 

R2

R1/(R1+R2)=1.250V/3.3V

 

 

 

APL1085:C2=10µF

* R1 is typically in range of 100Ω to 120Ω

Copyright ANPEC Electronics Corp.

3

www.anpec.com.tw

Rev. B.5 - Jun, 2003

 

 

ANPEC APL1085 handbook

APL1085

Typical Characteristics

Dropout Voltage vs Output Current

 

1.5

 

 

 

 

 

 

 

1.4

 

 

 

 

 

 

 

1.3

 

°

 

 

 

 

(V)

1.2

TJ= -50 C

 

 

 

 

Voltage

 

 

 

 

 

 

1.1

 

 

 

 

 

 

1.0

TJ= 25°C

 

 

 

 

Dropout

0.9

 

 

 

 

0.8

TJ=125°C

 

 

TJ=0°C

 

0.7

 

 

 

 

 

 

 

 

 

 

0.6

 

 

 

 

 

 

 

0.50

0.5

1

1.5

2

2.5

3

Output Current (A)

Short-Circuit Current vs Temperature

 

14

VIN-VOUT (SHORT CIRCUIT) =5V

 

(A)

13

 

 

 

 

 

12

 

 

 

 

Current

 

 

 

 

11

 

 

 

 

10

 

 

 

 

-Circuit

 

 

 

 

9

 

 

 

 

8

 

 

 

 

Shout

7

 

 

 

 

6

 

 

 

 

 

VIN-VOUT(SHORT CIRCUIT) =3.3V

 

 

5

 

 

 

 

 

 

 

4

0

50

100

150

 

-50

Temperature (°C)

Load Regulation vs Temperature

Reference Voltage vs Temperature

 

0.10

I =3A

 

 

 

 

1.275

 

 

 

 

 

 

 

 

 

 

1.270

 

 

 

 

(%)

0.05

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.265

 

 

 

 

Output Voltage Deviation

 

 

 

 

 

Reference Voltage (V)

 

 

 

 

0.0

 

 

 

 

1.260

 

 

 

 

 

 

 

 

1.255

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.05

 

 

 

 

1.250

 

 

 

 

-0.10

 

 

 

 

1.245

 

 

 

 

 

 

 

 

1.240

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.15

 

 

 

 

1.235

 

 

 

 

 

 

 

 

1.230

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.20

0

50

100

150

 

1.225

0

50

100

150

 

-50

 

-50

Temperature (°C)

Temperature (°C)

Copyright ANPEC Electronics Corp.

4

www.anpec.com.tw

Rev. B.5 - Jun, 2003

 

 

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