ANPEC APL1085-UC-TU, APL1085-UC-TR, APL1085-GC-TU, APL1085-GC-TR, APL1085-FC-TU Datasheet

Copyright  ANPEC Electronics Corp. Rev. B.5 - Jun., 2003

APL1085

www.anpec.com.tw1

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.

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

••

• Fast Transient Response

••

• Guaranteed Dropout Voltage at Multiple Cur-

rents

••

• Load Regulation : 0.05% Typ.

••

• Line Regulation : 0.03% Typ.

••

• Low Dropout Voltage : 1.2V Typ. at I

OUT

=3A

••

• Trimmed Current Limit : 3A Typ. at T

J

=125 °C

••

• On-Chip Thermal Limiting : 150 °C Typ.

••

• Standard 3-pin TO-220 , TO-252 and TO-263

Power Package

Features General Description

Applications

••

• Pentium

TM

Processor Supplies

••

• PowerPC

TM

Supplies

••

• Low Voltage Logic Supplies

••

• Battery-Powered Circuitry

••

• Post Regulator for Switching Power Supply

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

Front View APL1085 TO-263 Package

Front View APL1085 TO-252 Package

1

2

3

V

IN

V

OUT

ADJ

TAB is V

OUT

Front View APL1085 TO-220 Package

Pin Description

TAB is V

OUT

1

2

3

V

IN

V

OUT

ADJ

1

2

3

V

IN

V

OUT

ADJ

TAB is V

OUT

Copyright  ANPEC Electronics Corp. Rev. B.5 - Jun, 2003

APL1085

www.anpec.com.tw2

Ordering Information

Package Code

F : TO-220 G : TO-263 U : TO-252

Temp. Range

C : 0 to 70 C

Handling Code

TU : Tube TR : Tape & Reel

Voltage Code :

33 : 3.3V Blank : Adjustable Version

°

APL1085-

Handling Code Temp. Range Package Code

Voltage Code

APL1085:

APL1085 XXXXX

- Date Code

XXXXX

APL1085-33 :

APL1085 XXXXX

- Date Code

XXXXX

33

Symbol Parameter Rating Unit

V

I

Input Voltage 7 V

T

J

Operating Junction Temperature Range

Control Section Power Transistor

0 to 125 0 to 150

°

C

T

STG

Storage Temperature Range -65 to +150

°

C

T

L

Lead Temperature (Soldering, 10 second) 260

°

C

Absolute Maximum Ratings

Electrical Characteristics

APL1085Symbol Parameter Test Conditions

Min. Typ. Max.

Unit

V

REF

Reference Voltage

1.5V≤(V

IN -VOUT

)

≤5.75V,

10mA≤ I

OUT

≤

3A, T

J

=0~125°C

1.225(-2%) 1.250 1.275(+2%) V

V

OUT

Output Voltage

APL1085-3.3

10mA≤ I

OUT

≤

3A, 4.75V≤V

IN

≤

7V,

T

J

=0~125°C

3.235(-2%) 3.300 3.365(+2%) V

REG

LINE

Line Regulation

APL1085

APL1085-3.3

T

J

=0~125°C, (Notes 1)

2.75V≤V

IN

≤

7V, I

OUT

=

10mA,

4.75V≤V

IN

≤

7V, I

OUT

=

0mA ,

0.03 0.2 %

REG

LOAD

Load Regulation

APL1085

APL1085-3.3

T

J

=25°C, (Notes 1)

(V

IN -VOUT

)

=3V, 10mA≤ I

OUT

≤

3A

V

I N

=5V, 0mA≤ I

OUT

≤

3A

0.05

0.3

0.5

%

V

D

Dropout Voltage

∆

V

REF

=1% ,I

OUT

=3A ,T

J

=0~125°C

1.3 1.4 V

(V

IN -VOUT

)

=1.7V, T

J

=25°

C

T

J

=

125°C

4.5

3.5

6.0

5.0

I

LIMIT

Current Limit

(V

IN -VOUT

)

=3V, T

J

=25°

C

T

J

=

125°C

5.0

4.0

6.5

5.5

A

I

ADJ

Adjust Pin Current

(V

IN -VOUT

)

=3V, I

OUT

=10mA,

T

J

=0∼

125°C

60 120

µ

A

Copyright  ANPEC Electronics Corp. Rev. B.5 - Jun, 2003

APL1085

www.anpec.com.tw3

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.

Electrical Characteristics Cont.

APL1085Symbol Parameter Test Conditions

Min. Typ. Max.

Unit

∆

I

ADJ

Adjust Pin C urr e nt Change APL1085

1.5V≤( V

IN -VOUT

)≤5.75V,

10mA≤ I

OUT

≤

3A

0.2 5

µ

A

I

LMIN

Minimum Load Current APL1085

1.5V≤( V

IN -VOUT

)≤5.75V,

T

J

=0∼

125°C

210mA

I

Q

Quiescent Cur rent

APL1085-3.3

V

I N

=5V 8 13 mA

PSRR Ripple Re jection

F=120Hz, C

out

=22µF, Tant. ,

(V

IN -VOUT

)=3V, I

OUT

=3A

60 dB

L

S

Long -Term Stability

T

J

=

125°C,1000Hrs.

0.03 1.0 %

V

N

RMS Output Noise(% of V

OUT

)

T

J

=25°

C,10Hz?F?10kHz

0.003 %

θ

JC

Thermal Resistance Junction to Case

Control Circuitry/Power Transistor

0.7/3.0

°

C/

W

Application Circuits

*Required for stability APL1085:C2=10µF * R1 is typically in range of 100Ω to 120Ω

(2.75V~7V)

APL1085

V

IN

+

10µ

F

C

1

(1.250V/ 3A)

Solid Tantalum C

2*

V

OUT

+

(5V)

APL1085

V

IN

+

10µ

F

C

1

(3.3V/ 3A)

V

OUT

Solid Tantalum C

2*

+

R1

R2

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

Typical Regulator

5V to 3.3V Regulator

Copyright  ANPEC Electronics Corp. Rev. B.5 - Jun, 2003

APL1085

www.anpec.com.tw4

0 0.5 1 1.5 2 2.5 3

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

Typical Characteristics

TJ=125°C

TJ= 25°C

TJ= -50°C

TJ=0°C

-0.20

-0.15

-0.10

-0.05

0.0

0.05

0.10

∆

I =3A

-50 0 50 100 150

Temperature (°C)

-50 0 50 100 150

1.225

1.230

1.235

1.240

1.245

1.250

1.255

1.260

1.265

1.270

1.275

Temperature (°C)

Dropout Voltage vs Output Current

Dropout Voltage (V)

Output Current (A)

Reference Voltage vs Temperature

Reference Voltage (V)

Load Regulation vs Temperature

Output Voltage Deviation (%)

Temperature (°C)

Short-Circuit Current vs Temperature

Shout- Circuit Current (A)

4

5

6

7

8

9

10

11

12

13

14

-50 0 50 100 150

VIN-V

OUT (SHORT CIRCUIT)

=5V

VIN-V

OUT(SHORT CIRCUIT)

=3.3V