ANPEC APL158125U5C-TU, APL158125U5C-TR, APL158125G5C-TU, APL158125G5C-TR, APL158125F5C-TU Datasheet

DUAL INPUT LOW DROPOUT REGULATOR

Copyright  ANPEC Electronics Corp.

Rev. A.8 - Oct., 2003

APL1581

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.

Features General Description

The APL1581 series of high performance positive volt-

age regulators are designed for use in applications

requiring very low dropout voltage at 5Amp.

The APL1581 can provide a output voltage at the range

of 1.25V to 2.55V , where both 5V and 3.3V voltage

supplies are available.

The superior dropout characteristics result in reduced

heat dissipation compared to regular LDOs. The

APL1581 also provides excellent regulation over line

, load , and temperature variations.

Current limit is trimmed to ensure specified output

current and controlled short-circuit current. On-chip

thermal limiting provides protection against any com-

bination of overload that would create excessive junc-

tion temperature.

The APL1581 is available in both the through-hole

and surface mount versions of the industry standard

5-Pin TO-220 and TO-263, TO-252 power packages.Applications

• Microprocessor Supplies

•! Chip Set Supplies

• VGA Card Power

• LCD Monitor Power

Ordering and Marking Information

••

••

•

Adjustable or Fixed Output

••

••

•

520mV typ. Dropout at 5A in dual power

voltage mode

••

••

•

Remote Sense Pin Available

••

••

•

2% Accuracy Over Temperature Range

••

••

•

Build-in Over Temperature Protection

••

••

• Build-in Current Limit

••

••

• 5 Pin TO-220 and TO-263, TO-252

Packages

••

••

• No Supply Sequencing Problems in Dual

Supply Mode

Package C ode

F5 : T O -2 20 -5 G 5 : T O -2 63 -5 U 5 :T O -2 52 -5

Temp. Range

C : 0 to 7 0 C

Handling Code

TU : T u be TR : Ta p e & Ree l

Voltage Code :

15 : 1.5 V 18 : 1.8 V

25 : 2.5V

APL1581

Handling Code

Temp. Range

Package C ode

Voltage Code

APL1 581F/G/U :

APL1 581

XXXXX

XXXXX - Date Code

APL1 581-15 :

APL1581

XXXXX

XXXXX - Date Code

15

o

Copyright  ANPEC Electronics Corp.

Rev. A.8- Oct., 2003

APL1581

www.anpec.com.tw2

PIN

No. Name

I/O Description

1V

SENSE

I

Positive side of the refere nce voltage , which allows remote s ensing to

obtain excellent load regulatio n.

ADJ O

Negative side of the reference voltage, which allows to use resistor

divider to set an expect output voltage. A small bypass capacitor can be

connected from this pin to ground to improve PSRR performance.

2

GND O

For fixed voltage devices this is the bottom of the resistor divider that

sets the output voltage.

3V

OUT

O

Output pin of the regulator, which connects to the TAB. A minim um of

10

µ

F capacitor must be connected from this pin to ground to ensure the

stability.

4V

CONTROL

I

Supply pin of the control cir cuitry, Which must be always higher than

V

OUT

for the device to regulate. (see electrical characteristics)

5V

IN

I

Power input pin of the regulator, which must be always higher than

V

OUT

for the device to regulate. (see electrical characteristics)

Block Diagram

Pin Configuration

Pin Description

Current

Limit

Voltage

Regulation

Thermal

Protection

V

IN

V

CONTROL

V

OUT

ADJ/GND

V

SENSE

V

SENSE

ADJ(or G ND)

V

OUT

V

CONTROL

V

IN

1

2

3

4

5

TAB is V

OUT

V

SENSE

ADJ(or GND)

V

OUT

V

CONTROL

V

IN

1

2

3

4

5

TAB is V

OUT

Front View of TO-220-5 Front View of TO-263-5

V

IN

V

CONTROL

V

OUT

ADJ(or GND)

V

SENSE

1

2

3

4

5

TAB is V

OUT

Front View of TO-252-5

Copyright  ANPEC Electronics Corp.

Rev. A.8- Oct., 2003

APL1581

www.anpec.com.tw3

Symbol Parameter Rating Unit

V

IN

Input Voltage 7 V

V

CONTROL

Co n trol Volta g e 13.2 V

Q

JA

Thermal Resistance – Junction to Ambient 62.5

°C/W

P

D

Pow e r D is sip a tio n Intern a lly L im ite d W

T

J

Operating Junction Tem p erature

°C

Control Section 0 to 125

Power Transistor 0 to 150

T

STG

Storage Temperature Range -65 to +150

°C

T

L

Lead Temperature (Soldering, 10 second) 260

°

C

Absolute Maximum Ratings

Electrical Characteristics

Unless otherwise noted , these specifications apply over CIN=10uF , CCONTROL=1uF , COUT=10uF , and

TJ=0 to 125°C. Typical values refer to TJ=25°C. VOUT=VSENSE.

APL1581

Symbol Parameter Test Conditions

MIN TYP MAX

UNIT

V

REF

Reference Voltage

APL1581 V

CONTROL

=2.75~12V, V

IN

=2.05~5.5V,

I

O

=10mA~5A, V

ADJ

=0V

1.225 1.250 1.275 V

V

OUT

Output Voltage

APL1581-15

APL1581-18

APL1581-25

(I

O

=0~5A for fixed versions)

V

CONTROL

=3~12V , V

IN

=2.3~5.5V

V

CONTROL

=3.3~12V , V

IN

=2.6~5.5V

V

CONTROL

=4~12V , V

IN

=3.3~5.5V

1.470

1.764

2.450

1.500

1.800

2.500

1.530

1.836

2.550

V

REG

LINE

Line Regulation

APL1581

APL1581-15

APL1581-18

APL1581-25

(I

O

=0A for fixed versions)

V

CONTROL

=2.75~12V, V

IN

=1.75~5.5V,

I

O

=10mA, V

ADJ

=0V

V

CONTROL

=3~12V, V

IN

=2.3~5.5V

V

CONTROL

=3.3~12V, V

IN

=2.6~5.5V

V

CONTROL

=4~12V, V

IN

=3~5.5V

3mV

REG

LOAD

Load Regulation (note 1)

APL1581

APL1581-15

APL1581-18

APL1581-25

(I

O

=0~5A for fixed versions)

V

CONTROL

=2.75V, V

IN

=2.1V, V

ADJ

=0V,

I

O

=10mA~ 5A

V

CONTROL

=3V, V

IN

=2.35V

V

CONTROL

=3.3V, V

IN

=2.65V

V

CONTROL

=4V, V

IN

=3.35V

5mV

V

CONTROL

-V

OUT

Dropout Voltage (note 2)

APL1581

APL1581-15

APL1581-18

APL1581-25

I

O

=5A for all versions

V

IN

=2.05V, V

ADJ

=0V

V

IN

=2.3V

V

IN

=2.6V

V

IN

=3.3V

1.20 1.35 V

V

IN

-V

OUT

Dropout Voltage (note 2)

APL1581

APL1581-15

APL1581-18

APL1581-25

I

O

=5A for all versions

V

CONTROL

=2.75V, V

ADJ

=0V

V

CONTROL

=3V

V

CONTROL

=3.3V

V

CONTROL

=4V

0.52 0.75 V

I

LIMIT

Current Limit V

CONTROL

-V

OUT

=1.5V, V

IN

-V

OUT

=0.6V 5 A

I

LMIN

Minimum Load C urrent

(note 3) APL1581 V

CONTROL

=5V, V

IN

=3.3V, V

ADJ

=0V

0.8 10 m A

REG

THERMAL

Thermal Regulation 30mS P ulse 0.01

%

/W

Copyright  ANPEC Electronics Corp.

Rev. A.8- Oct., 2003

APL1581

www.anpec.com.tw4

Note 1 : Low duty cycle pulse test with Kelvin con-

nections are required to maintain data accuracy .

Note 2 : Dropout voltage is defined as the minimum

difference between VIN and VOUT required to maintain

1% VOUT regulation .

Note 3 : Minimum load current is defined as the mini-

mum current required at the output to maintain VOUT

regulation.

Application Circuit

∗ VOUT = VREF ( 1+ R2 / R1 ) + IADJ * R2

∗ R1 is typically in range of 100Ω to 125Ω to satisfy the minimum load current requirement

V

SENSE

V

OUT

V

IN

APL1581

ADJ

V

CONTROL

GND

2.5V

GND

5.0V

3.3V

5

4

2

1

3

R2

125

Ω

R1

125

Ω

V

REF

-+

APL1581

Symbol Parameter Test Conditions

MIN TYP MAX

UNIT

PSRR

Power Supply Ripple

Rejection

APL1581

APL1581-15

APL1581-18

APL1581-25

V

RIPPLE

=1V

PP

at 120Hz, I

O

=5A

V

CONTROL

=5V, V

IN

=5V, V

ADJ

=0V

V

CONTROL

=5.25V, V

IN

=5.25V

V

CONTROL

=5.55V, V

IN

=5.55V

V

CONTROL

=6.25V, V

IN

=6.25V

60 70 dB

I

CONTROL

Control Pin Current

V

CONTROL

-V

OUT

=1.5V , V

IN

-V

OUT

=0.8V,

I

O

=5A

45 120 mA

I

GND

Ground Pin Current

APL1581-15

APL1581-18

APL1581-25

V

CONTROL

=3V, V

IN

=2.3V

V

CONTROL

=3.3V, V

IN

=2.6V

V

CONTROL

=4V, V

IN

=3.3V

813mA

I

ADJ

Adjust Pin Current

APL1581 V

CONTROL

=2.75V , V

IN

=2.05V , V

ADJ

=0V

50 120

µ

A

Q

JC

Junction-to-Case

Thermal Resistance

Power Transistor 3.0 °C/W

Unless otherwise noted , these specifications apply over CIN=10uF , CCONTROL=1uF , COUT=10uF , and

TJ=0 to 125°C. Typical values refer to TJ=25°C. VOUT=VSENSE.

Electrical Characteristics Cont.

Copyright  ANPEC Electronics Corp.

Rev. A.8- Oct., 2003

APL1581

www.anpec.com.tw5

Application Circuit

V

SENSE

V

OUT

V

IN

APL1581-25

GND

V

CONTROL

GND

2.5V

GND

5.0V

3.3V

5

41

3