AP1186K5-15L-13 Datasheet AP1186K5-25G-13, AP1186K5-L-13, AP1186T5-25G-U | P1-P3

AP1186

1.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1186 Rev. 1 1 of 9 MARCH 2007

www.diodes.com © Diodes Incorporated

Lead-free

• Adjustable or Fixed output voltage 1.5V, 1.8V, 2.5V,

3.3V, 5.0V

• 0.5V Maximum Dropout voltage at 1.5A Load current

• Built-in Thermal Shutdown

• Output Current Limiting

• Fast transient response

• Good noise rejection

• Packages: TO220-5L, TO263-5L

• Lead Free Finish/RoHS Compliant for Lead Free

products (Note 1)

AP1186 is a 1.5A regulator with extremely low dropout voltage.

This product is specifically designed to provide well-regulated

supply for applications requiring 2.8V or lower voltages from 3.3V

ATX power supplies where high efficiency of a switcher can be

achieved without the cost and complexity associated with a

switching regulator. One such application is the new graphic chip

sets that require anywhere from 2.4V to 2.7V supply.

K5:TO263-5L

T5:TO220-5L

AP

1186

X -

X X X

Package Vout

Blank : Adj

15 : 1.5V

18 : 1.8V

25 : 2.5V

33 : 3.3V

50 : 5.0V

Packing

-U : Tube

-13: Taping

Lead Free

L : Lead Free Package

Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.

Tube 13” Tape and Reel

Device

Package

Code

Packaging

(Note 2)

Quantity

Part Number

Suffix

Quantity

Part Number

Suffix

AP1186T5 T5 TO220-5L 50 -U NA NA

AP1186K5 K5 TO263-5L 50 -U 800/Tape & Reel -13

Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf

.

Features

General Description

Ordering Information

Typical Application

470uF

+

470uF

+

2.5

V

/1.5A

3

2

1

Vou

t

Vsense

GND

Vctrl

Vin

4

5

3V 5V

470uF

+

AP1186

1.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1186 Rev. 1 2 of 9 MARCH 2007

www.diodes.com © Diodes Incorporated

Block Diagram

THERMAL

SHUTDOWN

Vout

Adj

1.25V

+

CURRENT

LIMIT

Vin

+

-

+

-

Vsense

Vctrl

Package Connect Diagram

5 PIN TO263 5 PIN TO220

Tab is Vout

FRONT VIEW

Tab is Vout

FRONT VIEW

Vout

Vsense

Adj(GND)

Vctrl

Vin

5

2

1

4

3

2

1

Vout

Vsense

Adj(GND)

Vctrl

Vin

4

5

Pin Descriptions

Name I/O Description

Vsense I

This pin is the positive side of the reference that allows remote load sensing to achieve excellent load

regulation. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability.

Adj

(GND)

A resistor divider from this pin to the Vout pin and ground sets the output voltage.

(GND only for fixed mode)

Vout O

The output of the regulator. A minimum of 100uF capacitor must be connected from this pin to ground

to insure stability.

Vctrl I

This pin is the supply pin for the internal control circuit as well as the base drive for the pass transistor.

This pin must always by higher than the Vout pin in order for the device to regulate. A minimum of

100uF capacitor must be connected from this pin to ground to insure stability.

Vin I

The input of the regulator. Typically a large storage capacitor is connected from this pin to ground to

insure that the input voltage does not sag below the minimum dropout voltage during the load

transient response. This pin must always be higher than Vout in order for the device to regulate.

AP1186

1.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1186 Rev. 1 3 of 9 MARCH 2007

www.diodes.com © Diodes Incorporated

Absolute Maximum Ratings

Symbol Parameter Rating Unit

Vin Input Voltage 16 V

Vctrl Control Input Voltage 18 V

PD Power Dissipation Internally Limited

T

ST

Storage Temperature -65 to +150

o

C

T

OP

Operating Junction Temperature Range 0 to +150

o

C

Electrical Characteristics

Unless otherwise specified, these specifications apply over, Cin = 1uF, Cout = 10uF, and T

J

= 0 to 150

o

C. Typical value refers to T

A

=

25

o

C. Vout = Vsense.

SYM. Parameter Test Condition Min. Typ. Max. Unit

V

REF

Reference

Voltage

AP1186-Adj

T

A

= 25

o

C,(V

IN

-V

OUT

) = 0.5V,I

O

= 10mA

V

ctrl

= V

IN

+1V

1.225 1.250 1.275 V

AP1186-1.5

I

OUT

= 10mA, T

A

= 25

o

C, 2V≦V

IN

≦12V

V

ctrl

= V

IN

+1V

1.470 1.500 1.530

AP1186-1.8

I

OUT

= 10mA, T

A

= 25

o

C, 2.3V≦V

IN

≦12V

V

ctrl

= V

IN

+1V

1.764 1.800 1.836

AP1186-2.5

I

OUT

= 10mA, T

A

= 25

o

C, 3V≦V

IN

≦12V

V

ctrl

= V

IN

+1V

2.450 2.500 2.550

AP1186-3.3

I

OUT

= 10mA, T

A

= 25

o

C, 3.8V≦V

IN

≦12V

V

ctrl

= V

IN

+1V

3.235 3.300 3.365

V

out

Output Voltage

AP1186-5.0

I

OUT

= 10mA, T

A

= 25

o

C, 5.5V≦V

IN

≦12V

V

ctrl

= V

IN

+1V

4.900 5.000 5.100

V

Line Regulation AP1186-XXX

I

O

= 10mA, V

OUT

+0.5V<V

IN

<12V

V

ctrl

= V

IN

+1V

0.2 %

AP1186-Adj

0mA<Io<1.5A, T

A

=25

o

C

(V

IN

– V

OUT

) = 2V, V

ctrl

= V

IN

+ 1V

1 %

AP1186-1.5

V

IN

= 3V, 0mA<Io<1.5A, T

A

= 25

o

C

V

ctrl

= 4V

12 15 mV

AP1186-1.8

V

IN

= 3.3V, 0mA<Io<1.5A, T

A

= 25

o

C

V

ctrl

= 4.3V

15 18 mV

AP1186-2.5

V

IN

= 4V, 0mA<Io<1.5A, T

A

= 25

o

C

V

ctrl

= 5V

20 25 mV

AP1186-3.3

V

IN

= 5V, 0≦I

OUT

≦1.5A, T

A

= 25

o

C ,

T

A

= 25

o

C V

ctrl

= 6V

26 33 mV

Load Regulation

AP1186-5.0

V

IN

= 8V, 0≦I

OUT

≦1.5A, T

A

= 25

o

C ,

T

A

= 25

o

C V

ctrl

= 9V

40 50 mV

Dropout Voltage

(Vctrl-Vout)

Vadj = 0V for all conditions below.

Vin = 2.05V, Io = 1.5A

1.23

V

Dropout Voltage

(Vin-Vout)

Vadj = 0V for all conditions below.

Vctrl = 3V, Io = 1.5A

0.26

0.38

V

Current Limit Vctrl = 3V, Vin = 2.05V, ∆Vo = 100mV, Vadj = 0V 1.6 A

Minimum Load

Current

Vctrl = 5V, Vin = 3.3V, Vadj = 0V 5 10 mA

AP1186K5-15L-13

AP1186K5-15L-13

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