ANPEC APL1087-VC-TU, APL1087-18EC-TR, APL1087-18DC-TU, APL1087-18DC-TR, APL1087-25EC-TU Datasheet

APL1087

800mA Low Dropout Fast Response Positive Adjustable Regulator and Fixed

1.8V, 2.5V and 3.3V

Features General Description

••

•

Guaranteed Output Voltage Accuracy within 2%

••

••

•

Fast Transient Response

••

••

•

Guaranteed Dropout Voltage at Multiple Cur-

••

rents

••

•

Load Regulation : 0.6% Typ.

••

••

•

Line Regulation : 0.03% Typ.

••

••

• Low Dropout Voltage : 1.3V Typ. at I

••

••

• Current Limit : 0.8A Min. at T

••

••

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

••

••

• Adjustable Output : 1.25~7.15V

••

••

• Standard 3-pin SOT-89, SOT-223, TO-92 and

••

=125°C

J

=500mA

OUT

TO- 252 Power Packages.

Applications

••

• Voltage Regulator for CD-ROM Drivers

••

••

• Voltage Regulator for LAN Cards

••

The APL1087 is a low dropout three-terminal adjust­able regulators with 0.8A output current capability.
In order to obtain lower dropout voltage and faster
transient response, which is critical for low voltage
applications , the APL1087 has been optimized.
The device is available in an adjustable version and
fixed output voltages of 1.8V, 2.5V and 3.3V, the out­put available voltage range is from 1.25~7.15V with
an input supply below 9V. Dropout voltage is guaran­teed at a maximum of 1.45V at 0.5A.
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 APL1087 is available in the industry standard 3­pin SOT-89, SOT-223, TO-92 and TO-252 power
packages.

Pin Description

V

OUT

V

APL1087

OUT

••

• Voltage Regulator for mother Boards

••

••

• Wireless Communication Systems

••

••

• Portable Instrument

••

ADJ/GND

213

OUT

V

IN

V

SOT-89 (Front View)

••

• Portable Consumer Equipment

••

••

• Low Voltage Systems

••

3

V

IN

2

V

OUT

1

ADJ/GND

TO-92 (Top View)

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.
Rev. A.7 - Jun., 2003

123

V

ADJ/GND

V

OUT

IN

SOT-223 (Front View)

V

OUT

123

INOUTADJ/GND

TO-252 (Top View)

www.anpec.com.tw1

APL1087

%

Ordering and Marking Information

APL1087-

Handling Code
Temp. Range

Package Code
Voltage Code

APL1087 U :

APL1087-18U:

APL1087-25U:

APL1087-33U:

APL1087
XXXXX

18

APL1087
XXXXX

25

APL1087
XXXXX

33

APL1087
XXXXX

XXXXX

XXXXX

XXXXX

XXXXX

- Date Code

- Date Code

- Date Code

- Date Code

Absolute Maximum Ratings

Package Code

D : S OT-8 9 E : T O-92
U : T O -2 52 V : S OT-2 2 3
Temp. Range

C : 0 to 70 C
Handling Code

TU : Tu b e T R : Ta p e & Ree l
Voltage Code

18 : 1.8 V 25 : 2.5 V 33 : 3 .3V
Blank : Adjustable Version

APL1087 D /V/E :

APL1087-25D/V/E :

APL1087-33D/V/E :

°

APL1087

XXXXX

APL1087

XXXXX18

APL1087

XXXXX25

APL1087

XXXXX33

XXXXX - Date Code

XXXXX - Date CodeAPL1087-18D/V/E :

XXXXX - Date Code

XXXXX - Date Code

Symbol Parameter Rating Unit

V

I

T

J

T

STG

T

L

θ

JA

Input Voltage 9 V
Operating Junction Temperature Range

Control Section
Power Transistor

0 to 125
0 to 150

Storage Temperature Range -65 to +150
Lead Temperature (Soldering, 10 second) 260

°

°
°

Thermal Resistance from Junction to Ambient in Free Air

SOT-89

SOT-223

TO-92

TO-252

180

75

180

62.5

C/W

°

C

C
C

Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jun., 2003

www.anpec.com.tw2

APL1087

Electrical Characteristics

Symbol Parameter Test Conditions

REF

Reference
Voltage

V

Output Voltage

APL10 87 -18

V

OUT

APL10 87 -25

APL10 87 -33

Line Regulation

APL1087

REG

LINE

APL10 87 -18
APL10 87 -25
APL10 87 -33

Load Regulation

APL1087

REG

LOAD

APL10 87 -18
APL10 87 -25
APL10 87 -33

V

Dropout Voltage

D

I

LIMIT

I

∆

Current Limit
Adjust Pin Current

ADJ

Adjust Pin Current

I

ADJ

Change
Minimum Load

I

O

Current

PSRR Ripp le Rejec tion

Thermal

T

R

Regulation
Temperature

T

S

Stability
Long -Term

L

S

Stability
RMS Output

V

N

Noise

OT

Over Temperature
Point

Quiescent Current

APL10 87 -18
APL10 87 -25
APL10 87 -33

10mA≤ I
T

=0~125°C

J

=0~125°C,

T

J

0≤ I

OUT

T

=0~125°C,

J

0≤ I

OUT

=0~125°C,

T

J

0≤ I

OUT

=0~125°C

T

J

I

10mA, 3.1V≤V

=

OUT

0mA, 3.25 V≤V

I

=

OUT

I

0A, 3.95V≤V

=

OUT

0A, 4.75V≤V

I

=

OUT

T

=0~125°C

J

(V

IN –VOUT

V

=3.25V, 0≤ I

IN

=3.95V, 0≤ I

V

IN

=4.75V, 0≤ I

V

IN

I

=0.5A ,T

OUT

(V

IN -VOUT

(V

IN -VOUT

T

0~125°C, 10mA≤ I

=

J

1.45V≤V
T

=0~125°C, V

J

F

RIPPLE

(V

IN -VOUT

T

=25°C, 30ms Pulse

J

=125°C,1000Hrs.

T

J

T

=25°C,10Hz≤F≤10kHz, (% of V

J

=0~125°C,

T

J

V

9V

≤

IN

V

9V

≤

IN

V

9V

≤

IN

0.5A, 3.1V≤V

≤

OUT

0.5A, 3.25V≤V

≤

0.5A, 3.95V≤V

≤

0.5A, 4.75V≤V

≤

IN

IN

≤

IN

≤

IN

)=3V, 0≤ I

J

OUT

0.5A ,(note 1)

≤

OUT

0.5A ,(note 1)

≤

OUT

0.5A ,(note 1)

≤

OUT

=0~125°C

)=5V, TJ=25°C

=3V, I

)

IN -VOUT

=120Hz, V

=3V, TJ=0~125°C

)

=10mA, TJ=0~125°C

OUT

7.55V

≤

=9V, (note 3)

IN

RIPPLE

≤

IN

9V,

≤

IN

9V,

≤

IN

9V,

≤

IN

9V, (note1)

≤

9V, (note1 )

≤

9V, (note 1)

9V, (note 1)

0.5A ,(note 1)

≤

0.5A,

≤

OUT

=1V

P-P,

9V,

OUT

APL1087

Min. Typ. Max.

Unit

1.225 1.250 1.275 V

1.764

2.450

3.235

1.800

2.500

3.300

1.836

2.550

3.365

0.03
1
1
1

0.4 0.6

0.2
6
6
6

V

%

mV

%

1.3 1.45 V

800 mA

60 120

0.2 5

A

µ

A

µ

1.7 mA

60 75 dB

0.01 0.02 %/ W

0.5 %

0.3 %

)

0.003 %
150

5.5

5.5

5.5

10
10
10

°

mA

C

Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jun., 2003

www.anpec.com.tw3

APL1087

Electrical Characteristics (Cont.)

Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load line regulations are mea­sured at a constant junction temperature by low duty cycle pulse testing.
Note 2: Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/
output differential measured at the specified output current. Test points and limits are also shown on the Dropout Voltage curve.
Note 3: Minimum load current is defined as the minimum output current required to maintain regulation.

Application Circuits

1.25V to 7.15V Adjustable Regulator Impro ving Ripple Rejection

APL1087

V

IN

+

10µ

*

C

1

OUTIN

R2

121

R1

Ω

ADJ

F

* Needed if device is far from filter capacitors

OUT

1.250VV

×=

5V Regulator with Shutdown

APL1087

V

IN

TTL

+

10µ

F

1k

OUTIN

ADJ

1k

+

R1

APL1087

V

OUT

100µ

+

F

*

C

2

V

10µ

ADJ

OUTIN

R1

IN

+

F

V

OUT

150µF

*

C

3

+

R2

10µ

F

* C3 improves ripple rejection.

R2R1

XC should be approximately
equal to R1 at ripple frequency

5V

Ω

121

1%

+

100µ

365

Ω

F

1%

Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jun., 2003

www.anpec.com.tw4

APL1087

Typical Characteristics

Load Transient Response

10

V

=1.25V

OUT

5

0

-5

-10

-15

I

-20

-25

Output Voltage Deviation (mV)

-30
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

OUT

Time (µs)

Adjust Pin Current vs. Temperature

3.5

3

2.5

2

1.5

1

Output Current (A)

0.5

0

-0.5

Line Transient Response

50

40

30

20

10

0

V

-10

OUT

Output Voltage Deviation (mV)

-20
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

Time (µs)

Current Limit vs. Temperature

V

IN

=3.3V

7

6

5

4

3

2

Input Voltage (V)

1

0

62

61

60

59

58

57

Adjust Pin Current (µA)

56

55

-50 0 50 100 150

Temperature (°C) Temperature(°C)

940

920

900

880

860

840

820

Current Limit (mA)

800

780

760

-50 0 50 100 150

IN=

V

5V

Copyright  ANPEC Electronics Corp.
Rev. A.7 - Jun., 2003

www.anpec.com.tw5