ANPEC APL1087R-EC-TU, APL1087R-EC-TR, APL1087R-DC-TU, APL1087R-DC-TR, APL1087R-33EC-TU Datasheet

APL1087R

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 and TO-92 Power

••

Packages.

=125°C

J

=500mA

OUT

Applications

••

• Voltage Regulator for CD-ROM Drivers

••

• Voltage Regulator for LAN Cards

••

The APL1087R 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 APL1087R 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 APL1087R is available in the industry standard 3-pin SOT-89 and TO-92 power packages.

Pin Description

IN

V

APL1087R

••

• Voltage Regulator for mother Boards

••

• Wireless Communication Systems

••

• Portable Instrument

••

• Portable Consumer Equipment

••

• Low Voltage Systems

••

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.2 - Apr., 2003

ADJ/GND

SOT-89 (Front View)

TO-92 (Top View)

213

OUT

IN

V

OUT

V

IN

ADJ/GND

www.anpec.com.tw1

APL1087R

%

Ordering and Marking Information

APL1087R-

Handling Code

Temp. Range

Package Code

Voltage Code

APL1087R D/E :

APL1087R -25D/E :

APL1087R -33D/E :

APL1087R

XXXXX

APL1087R

XXXXX18

APL1087R

XXXXX25

APL1087R

XXXXX33

Absolute Maximum Ratings

Package Code

D : SOT-8 9 E : T O -92

Temp. Range

C : 0 to 70 C

Handling Code

TU : T ube TR : T ape & Reel

Voltage Code

18 : 1.8V 25 : 2.5V 33 : 3.3V

Blank : Adjustable Version

XXXXX - Date Code

XXXXX - Date CodeAPL1087R -18D/E :

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

TO-92

180 180

C/W

°

C

Copyright  ANPEC Electronics Corp. Rev. A.2 - Apr., 2003

www.anpec.com.tw2

APL1087R

Electrical Characteristics

Symbol Parameter Test Conditions

REF

Reference Voltage

V

Output Voltage

APL1087R-18

V

OUT

APL1087R-25

APL1087R-33

Line Regulation

APL1087R

REG

LINE

APL1087R-18 APL1087R-25 APL1087R-33

Load Regulation

APL1087R

REG

LOAD

APL1087R-18 APL1087R-25 APL1087R-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 Ripple Rejection

Thermal

T

R

Regulation Temperature

T

S

Stability Long -Term

L

S

Stability RMS Output

V

N

Noise

OT

Over Temperature Point

Quiescent Current

APL1087R-18 APL1087R-25 APL1087R-33

10mA≤ I T

=0~125°C

J

T

=0~125°C,

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, 3.25V≤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

9V

V

≤

IN

V

9V

≤

IN

9V

V

≤

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

)=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)

0.5A ,(note 1)

≤

0.5A,

≤

OUT

=1V

P-P,

9V,

OUT

APL1087R

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

10 10 10

°

mA

C

Copyright  ANPEC Electronics Corp. Rev. A.2 - Apr., 2003

www.anpec.com.tw3

APL1087R

Electrical Characteristics (Cont.)

Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load line regulations are mea-

sured 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 Improving Ripple Rejection

APL1087R

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

APL1087R

V

IN

TTL

+

10µ

F

1k

OUTIN

ADJ

1k

+

R1

APL1087R

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.2 - Apr., 2003

www.anpec.com.tw4