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APL1087E-33VC-TR中文资料

APL1087E

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.? 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 OUT =500mA ? Current Limit : 0.8A Min. at T J =125°C ? On-Chip Thermal Limiting : 150 °C Typ.? Adjustable Output : 1.25~7.15V

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

TO-252 Power Packages.

Features

General Description

The APL1087E is a low dropout three-terminal ad-justable 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 APL1087E has been optimized.The device is available in an adjustable version and fixed output voltages of 1.8V, 2.5V and 3.3V, the out-put available voltage range is from 1.25~7.15V with an input supply below 9V. Dropout voltage is guaran-teed 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 com-bination of overload that would create excessive junc-tion temperatures.

The APL1087E is available in the industry standard 3-pin SOT-89, SOT-223,TO-92 and TO-252 power packages.

Pin Description

Applications

? Voltage Regulator for CD-ROM Drivers ? Voltage Regulator for LAN Cards ? Voltage Regulator for mother Boards ? Wireless Communication Systems ? Portable Instrument

? Portable Consumer Equipment ? Low Voltage Systems

V IN V OUT

GND

TO-92 (Top View)

SOT-89 (Front View)V IN

V OUT

GND

2

1

3

123

V

I N

V

O U T

G N D TO-252 (Front View)

123

V IN V O UT GND SOT-223 (Front View)

APL1087E

Ordering and Marking Information

A P L1

A P L1

A P L1

A P L1

Absolute Maximum Ratings

APL1087E

Electrical Characteristics

APL1087E

V IN

10μ

OUT

μF

Application Circuits

* Needed if device is far from filter capacitors

1.25V to 7.15V Adjustable Regulator

Improving Ripple Rejection

R1

R2R11.250V V OUT +×

=V IN

TTL

00μ

F

5V

5V Regulator with Shutdown

V IN

V O U T

μF 2

*

* C 3 improves ripple rejection. X C should be approximately equal to R1 at ripple frequency

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.

APL1087E

0.1

0.2

0.3

0.40.5

0.6

0.7

0.8

0.9

1

-0.5

0.51

1.52

2.5

3

3.5-30

-25-20-15-10-50510

Typical Characteristics

Load Transient Response

O u t p u t C u r r e n t (A )

O u t p u t V o l t a g e D e v i a t i o n (m V )

Time (μs)Line Transient Response

I n p u t V o l t a g e (V )

O u t p u t V o l t a g e D e v i a t i o n (m V )

Time (μ

s)

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

-20

-100

10203040

50

12

3456

7

Adjust Pin Current vs. Temperature

-50

50

100

150

55

56575859606162

A d j u s t P i n C u r r e n t (μA )

Current Limit vs. Temperature

-50

50

100

150

760780800820840

860880900920

940C u r r e n t L i m i t (m A )

Temperature (°C)Temperature(°

C)

APL1087E

Typical Characteristics (Cont.)

Dropout Voltage vs. Temperature

-50

-25

25

50

75

100

125

150

11.051.11.151.21.251.31.351.41.45

1.5D r p o u t V o l t a g e (V )

Temperature (°

C)

3333-50

-250255075100125

Output Voltage vs. Temperature

O u t p u t V o l t a g e (V )

Temperature (°C)

Reference Voltage vs. Temperature

-50

-250255075100125150

1.22

1.2251.231.2351.241.2451.251.255R e f e r e n c e V o l t a g e (V )

Temperature (°C)

1111222222-50

-250255075100125

Output Voltage vs. Temperature

O u t p u t V o l t a g e (V )

Temperature (°C)

APL1087E

Typical Characteristics (Cont.)

Current Limit vs. Input Voltage

C u r r e n t L i m i t (m A )

Input Voltage (V)

Load Regulation vs. Output Current

12

34567

8

L o a d R e g u l a t i o n (m V )

Output Current (mA)Dropout Voltage vs. Output Current

0200400600800

0.4

0.60.811.21.41.6

1.8

D r o p o u t V o l t a g e (V )

Output Current (mA)

01230

1

2

3

4

5

6

7

8

9

Output Voltage vs. Input Voltage

Input Voltage (V)O u t p u t V o l t a g e (V )

456789

830

840

850860870880890900910920

930940

APL1087E

Package Information

SOT-89 (Reference EIAJ ED-7500A Reg stration SC-62)

APL1087E

Package Information

SOT-223( Reference JEDEC Registration SOT-223)

APL1087E Package Information TO-92

APL1087E

Package Informaion

TO-252( Reference JEDEC Registration TO-252)

APL1087E

Physical Specifications

T L

T P

25

T e m p e r a t u r e

Tim e

Reflow Condition (IR/Convection or VPR Reflow)

Classificatin Reflow Profiles

APL1087E

Carrier Tape & Reel Dimensions

Reliability Test Program

APL1087E

Carrier Tape & Reel Dimensions

(m m) Cover Tape Dimensions

Customer Service

Anpec Electronics Corp.

Head Office :

5F, No. 2 Li-Hsin Road, SBIP,

Hsin-Chu, Taiwan, R.O.C.

Tel : 886-3-5642000

Fax : 886-3-5642050

Taipei Branch :

7F, No. 137, Lane 235, Pac Chiao Rd.,

Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.

Tel : 886-2-89191368

Fax : 886-2-89191369

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