AME8810IEGT_技术文档

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n General Description

n Functional Block Diagram

The AME8805/8810 family of positive, linear regulators

feature low quiescent current (30µA typ.) with low drop-

out voltage, making them ideal for battery applications.

The space-saving SOT-89 and SOT-223 packages are

attractive for "Pocket" and "Hand Held" applications.

IN

OUT

Overcurrent

Shutdown

These rugged devices have both Thermal Shutdown,

and Current Fold-back to prevent device failure under the

"Worst" of operating conditions.

R1

Thermal

Shutdown

The AME8805/8810 is stable with an output capaci-

tance of 2.2µF or greater.

AMP

V_ref=1.215V

R2

GND

n Features

l Very Low Dropout Voltage

l Guaranteed 600mA Output

l Accurate to within 1.5%

l 30µA Quiescent Current

l Over-Temperature Shutdown

l Current Limiting

n Typical Application

l Short Circuit Current Fold-back

l Space-Saving SOT-89, SOT-223

l Factory Pre-set Output Voltages

l Low Temperature Coefficient

IN

OUT

AME8805

IN

AME8810 ^OUT

GND

C1

C2

5V

1µF

2.2µF

n Applications

l Instrumentation

l Portable Electronics

l Wireless Devices

l Cordless Phones

l PC Peripherals

l Battery Powered Widgets

l Electronic Scales

1

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Pin Configuration

SOT-89

SOT-223

Top View

AME8805

1. GND

2. V_IN

AME8805

1. V_IN

AME8805

2. GND

3. V_OUT

AME8805

3. V_OUT

1

2

3

1

2

3

SOT-223

Top View

AME8810

1. GND

2. V_OUT

3. V_IN

AME8810

1

2

3

2

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Ordering Information

AME8805 x x x x x

AME8810 x x x x x

Special Feature

Number of Pins

Package Type

Operating Temperature Range

Product Grade or Option

Product

Grade

or Option

Operating

Temperature Range

Number of

Package Type

Special Feature

Pins

-40^OC to 85^OC

E:

A: 3.3V

B: 3.0V

C: 2.8V

D: 2.5V

E: 3.8V

F: 3.6V

G: 3.5V

H: 2.7V

I: 3.4V

F: SOT-89

G: SOT-223

T: 3

Z: Lead Free

J: 2.85V

K: 3.7V

L: 1.5V

M: 1.8V

N: 2.9V

O: 3.1V

Y: 1.9V

1: 1.3V

2: 2.0V

3

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Ordering Information

Part Number

AME8805AEFT

AME8805AEFTZ

AME8805BEFT

AME8805CEFT

AME8805DEFT

AME8805DEFTZ

AME8805EEFT

AME8805FEFT

AME8805GEFT

AME8805HEFT

AME8805IEFT

AME8805JEFT

AME8805KEFT

AME8805LEFT

AME8805MEFT

AME8805MEFTZ

AME8805NEFT

AME8805OEFT

AME8805YEFT

AME88052EFT

Marking

Output Voltage Package Operating Temp. Range

A8805

AEFww

A8805

AEFww

A8805

BEFww

A8805

CEFww

A8805

DEFww

A8805

DEFww

A8805

EEFww

A8805

FEFww

A8805

GEFww

A8805

HEFww

A8805

IEFww

A8805

JEFww

A8805

KEFww

A8805

LEFww

A8805

MEFww

A8805

MEFww

A8805

NEFww

A8805

OEFww

A8805

YEFww

A8805

2EFww

- 40^oC to + 85^oC

3.3V

3.0V

2.8V

2.5V

3.8V

3.6V

3.5V

2.7V

3.4V

2.85V

3.7V

1.5V

1.8V

2.9V

3.1V

1.9V

2.0V

SOT-89

- 40^oC to + 85^oC

AME8805AEGT

AME8805AEGTZ

AME8805BEGT

AME8805CEGT

ADByww

ADCyww

ADDyww

3.3V

3.0V

2.8V

SOT-223

4

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Ordering Information (contd.)

Part Number

AME8805DEGT

AME8805DEGTZ

AME8805EEGT

AME8805FEGT

AME8805GEGT

AME8805HEGT

AME8805IEGT

AME8805JEGT

AME8805KEGT

AME8805MEGT

AME8805NEGT

AME8805OEGT

AME88051EGT

AME8810AEGT

AME8810AEGTZ

AME8810BEGT

AME8810BEGTZ

AME8810CEGT

AME8810DEGT

AME8810EEGT

AME8810FEGT

AME8810GEGT

AME8810HEGT

AME8810IEGT

AME8810JEGT

AME8810KEGT

AME8810LEGT

AME8810MEGT

AME8810NEGT

AME8810OEGT

Marking

ADEyww

ADFyww

ADGyww

ADHyww

AEJyww

AERyww

AGTyww

AHVyww

AJJyww

Output Voltage Package Operating Temp. Range

- 40^oC to + 85^oC

2.5V

3.8V

3.6V

3.5V

2.7V

3.4V

2.85V

3.7V

1.8V

2.9V

3.1V

1.3V

3.3V

3.0V

2.8V

2.5V

3.8V

3.6V

3.5V

2.7V

3.4V

2.85V

3.7V

1.5V

1.8V

2.9V

3.1V

SOT-223

AKSyww

AKTyww

AWLww

ADIyww

ADJyww

ADKyww

ADLyww

ADMyww

ADNyww

ADOyww

AEKyww

AESyww

AGVyww

AHXyww

AJFyww

AJGyww

AKWyww

AKXyww

Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.

5

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Absolute Maximum Ratings

Parameter

Input Voltage

Maximum

Unit

8

V

A

V

Output Current

1

Input, Output Voltage

ESD Classification

GND - 0.3 to V_IN+ 0.3

B

Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device

n Recommended Operating Conditions

Parameter

Rating

4.5 to 5.5

Unit

V

Supply Voltage

^oC

Ambient Temperature Range

Junction Temperature

- 40 to + 85

- 40 to + 125

^oC

n Thermal Information

Parameter

Maximum

Unit

SOT-89

180

^oC / W

Thermal Resistance (

)

θ_ja

SOT-223

SOT-89

SOT-223

SOT-89

SOT-223

SOT-89

SOT-223

160

18

^oC / W

mW

Thermal Resistance (

)

θ_jc

15

550

625

2750*

3300*

150

300

Internal Power Dissipation (P_D)

( T = 100^oC, No Heat Sink)

∆

Internal Power Dissipation (P_D)

mW

( T = 100^oC, With Heat Sink)

∆

^oC

Maximum Junction Temperature

Maximum Lead Temperature (10 Sec)

* Using twice the θjc for this calculation.

6

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Electrical Specifications

TA = 25^OC unless otherwise noted

Test Condition

Parameter

Input Voltage

Symbol

Min Typ Max Units

V_IN

Note 1

-1.5

7

V

Output Voltage Accuracy

V_O

I_O=1mA

1.5

%

1.3V<=V_O(NOM)<=1.4V

1900

1400

800

600

1.4V<V_O(NOM)<=2.0V

2.0V<V_O(NOM)<=2.8V

2.8V<V_O(NOM)

I_O=600mA

See

chart

Dropout Voltage

V_DROPOUT

mV

V_O=V_O(NOM)-2.0%

Output Current

I_O

I_LIM

I_SC

I_Q

V_O>1.2V

600

mA

Current Limit

V_O>1.2V

V_O<0.8V

600 800

300 600

Short Circuit Current

Quiescent Current

Ground Pin Current

I_O=0mA

30

35

50

A

µ

I_GND

I_O=1mA to 600mA

A

µ

1.3V <= V_O<= 1.4V -0.2

1.4V < V_O<= 2.0V -0.15

0.2

0.15

I_O=1mA

Line Regulation

REG_LINE

%

V_IN=V_O+1 to V_O+2

2.0V < V_O< 4.0V

V_O>= 4.0V

-0.1 0.02 0.1

-0.4 0.2 0.4

Load Regulation

REG_LOAD

OTS

I_O=1mA to 600mA

0.2

150

30

1

%

^oC

Over Temperature Shutdown

Over Temperature Hysterisis

V_OTemperature Coefficient

^oC

OTH

ppm/^oC

TC

30

f=1kHz

f=10kHz

f=100kHz

50

I_O=100mA

Power Supply Rejection

PSRR

eN

20

dB

C =2.2 F

µ

O

15

f=10Hz to 100kHz

Output Voltage Noise

Co=2.2 F

30

Vrms

µ

I_O=10mA,C_BYP=0 F

µ

Note1: V_IN(MIN)=V_OUT+V_DROPOUT

Note2: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage must be

applied before a current source load is applied.

7

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Detailed Description

n External Capacitors

The AME8805/8810 family of CMOS regulators con-

tain a PMOS pass transistor, voltage reference, error am-

plifier, over-current protection, and thermal shutdown.

The AME8805/8810 is stable with an output capacitor

to ground of 2.2µF or greater. Ceramic capacitors have

the lowest ESR, and will offer the best AC performance.

Conversely, Aluminum Electrolytic capacitors exhibit the

highest ESR, resulting in the poorest AC response. Un-

fortunately, large value ceramic capacitors are compara-

tively expensive. One option is to parallel a 0.1µF ce-

ramic capacitor with a 10µF Aluminum Electrolytic. The

benefit is low ESR, high capacitance, and low overall

cost.

The P-channel pass transistor receives data from the

error amplifier, over-current shutdown, and thermal pro-

tection circuits. During normal operation, the error am-

plifier compares the output voltage to a precision refer-

ence. Over-current and Thermal shutdown circuits be-

come active when the junction temperature exceeds

150^oC, or the current exceeds 600mA. During thermal

shutdown, the output voltage remains low. Normal op-

eration is restored when the junction temperature drops

below 120^oC.

A second capacitor is recommended between the in-

put and ground to stabilize Vin. The input capacitor should

be at least 0.1µF to have a beneficial effect.

The AME8805/8810 switches from voltage mode to cur-

rent mode when the load exceeds the rated output cur-

rent. This prevents over-stress. The AME8805/8810 also

incorporates current foldback to reduce power dissipa-

tion when the output is short circuited. This feature be-

comes active when the output drops below 0.8 volts, and

reduces the current flow by 65%. Full current is restored

when the voltage exceeds 0.8 volts.

All capacitors should be placed in close proximity to

the pins. A "Quiet" ground termination is desirable. This

can be achieved with a "Star" connection.

8

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

Ground Current vs. Input Voltage

Load Step (1mA-600mA)

45

40

35

30

25

20

15

10

5

C_L

C _IN

=2.2

µF

Output

85^O

C

25^O

C

I _Load

0

1

2

3

4

5

6

7

8

TIME( 20mS/DIV)

Input Voltage (V)

Drop Out Voltage vs. Output Voltage

Power Supply Rejection Ratio

1200

1000

800

600

400

200

0

-10

I_LOAD=600mA

100m A

C_L=2.2

µ

_BYP=0

F Tantalum

-20

-30

-40

-50

-60

-70

-80

C

10m A

100m A

100

µ

A

1m A

100

µ

A

1

2

3

4

5

6

10

1K

100K

10M

Output Voltage (V)

Frequency (Hz)

Safe Operating Area

Line Transient Response

SOT-223

Heat Sink

600

SOT-223

Free Air

SOT-89

Heat Sink

SOT-89

Free Air

V_{IN D C}=5.0V

C_L=2.2µF

100

10

0.1

1.0

8.0

TIME (2mS/DIV)

Input Output Votage Differential (V)

9

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

Noise Measurement

Overtemperature Shutdown

0

C_L=2.2

No Filter

µF

R _{LO AD}=6.6

Ω

TIME (20ms/DIV)

TIME (0.5Sec/DIV)

Current Limit Response

Short Circuit Response

C_{LO AD}=2.2

_IN=1

_{LO AD}<100m

µF

C

R

Ω

C_{LO AD}=2.2

_IN=1.0

_{LO AD}=3.3

V_{O U TN O M}=3.3V

µF

C

µF

R

Ω

TIME (2mS/DIV)

10

AME, Inc.

600mA CMOS LDO

AME8805 / 8810

n Package Dimension

SOT-223

Top View

Side View

MILLIMETERS

INCHES

MIN MAX

SYMBOLS

D

B1

MIN

0.02

0.60

2.90

0.24

6.30

3.30

MAX

0.10

0.84

3.15

0.38

6.71

3.71

c£

C

A₁

B

B₁

C

D

E

0.0008 0.0039

0.0236 0.0330

0.1140 0.1240

0.0094 0.0150

0.2480 0.2640

0.1299 0.1460

0.0906 BSC

13^o(4X)

H

E

e

2.30 BSC

e

Front View

13^o(4X)

1.40

6.70

0^o

1.80

7.30

10^o

0.0560

0.0702

F

A1

0.2638 0.2874

H

0^o

10^o

è

B

SOT-89

Side View

Top View

MILLIMETERS

INCHES

SYMBOLS

D

MIN

MAX

MIN

MAX

D1

1.39

1.60

0.05472 0.06299

0.0315REF

A

A₁

C

POLISH

0.8REF

0.35

4.39

1.35

2.28

0.44

4.60

1.83

3.60

0.01378 0.01732

0.17283 0.1811

0.05315 0.07205

0.08976 0.14173

0.1181REF

D

D₁

E

C

S1

e

3.00REF

e

0.70REF

1.50REF

0.0276REF

H

Front View

0.0590REF

S1

MATTE FINISH

A

POLISH

11

www.ame.com.tw

E-Mail: sales@ame.com.tw

Life Support Policy:

These products of AME, Inc. are not authorized for use as critical components in life-support

devices or systems, without the express written approval of the president

of AME, Inc.

AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and

advises its customers to obtain the latest version of relevant information.

AME, Inc. , December 2003

Document: 2006-DS8805/8810-K

Corporate Headquarter

AME, Inc.

2F, 189 Kang-Chien Road, Nei-Hu District

Taipei 114, Taiwan, R.O.C.

Tel : 886 2 2627-8687

U.S.A. (Subsidiary)

Analog Microelectronics, Inc.

3100 De La Cruz Blvd., Suite 201

Santa Clara, CA. 95054-2046

Tel: (408) 988-2388

Fax: 886 2 2659-2989

Fax: (408) 988-2489


型号：	AME8810IEGT
厂家：	ANALOG MICROELECTRONICS
描述：	600mA CMOS LDO 600毫安CMOS LDO
文件：	总12页 (文件大小：181K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AME8810IEGT [AME]

相关型号：

AME8810IEGTZ

AME8810JEGT

AME8810JEGTZ

AME8810KEGT

AME8810KEGTZ

AME8810LEGT

AME8810LEGTZ

AME8810MEGT

AME8810MEGTZ

AME8810NEGT

AME8810NEGTZ

AME8810OEGT