AME8802ZEEVL_技术文档

AME

AME8802

300mA CMOS LDO

n General Description

n Functional Block Diagram

TheAME8802 family of positive, linear regulators fea-

ture low quiescent current (30mA typ.) with low dropout

voltage, making them ideal for battery applications. The

space-saving SOT-25 package is attractive for "Pocket"

and "Hand Held" applications.

OUT

IN

Overcurrent

Shutdown

Thermal

Shutdown

These rugged devices have both Thermal Shutdown,

and Current Fold-back to prevent device failure under the

"Worst" of operating conditions.

EN

R1

V

x110%

ref

An additional feature is a "PowerGood" detector, which

pulls low when the output is out of regulation.

AMP

PG

The AME8802 is stable with an output capacitance of

2.2mF or greater.

R2

V

ref

x90%

V

=1.215V

ref

GND

n Features

Note: If output voltage specification is lower than

1.215V, Vref will be trimmed to 1.2V

l Very Low Dropout Voltage

l Guaranteed 300mA Output

l Accurate to within 1.5%

l 30mA Quiescent Current

l Over-Temperature Shutdown

l Current Limiting

trimmed to 1.2V.

n Typical Application

l Short Circuit Current Fold-back

l Power Good Output Function

l Power-Saving Shutdown Mode

l Space-Saving SOT-25

INPUT

OUTPUT

IN

OUT

EN

AME8802

PG

GND

l Factory Pre-set Output Voltages

l Low Temperature Coefficient

C2

2.2mF

C1

5V

1mF

l All AME's Lead Free Products Meet RoHS

Standards

nApplications

l Instrumentation

l Portable Electronics

l Wireless Devices

l Cordless Phones

l PC Peripherals

l Battery Powered Widgets

l Electronic Scales

Rev.K.02

1

AME

AME8802

300mA CMOS LDO

n Pin Configuration

SOT-25

Top View

5

4

AME8802

1. V_IN

2. GND

3. EN

AME8802

4. PG

5. V_OUT

* Die Attach:

1

2

3

Conductive Epoxy

n Ordering Information

AME8802 x x x x x

Special Feature

Number of Pins

Package Type

Operating Ambient Temperature Range

Product Grade or Option

Operating Ambient

Num b e r

of

Pins

Product Grade

or Option

Tem p e rature

Range

Package Type

Specia l Fe a ture

-40^OC to +85^OC

A: 3.3V

1: 1.3V

2: 2.0V

3: 4.2V

4: 4.0V

E:

E: SOT-2X

V: 5

L: Low Profile

Y: Lead Free & Low Profile

Z: Lead Free

B: 3.0V

C: 2.8V

D: 2.5V

E: 3.8V

F: 3.6V

G: 3.5V

H: 2.7V

I: 3.4V

J: 2.85V

K: 3.7V

L: 1.5V

M : 1.8V

N: 2.9V

O: 3.1V

P: 4.1V

Q: 4.75V

R: 2.65V

S: 5.0V

U: 3.2V

V: 3.15V

W : 2.3V

Y: 1.9V

Z: 1.7V

Rev.K.02

2

AME

AME8802

300mA CMOS LDO

n Ordering Information

Operating Ambient

Temperature Range

Part Number

Marking*

Output Voltage Package

- 40^oC to +85^oC

AME8802AEEV

AME8802AEEVL

AME8802AEEVY

AME8802AEEVZ

AME8802BEEV

AME8802BEEVL

AME8802BEEVY

AME8802BEEVZ

AME8802CEEV

AME8802CEEVL

AME8802CEEVY

AME8802CEEVZ

AME8802DEEV

AME8802DEEVL

AME8802DEEVY

AME8802DEEVZ

AME8802EEEV

AME8802EEEVL

AME8802EEEVY

AME8802EEEVZ

AME8802FEEV

AME8802FEEVL

AME8802FEEVY

AME8802FEEVZ

AAKww

AALww

AAMww

AANww

AAOww

ABPww

3.3V

3.0V

2.8V

2.5V

3.8V

3.6V

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

Note: ww represents the date code and pls refer toDate Code Rule before PackageDimension.

* A line on top of the first character represents lead free plating such as AAKww.

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

Rev.K.02

3

AME

AME8802

300mA CMOS LDO

n Ordering Information (contd.)

Operating Ambient

Temperature Range

Part Number

Marking*

Output Voltage Package

- 40^oC to +85^oC

AME8802GEEV

AME8802GEEVL

AME8802GEEVY

AME8802GEEVZ

AME8802HEEV

AME8802HEEVL

AME8802HEEVY

AME8802HEEVZ

AME8802IEEV

ACGww

AEHww

AEPww

AGRww

AHTww

AJMww

3.5V

2.7V

3.4V

2.85V

3.7V

1.5V

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

AME8802IEEVL

AME8802IEEVY

AME8802IEEVZ

AME8802JEEV

AME8802JEEVL

AME8802JEEVY

AME8802JEEVZ

AME8802KEEV

AME8802KEEVL

AME8802KEEVY

AME8802KEEVZ

AME8802LEEV

AME8802LEEVL

AME8802LEEVY

AME8802LEEVZ

Rev.K.02

4

AME

AME8802

300mA CMOS LDO

n Ordering Information

Operating Ambient

Temperature Range

Part Number

Marking*

Output Voltage Package

- 40^oC to +85^oC

AME8802MEEV

AME8802MEEVL

AME8802MEEVY

AME8802MEEVZ

AME8802NEEV

AME8802NEEVL

AME8802NEEVY

AME8802NEEVZ

AME8802OEEV

AME8802OEEVL

AME8802OEEVY

AME8802OEEVZ

AME8802SEEV

AME8802SEEVL

AME8802SEEVY

AME8802SEEVZ

AJNww

AKQww

AKRww

AQYww

1.8V

2.9V

3.1V

5.0V

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

AME8802UEEV

AME8802UEEVL

AME8802UEEVY

AME8802UEEVZ

ASDww

3.2V

SOT-25

TSOT-25

SOT-25

Rev.K.02

5

AME

AME8802

300mA CMOS LDO

n Absolute Maximum Ratings

Parameter

Input Voltage

Maximum

Unit

V

8

P_D/ (V_IN- V_O)

GND - 0.3 to V_IN+ 0.3

B*

Output Current

mA

V

Output Voltage

ESD Classification

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

* HBM B:2000V~3999V

n Recommended Operating Conditions

Parameter

Symbol

Rating

- 40 to +85

- 40 to +125

Unit

^oC

Ambient Temperature Range

Junction Temperature Range

T_A

T_J

^oC

n Thermal Information

Parameter

Package

Die Attach

Symbol

Maximum

Unit

Thermal Resistance *

(Junction to Case)

81

q_JC

^oC / W

Thermal Resistance

(Junction to Ambient)

SOT-25

Conductive Epoxy

260

400

q_JA

Internal Power Dissipation

P_D

mW

^oC

Maximum Junction Temperature

Solder Iron (10Sec)**

150

350

* Measure q_JCon center of molding compound if IC has no tab.

** MIL-STD-202G 210F

Rev.K.02

6

AME

AME8802

300mA CMOS LDO

n Electrical Specifications

TA = 25^OC unless otherwise noted

Test Condition

Parameter

Input Voltage

Symbol

V_IN

Min

Note 1

-1.5

Typ Max

Units

V

7

Output Voltage Accuracy

V_O

I_O=1mA

1.5

%

1.2V<=V_O(NOM)<=2.0V

1300

I_O=300mA

See

chart

mV

Dropout Voltage

V_DROPOUT

2.0V<V_O(NOM)<=2.8V

2.8V<V_O(NOM)

400

V_O=V_O(NOM)-2.0%

300

Output Current

I_O

I_LIM

I_SC

I_Q

V_O>1.2V

300

mA

Current Limit

V_O>1.2V

V_O<0.8V

450

Short Circuit Current

Quiescent Current

Ground Pin Current

150 300

I_O=0mA

30

35

50

A

m

I_GND

I_O=1mA to 300mA

A

m

1.2V <= V_O<= 1.4V

-0.2

-0.15

-0.1

-0.4

-1

0.2

I_O=1mA

V_IN=V_O+1 to

V_O+2

1.4V < V_O<= 2.0V

2.0V< V_O< 4.0V

4.0V <= Vo

0.15

Line Regulation

REG_LINE

%

0.02 0.1

0.2

150

30

0.4

1

Load Regulation

REG_LOAD

OTS

I_O=1mA to 300mA

%

^oC

Over Temerature Shutdown

Over Temerature Hysterisis

V_OTemperature Coefficient

OTH

ppm/^oC

TC

30

f =100Hz

f =1kHz

60

I_O=100mA

Power Supply Rejection

PSRR

50

dB

C =2.2 F

m

O

f =10kHz

20

f=10Hz to 100kHz

I_O=10mA

Output Voltage Noise

EN Input Threshold

EN Input Bias Current

eN

Co=2.2 F

30

Vrms

m

V_EH

V_EL

I_EH

V_IN=2.7V to 7V

2.0

0

Vin

0.4

0.1

0.5

1

V

V_IN=2.7V to 7V

V_EN=V_IN, V_IN=2.7V to 7V

V_EN=0V, V_IN=2.7V to 7V

V_IN=5V, V_O=0V, V_EN<V_EL

I_O=0.4mA, V_EN<V_EL

2.5V <= V_O(NOM)<= 5.0V

1.2V <= V_O(NOM)< 2.5V

2.5V <= V_O(NOM)<= 5.0V

1.2V <= V_O(NOM)< 2.5V

V_PG=7V

A

m

I_EL

A

m

Shutdown Supply Current

Shutdown Output Voltage

I_SD

0.5

A

m

V_O,SD

0

0.4

85

V

Output Under Voltage

Output Over Voltage

V_UV

V_OV

%V_O(NOM)

75

115

125

%V_O(NOM)

PG Leakage Current

PG Voltage Rating

PG Voltage Low

I_LC

1

7

A

m

V_PG

V_OL

V_Oin regulation

V

I_SINK=0.4mA

0.4

Note1:V_IN(min)=V_OUT+V_DROPOUT

Rev.K.02

7

AME

AME8802

300mA CMOS LDO

n Detailed Description

n Enable

The Enable pin normally floats high. When actively,

pulled low, the PMOS pass transistor shuts off, and all

internal circuits are powered down. In this state, the qui-

escent current is less than 1mA. This pin behaves much

like an electronic switch.

The AME8802 family of CMOS regulators contain a

PMOS pass transistor, voltage reference, error amplifier,

over-current protection, thermal shutdown, and power

good function.

The P-channel pass transistor receives data from the

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

tection circuits. During normal operation, the error ampli-

fier compares the output voltage to a precision reference.

Over-current and Thermal shutdown circuits become ac-

tive when the junction temperature exceeds 150^oC, or

the current exceeds 300mA. During thermal shutdown,

the output voltage remains low. Normal operation is re-

stored when the junction temperature drops below 120^oC.

n Power Good

TheAME8802 includes the PowerGood feature. When

the output is not within +15% of the specified voltage, it

pulls low. This can occur under the following conditions:

1) Input Voltage too low.

2) DuringOver-Temperature.

3) During Over-Current.

4) If output is pulled up.

The AME8802 switches from voltage mode to current

mode when the load exceeds the rated output current.

This prevents over-stress. The AME8802 also incorpo-

rates current foldback to reduce power dissipation when

the output is short circuited. This feature becomes ac-

tive when the output drops below 0.8volts, and reduces

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

the voltage exceeds 0.8 volts.

(Note: PG pin is an open-drain output.)

n External Capacitors

The AME8802 is stable with an output capacitor to

ground of 2.2mF or greater. Ceramic capacitors have the

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

versely,Aluminum Electrolytic capacitors exhibit the high-

est ESR, resulting in the poorest AC response. Unfortu-

nately, large value ceramic capacitors are comparatively

expensive. One option is to parallel a 0.1mF ceramic

capacitor with a 10mF Aluminum Electrolytic. The benefit

is low ESR, high capacitance, and low overall cost.

A second capacitor is recommended between the in-

put and ground to stabilize Vin. The input capacitor should

be at least 0.1mF to have a beneficial effect.

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.

Rev.K.02

8

AME

AME8802

300mA CMOS LDO

Ground Current vs. Input Voltage

Load Step (1mA-300mA)

45

40

35

30

25

20

15

10

5

C

_L=2.2mF

Output

C

_IN=2.2mF

85^O

C

25^O

C

I_Load

0

1

2

3

4

5

6

7

8

TIME(20mS/DIV)

Input Voltage (V)

Chip Enable Transient Response

C_L=2mF

R_L=10W

C_L=2mF

R_L=10W

0

C_BYP=1000pF

0

TIME (1mS/DIV)

Drop Out Voltage vs. Output Voltage

Drop Out Voltage vs. Load Current

1200

1000

800

1200

1000

800

V_OUT=1.3V

V_OUT=1.5V

I_O=100mA

600

V_OUT=1.8V

I_O=200mA

I_O=300mA

400

V_OUT=3.8V

V_OUT=4.0V

V_OUT=3.0V

V_OUT=3.3V

V_OUT=3.5V

Top to Bottom

V_OUT=2.3V

V_OUT=2.5V

V_OUT=2.8V

200

0

200

5

3

4

1.31.5

2

0

50

100

150

200

250

300

Load Current (mA)

Output Voltage (V)

Rev.K.02

9

AME

AME8802

300mA CMOS LDO

Power Supply Rejection Ratio

Short Circuit Response

0

R

-10

^LOAD=100 W

R _SHORT

W

=0.1

100mA

C =2.2mF Tantalum

LL

-20

-30

-40

-50

-60

-70

-80

C _BYP=0

0

10mA

100mA

100 m

A

1mA

100 m

A

10

1K

100K

10M

TIME (2mS/DIV)

Frequency (Hz)

Overtemperature Shutdown

Current Limit Response

R_Load=3.3 W

0

W

R_LOAD=6.6

0

TIME (0.5Sec/DIV)

TIME (2mS/DIV)

Noise Measurement

Line Transient Response

C_L=2.2mF

No Filter

TIME (20ms/DIV)

TIME (2mS/DIV)

Rev.K.02

10

AME

AME8802

300mA CMOS LDO

Stability vs. ESR vs. I_Load

10000

1000

100

10

10000

1000

100

10

Unstable Region

C_L=1mF

C_L=2mF

Stable Region

1

0.1

Untested Region

0.01

0

50

100

150

200

0

50

100

150

200

ILOAD (mA)

Stability vs. ESR vs. I_Load

10000

1000

100

10

10000

1000

Unstable Region

C_L=10mF

C_L=3mF

100

10

1

Stable Region

1

0.1

Untested Region

0.1

Untested Region

0.01

0.001

0.01

0

50

100

150

200

0

50

100

150

200

ILOAD (mA)

Safe Operating Area

300

100

SOT-23-5

10

1.0

8.0

0.1

Input-Output Voltage Differential (V)

Rev.K.02

11

AME

AME8802

300mA CMOS LDO

Quiescent Current vs. Temp.

Load Regulation vs. Temp.

35

34

33

32

31

30

29

28

27

0.58

0.56

0.54

0.52

0.50

0.48

0.46

0.44

0.42

0.40

-45

-5

25

55

85

-45

-5

25

55

85

Temperature (^oC)

Shut Down Current vs. Temp.

EN pin LO bias Current vs. Temp.

1.0

0.9

0.8

0.7

0.6

0.5

0.4

-0.20

-0.25

-0.30

-0.35

-0.40

-0.45

-0.50

0.3

0.2

0.1

0.0

-45

-5

25

55

85

-45

-5

25

55

85

Temperature (^oC)

Dropout Voltage vs. Temp.

PG VOL vs. Temp.

0.45

0.40

0.35

0.30

0.25

0.20

220

210

200

190

180

170

160

150

0.15

-45

-5

25

55

85

-45

-5

25

55

85

Temperature (^oC)

Rev.K.02

12

AME

AME8802

300mA CMOS LDO

n Date Code Rule

Marking

Date Code

Year

xxx0

xxx1

xxx2

xxx3

xxx4

xxx5

xxx6

xxx7

xxx8

xxx9

A

W

n Tape and Reel Dimension

SOT-25

P

W

AME

PIN 1

Carrier Tape, Number of Components Per Reel and Reel Size

Package

Carrier Width (W)

Pitch (P)

Part Per Full Reel

Reel Size

SOT-25

8.0±0.1 mm

4.0±0.1 mm

3000pcs

180±1 mm

Rev.K.02

13

AME

AME8802

300mA CMOS LDO

n Tape and Reel Dimension

TSOT-25

P

W

AME

PIN 1

Carrier Tape, Number of Components Per Reel and Reel Size

Package

Carrier Width (W)

Pitch (P)

Part Per Full Reel

Reel Size

TSOT-25

8.0±0.1 mm

4.0±0.1 mm

3000pcs

180±1 mm

Rev.K.02

14

AME

AME8802

300mA CMOS LDO

n Package Dimension

SOT-25

Top View

Side View

MILLIMETERS

INCHES

MIN MAX

D

SYMBOLS

θ1

MIN

MAX

1.20REF

0.0472REF

A

A₁

b

0.00

0.30

2.70

1.40

0.15

0.55

3.10

1.80

0.0000 0.0059

0.0118 0.0217

0.1063 0.1220

0.0551 0.0709

0.07480 BSC

D

E

e

PIN 1

1.90 BSC

S1

e

2.60

3.00

0.10236 0.11811

0.0146BSC

H

L

0.37BSC

Front View

0^o

10^o

0^o

10^o

1

q

0.95BSC

0.0374BSC

S₁

b

TSOT-25

Top View

D

Side View

MILLIMETERS

INCHES

SYMBOLS

MIN

0.90

0.30

0.09

2.70

1.40

MAX

1.25

0.50

0.25

3.10

1.80

MIN

MAX

θ1

0.0354 0.0492

0.0118 0.0197

0.0035 0.0098

0.1063 0.1220

0.0551 0.0709

0.07480 BSC

A+A₁

b

c

D

E

e

PIN 1

1.90 BSC

S1

e

2.40

3.00

0.09449 0.11811

0.0138BSC

H

L

0.35BSC

0^o

10^o

0^o

10^o

1

q

Front View

0.95BSC

0.0374BSC

S₁

b

Rev.K.02

15

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.

ã AME, Inc. , November 2008

Document: 2006/2095-DS8802-K.02

Corporate Headquarter

AME, Inc.

2F, 302 Rui-Guang Road, Nei-Hu District

Taipei 114, Taiwan.

Tel: 886 2 2627-8687

Fax: 886 2 2659-2989


型号：	AME8802ZEEVL
厂家：	ANALOG MICROELECTRONICS
描述：	300mA CMOS LDO 300毫安CMOS LDO
文件：	总16页 (文件大小：172K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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