AME8821AEEV330Y datasheet, PDF

AME, Inc.

AME8821

n

General Description

250mA Hi-PSRR, Low-Quiescent LDO

with In-Rush Current Control

For USB Application

n

Applications

l

Instrumentation

l

Portable Electronics

l

Wireless Devices

l

Cordless Phones

l

PC Peripherals

l

Battery Powered Widgets

The AME8821 family of positive, linear regulators fea-

ture low quiescent current (17µA typ.) with low dropout

voltage, making them ideal for battery applications. The

space-saving SOT-25/TSOT-25 packages are attractive

for

“Pocket”

and

“Hand

Held”applications.

These rugged devices have both Thermal Shutdown,

and Current Limitation to prevent device failure under the

“Worst”

operating conditions. In application requires a

low noise regulated supply. The AME8821 family uses

the SR pin to program the output voltage’s slew rate to

control the in-rush current. This is specifically used in

the USB application where large load capacitance is

present at start-up.

The AME8821 also features a logic-enabled sleep mode

to shutdown the regulator, reducing quiescent current to

1µA typical at T

A

= 25

o

C.

The AME8821 is stable with an output capacitance of

4.7µF or larger.

n

Function Block Diagram

V

IN

* ENB or EN

10KΩ

AMP

V

ref

GND

R2

SR

Current Limit

/ Thermal

Protection

R1

V

OUT

* AME8821A: ENB, AME8821B: EN

n

Features

l

Guaranteed 250mA Output

l

17µA Quiescent Current

l

Over-Temperature Shutdown

l

Over-Current Limitation

l

Noise Reduction SR Capacitor

l

Power-Saving Shutdown Mode

l

Space-Saving SOT-25/TSOT-25 Packages

l

Factory Pre-set Output Voltages

l

Enable pin option

l

ENB active low enable

l

EN active high enable

l

All AME's Lead Free Products Meet RoHS

Standards

n

Typical Application

V

IN

1µF

IN

SR

AME8821A

ENB

GND

OUT

0.01µF

+

4.7µF

V

IN

1µF

IN

SR

AME8821B

EN

GND

OUT

0.01µF

+

4.7µF

Rev.A.01

1

AME, Inc.

AME8821

n

Pin Configuration

SOT-25/TSOT-25

Top View

5

4

250mA Hi-PSRR, Low-Quiescent LDO

with In-Rush Current Control

For USB Application

SOT-25/TSOT-25

Top View

AME8821AEEV

1. IN

2. GND

5

4

AME8821BEEV

1. IN

2. GND

AME8821

3. ENB

4. SR

5. OUT

AME8821

3. EN

4. SR

5. OUT

1

2

3

* Die Attach:

Conductive Epoxy

1

2

3

* Die Attach:

Conductive Epoxy

n

Pin Description

Pin Number

1

2

Pin Name

IN

GND

Pin Description

Input voltage pin.

It should be decoupled with 1

µ

F or greater capacitor.

Ground connection pin.

Enable pin.

When pulled low, the PMOS pass transistor turns off, current

consuming less than 1

µ

A.

Enable bar pin.

When pulled high, the PMOS pass transistor turns off, current

consuming less than 1

µ

A.

The SR(Slew Rate) terminal is used to control the V

OUT

in-rush

current.

LDO voltage regulator output pin.

It should be decoupled with a 4.7

µ

F or greater value low ESR

ceramic capacitor.

EN

3

ENB

4

SR

5

OUT

2

Rev.A.01

AME, Inc.

AME8821

n

Ordering Information

250mA Hi-PSRR, Low-Quiescent LDO

with In-Rush Current Control

For USB Application

AME8821 x x x x xxx x

Special Feature

Output Voltage

Number of Pins

Package Type

Operating Ambient Temperature Range

Pin Configuration

Operating Ambient

Temperature

Range

E: -40

O

C to 85

O

C

Configuration

Package

Type

Number

of

Pins

V: 5

Output

Voltage

Special Feature

A: 1.

(SOT-25)

2.

(TSOT-25)

3.

4.

5.

B: 1.

(SOT-25)

2.

(TSOT-25)

3.

4.

5.

IN

GND

ENB

SR

OUT

IN

GND

EN

SR

OUT

E: SOT-2X

180:

250:

285:

300:

330:

V=1.8V

V=2.5V

V=2.85V

V=3.0V

V=3.3V

Y: Lead free & Low profile

Z: Lead free

Rev.A.01

3

AME, Inc.

AME8821

n

Ordering Information

Part Number

AME8821AEEV180Z

AME8821AEEV180Y

AME8821AEEV250Z

AME8821AEEV250Y

AME8821AEEV285Z

AME8821AEEV285Y

AME8821AEEV300Z

AME8821AEEV300Y

AME8821AEEV330Z

AME8821AEEV330Y

AME8821BEEV180Z

AME8821BEEV180Y

AME8821BEEV250Z

AME8821BEEV250Y

AME8821BEEV285Z

AME8821BEEV285Y

AME8821BEEV300Z

AME8821BEEV300Y

AME8821BEEV330Z

AME8821BEEV330Y

250mA Hi-PSRR, Low-Quiescent LDO

with In-Rush Current Control

For USB Application

Marking*

BHXww

BHYww

BHZww

BIAww

BIBww

BICww

BIDww

BIEww

BIFww

BIGww

Output Voltage

1.8V

2.5V

2.85V

3.0V

3.3V

1.8V

2.5V

2.85V

3.0V

3.3V

Package

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

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

SOT-25

TSOT-25

Operating Ambient

Temperature Range

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

- 40

o

C to 85

o

C

Note: ww represents the date code and pls refer to the Date Code Rule before Package Dimension.

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

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

4

Rev.A.01

AME, Inc.

AME8821

n

Absolute Maximum Ratings

Parameter

Input Voltage

Output Current

Output Voltage

ESD Classification

250mA Hi-PSRR, Low-Quiescent LDO

with In-Rush Current Control

For USB Application

Maximum

6

P

D

/ (V

IN

- V

OUT

)

GND-0.3 to V

IN

+0.3

C*

Unit

V

mA

V

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

* HBM C: 4000V+

n

Recommended Operating Conditions

Parameter

Ambient Temperature Range

Junction Temperature Range

Storage Temperature Range

Symbol

T

A

T

J

T

STG

Rating

- 40 to 85

- 40 to 125

-65 to 150

Unit

o

C

n

Thermal Information

Parameter

Thermal Resistance*

(Junction to Case)

Thermal Resistance

(Junction to Ambient)

Internal Power Dissipation

Solder Iron (10 Sec)**

SOT-25

TSOT-25

Conductive Epoxy

Package

Die Attach

Symbol

θ

JC

θ

JA

P

D

Maximum

81

Unit

o

C/W

260

400

350

mW

o

C

* Measure

θ

JC

on center of molding compound if IC has no tab.

** MIL-STD-202G 210F

Rev.A.01

5

Parameter Name	Attribute value
Maker	AnalogMicroElectronics,Inc.(AME)
package instruction	,
Reach Compliance Code	compli

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