A6250AE3R-33 [AITSEMI]

LOW DROPOUT VOLTAGE REGULATOR;


型号：	A6250AE3R-33
厂家：	AiT Semiconductor
描述：	LOW DROPOUT VOLTAGE REGULATOR
文件：	总10页 (文件大小：526K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

DESCRIPTION

FEATURES

A6250A series is a group of positive voltage output,

low power consumption, low dropout voltage, three

terminal regulator. It can provide 250mA output

current when input / output voltage differential drops

to 430mV (V_OUT=2.8V). The very low power

consumption of A6250A (I_Q=1.0uA) can greatly

improve natural life of batteries.



Low Power Consumption:1.0uA(Typ.）

Maximum Output Current: 250mA

Small Dropout Voltage

210mV@100mA (V_OUT=2.8V)

430mV@250mA (V_OUT=2.8V)



Input Voltage Range:1.5V~8V

Output Voltage Range:1.1V~5.5V

(customized on command in 0.1V steps)

Highly Accurate:±2%(±1% customized)

Output Current Limit

A6250A can provide output value in the range of

1.1V~5.5V in 0.1V steps. It also can be customized

on command.



A6250A includes high accuracy voltage reference,

error amplifier, current limit circuit and output driver

module.

Available in SOT-23 and SOT89-3 Packages

APPLICATION

A6250A has well load transient response and good

temperature characteristic, and it uses trimming

technique to guarantee output voltage accuracy

within±2%.



Battery Powered equipment

Power Management of MP3、PDA、DSC、

Mouse、PS2 Games



Reference Voltage Source Regulation after

Switching Power

The A6250A is available in SOT-23 and SOT89-3

packages.

TYPICAL APPLICATION

ORDERING INFORMATION

Package Type

SOT-23

Part Number

A6250AE3R-XX

A6250AE3VR-XX

A6250AK3R-XX

A6250AK3VR-XX

SOT89-3

XX: Output Voltage

30=3.0V; 33 = 3.3V

V: Halogen free Package

Note

R: Tape & Reel

AiT provides all RoHS products

Suffix “ V “ means Halogen free Package

NOTE: Input capacitor (C_IN=1uF) and Output capacitor (C_OUT=1uF)

are recommended in all application circuit. Ceramic capacitor is

recommended.

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 1 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

PIN DESCRIPTION

Top View

Pin #

Top View

Symbol

Function

Ground Pin

SOT-23

SOT89-3

GND

V_OUT

V_IN

Output Voltage

Supply Voltage Input

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 2 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

ABSOLUTE MAXIMUM RATINGS

Max Input Voltage

10V

125°C

T_J, Operating Junction Temperature

T_A, Ambient Temperature

-40°C ~85°C

250mW

SOT-23

SOT89-3

Power Dissipation

500mW

T_S, Storage Temperature

Lead Temperature & Time

-40°C ~150°C

260°C,10s

Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and

operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not

implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

Parameter

Min

-40

Max.

Unit

Input Voltage Range

Ambient Temperature

°C

THERMAL RESISTANCE

Package

SOT-23

θ_JA

θ_JC

250°C/W

130°C/W

NOTE: Thermal Resistance is specified with approximately 1 square of 1 oz copper.

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 3 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

ELECTRICAL CHARACTERISTICS

Test Conditions: C_IN=1uF, C_OUT=1uF, T_A=25°C, Unless Otherwise Specified

Parameter

Input Voltage

Symbol

V_IN

Conditions

Min. Typ.

Max.

Unit

V_OUT

X1.02

Output Voltage

V_OUT

x0.98

Maximum Output

_OUT(Max.)

V_IN-V_OUT=1V

250

%/V

Current

V_OUT≤1.8V

V_OUT≥1.8V

600

300

1000

600

Input-Output Voltage

Differential

Dropout Voltage I_OUT=100mA

ΔV_OUT

I_OUT=10mA

Line Regulation

Load Regulation

0.2

0.3

ΔV_{IN ×}V_OUT

1.5V≤V_IN≤8V

V_IN=Set V_OUT+1V

1mA≤I_OUT≤100mA

V_IN=Set V_OUT+1V

ΔV_OUT

1.0

100

Quiescent Current

Output Voltage

I_Q

5.0

ΔV_OUT

I_OUT=10mA

ppm/°C

Temperature Coefficient

ΔT _×V_OUT

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 4 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

TYPICAL PERFORMANCE CHARACTERISTICS

Load regulation (V_IN=4V)

Line regulation

Dropout Voltage

PSRR

I_Q(V_OUT=2.8V)

Current limit

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 5 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

Line transient response

C_IN=C_OUT=1uF, I_OUT=10mA, V_OUT=2.8V

Load transient response

C_IN=C_OUT=1uF, V_IN=4V, V_OUT=2.8V

Start up

10. Output Voltage vs. Output Current V_OUT=2.8V

11. Quiescent Current vs. Temperature

V_IN=5.0V, C_IN=COUT=1uF

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 6 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

BLOCK DIAGRAM

DETAILED INFORMATION

A6250A is a series of low dropout voltage and low power consumption three pins regulator. Its application

circuit is very simple, which only needs two outside capacitors. It is composed of these modules: high

accuracy voltage reference, current limit circuit, error amplifier, output driver and power transistor.

Current Limit module can keep chip and power system away from danger when load current is more than

250mA.

A6250A uses trimming technique to assure the accuracy of output value within ±2%, at the same time,

temperature compensation is elaborately considered in this chip, which makes A6250A’s temperature

coefficient within 100ppm/℃

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 7 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

PACKAGE INFORMATION

Dimension in SOT-23 Package (Unit: mm)

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 8 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

Dimension in SOT89-3 (Unit: mm)

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 9 -

A6250A

LOW DROPOUT VOLTAGE REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

250mA LOW CONSUMPTION LINEAR REGULATOR

IMPORTANT NOTICE

AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to

discontinue any integrated circuit product or service without notice, and advises its customers to obtain the

latest version of relevant information to verify, before placing orders, that the information being relied on is

current.

AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to

be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT

products in such applications is understood to be fully at the risk of the customer. As used herein may involve

potential risks of death, personal injury, or servers property, or environmental damage. In order to minimize

risks associated with the customer's applications, the customer should provide adequate design and

operating safeguards.

AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT

warrants the performance of its products of the specifications applicable at the time of sale.

REV2.3

- SEP 2010 RELEASED, MAR 2016 UPDATED -

- 10 -

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