A6800NR-50 [AITSEMI]

LOW DROPOUT REGULATOR ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS;


型号：	A6800NR-50
厂家：	AiT Semiconductor
描述：	LOW DROPOUT REGULATOR ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS
文件：	总15页 (文件大小：846K)
中文：	中文翻译
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A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

DESCRIPTION

FEATURES

The A6800 series are highly accurate, low noise,

LDO Voltage Regulators that are capable of

providing an output current that is in excess of

800mA with a maximum dropout voltage of 1.0V at

800mA（A6800-1.8V）.This series contains three

fixed output voltages of 1.2V, 1.8V and 2.5V that

have no minimum load requirement to maintain

regulation. On chip trimming adjusts the



Output Current in Excess of 800mA

Dropout Voltage:115mV@ I_OUT=100mA

（A6800-1.8V）



Operating Voltage Range: 2.5V～15V

Highly Accuracy: ±2％

Adjustable Output Voltage Option

Standby Current: 52uA(TYP.)

High Ripple Rejection: 70dB@1KHz(A6800-1.8V)

Line Regulation: 2mV(TYP.)

reference/output voltage to within ±2% accuracy.

Internal protection features consist of output current

limiting, safe operating area compensation, and

thermal shutdown. The A6800 series can operate

with up to 15V input.

Temperature Stability≤0.5%

Thermal Shutdown Protection：160℃

Available in SOT-223 Package

APPLICATION

The A6800 is available in SOT-223 package.



Consumer and Industrial Equipment Point of

Regulation

ORDERING INFORMATION



Switching Power Supply Post Regulation

Hard Drive Controllers

Battery Chargers

Package Type

SOT-223

Part Number

A6800NR-XX

A6800NVR-XX

TYPICAL APPLICATION

XX: Output Voltage

33=3.3V; 50=5.0V

V: Halogen free Package

R: Tape & Reel

Note

SPQ: 2,500pcs/Reel

AiT provides all RoHS products

Suffix “ V “ means Halogen free Package

REV1.0

- DEC 2013 RELEASED -

- 1 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

PIN DESCRIPTION

Top View

Pin #

Symbol

GND

V_OUT

V_IN

Function

Ground

Output

Power Input

REV1.0

- DEC 2013 RELEASED -

- 2 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

ABSOLUTE MAXIMUM RATINGS

V_IN, Input Voltage

18V

1.1A

I_OUT, Output Current

V_OUT, Output Voltage

V_SS-0.3V～V_IN+0.3V

P_D, Power Dissipation

SOT-223

750mW

-40℃~＋125℃

-40℃~＋150℃

260℃，4sec

T_OPR, Operating Temperature Range

T_STG, Storage Temperature Range

Lead Temperature

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.

REV1.0

- DEC 2013 RELEASED -

- 3 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

ELECTRICAL CHARACTERISTICS

A6800-1.2V

V_IN= V_OUT+1.3V，C_IN=C_L=10uF，T_A=25℃, unless otherwise noted

Parameter

Symbol

Conditions

Min.

Typ.

Max. Unit

V_OUT(E) I_OUT=10mA,

V_OUT(T)

Output Voltage

NOTE2

NOTE1

V_IN= V_OUT+1.3V

0.98

1.02

Maximum Output Current

Load Regulation

I_OUTMAXV_IN= V_OUT+1.3V

800

V_IN= V_OUT+1.3V,

ΔV_OUT

1mA≤I_OUT≤800mA

V_DIF1

V_DIF2

V_DIF3

I_SS

I_OUT=100mA

195

665

1250

Dropout Voltage ^NOTE3

I_OUT=400mA

I_OUT=800mA

Quiescent Current

Line Regulation

V_IN= V_OUT+1.3V

I_OUT=0mA

ΔV_OUT

V_OUT+1.3V ≤V_IN≤18V

IOUT=100mA,1KHz

V_IN=4.2V+

1Vp-pAC

IOUT=200mA,1KHz

IOUT=500mA,1KHz

Ripple Rejection Rate

A6800-1.8V

PSRR

V_IN= V_OUT+1.2V，C_IN=C_L=10uF，T_A=25℃, unless otherwise noted

Parameter Symbol Conditions

Min.

Typ.

Max. Unit

V_OUT(E) I_OUT=10mA,

V_OUT(T)

Output Voltage

NOTE 2

NOTE 1

V_IN= V_OUT+1.2V

0.98

1.02

Maximum Output Current

Load Regulation

I_OUTMAXV_IN= V_OUT+1.2V

800

V_IN= V_OUT+1.2V,

ΔV_OUT

1mA≤I_OUT≤800mA

V_DIF1

V_DIF2

V_DIF3

I_SS

I_OUT=100mA

115

450

940

Dropout Voltage ^{NOTE 3}

I_OUT=400mA

I_OUT=800mA

Quiescent Current

Line Regulation

V_IN= V_OUT+1.2V

I_OUT=0mA

ΔV_OUT

V_OUT+1.2V ≤V_IN≤18V

IOUT=100mA,1KHz

V_IN=4.8V+

1Vp-pAC

IOUT=200mA,1KHz

IOUT=500mA,1KHz

Ripple Rejection Rate

PSRR

REV1.0

- DEC 2013 RELEASED -

- 4 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

A6800-2.5V

V_IN= V_OUT+1.2V，C_IN=C_L=10uF，T_A=25℃, unless otherwise noted

Parameter Symbol Conditions

Min.

Typ.

Max. Unit

V_OUT(E) I_OUT=10mA,

V_OUT(T)

Output Voltage

NOTE 2

NOTE 1

V_IN= V_OUT+1.2V

0.98

1.02

Maximum Output Current

Load Regulation

I_OUTMAXV_IN= V_OUT+1.2V

1000

V_IN= V_OUT+1.2V,

ΔV_OUT

1mA≤I_OUT≤1000mA

V_DIF1

V_DIF2

V_DIF3

I_SS

I_OUT=100mA

450

990

Dropout Voltage ^{NOTE 3}

I_OUT=500mA

I_OUT=1000mA

V_IN= V_OUT+1.2V

I_OUT=0mA

Quiescent Current

Line Regulation

ΔV_OUT

V_OUT+1.2V ≤V_IN≤18V

IOUT=100mA,1KHz

V_IN=5.5V+

1Vp-pAC

IOUT=200mA,1KHz

IOUT=500mA,1KHz

Ripple Rejection Rate

A6800-3.3V

PSRR

V_IN= V_OUT+1.2V，C_IN=C_L=10uF，T_A=25℃, unless otherwise noted

Parameter Symbol Conditions

Min.

Typ.

Max. Unit

V_OUT(E) I_OUT=10mA,

V_OUT(T)

Output Voltage

NOTE 2

NOTE 1

V_IN= V_OUT+1.2V

0.98

1.02

Maximum Output Current

Load Regulation

I_OUTMAXV_IN= V_OUT+1.2V

800

V_IN= V_OUT+1.2V,

ΔV_OUT

1mA≤I_OUT≤800mA

V_DIF1

V_DIF2

V_DIF3

I_SS

I_OUT=100mA

I_OUT=500mA

I_OUT=800mA

V_IN= V_OUT+1.2V

I_OUT=0mA

400

680

Dropout Voltage ^{NOTE 3}

Quiescent Current

Line Regulation

ΔV_OUT

V_OUT+1.2V ≤V_IN≤18V

I_OUT=10mA,

Thermal Shutdown

Protection

T_sd

160

1.1

℃

V_IN= V_OUT+1.2V

V_IN=5.0V

Over Current Protection

I_limit

REV1.0

- DEC 2013 RELEASED -

- 5 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

A6800-5.0V

V_IN= V_OUT+1.2V，C_IN=C_L=10uF，T_A=25℃, unless otherwise noted

Parameter Symbol Conditions

Min.

Typ.

Max. Unit

V_OUT(E) I_OUT=10mA,

V_OUT(T)

Output Voltage

NOTE 2

NOTE 1

V_IN= V_OUT+1.2V

0.98

1.02

Maximum Output Current

Load Regulation

I_OUTMAXV_IN= V_OUT+1.2V

800

V_IN= V_OUT+1.2V,

ΔV_OUT

1mA≤I_OUT≤800mA

V_DIF1

V_DIF2

V_DIF3

I_SS

I_OUT=100mA

I_OUT=500mA

I_OUT=800mA

V_IN= V_OUT+1.2V

I_OUT=0mA

300

500

Dropout Voltage ^{NOTE 3}

Quiescent Current

Line Regulation

ΔV_OUT

V_OUT+1.2V ≤V_IN≤18V

I_OUT=10mA,

Thermal Shutdown

Protection

T_sd

160

1.1

℃

V_IN= V_OUT+1.2V

V_IN=6.5V

Over Current Protection

I_limit

NOTE1: V_OUT(T): Specified Output Voltage

NOTE2: V_OUT(E): Effective Output Voltage (ie. The output voltage when “V_OUT(T) +1.2V”is provided at the V_INpin while maintaining a

certain I_OUTvalue.)

NOTE3:V_DIF：V_IN1–V_OUT(E)’

V_IN1:The input voltage when V_OUT(E)’ appears as input voltage is gradually decreased.

V_OUT(E)’=A voltage equal to 98% of the output voltage whenever an amply stabilized I_OUTand {V_OUT(T) +1.2V} is input.

REV1.0

- DEC 2013 RELEASED -

- 6 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

TYPICAL PERFORMANCE CHARACTERISTICS

Output Voltage vs. Output Current

A6800-1.2V（V_IN=V_OUT+1.3V）

A6800-1.8V（V_IN=V_OUT+1.2V）

A6800-2.5V（V_IN=V_OUT+1.2V）

A6800-3.3V（V_IN=V_OUT+1.2V）

Output Voltage vs. Temperature

A6800-1.2V（V_IN=V_OUT+1.3V , I_OUT=10mA）

A6800-1.8V（V_IN=V_OUT+1.2V , I_OUT=10mA）

REV1.0

- DEC 2013 RELEASED -

- 7 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

A6800-2.5V（V_IN=V_OUT+1.2V , I_OUT=10mA）

A6800-3.3V（V_IN=V_OUT+1.2V , I_OUT=10mA）

Dropout Voltage vs. Output Current (T_A= 25°C)

A6800-1.2V

A6800-1.8V

A6800-2.5V

A6800-3.3V

REV1.0

- DEC 2013 RELEASED -

- 8 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

Ripple Rejection vs. Frequency (I_O=100mA)

A6800-1.2V

A6800-1.8V

A6800-2.5V

Output Voltage vs. Input Voltage (T_A= 25°C)

A6800-1.2V

A6800-1.8V

REV1.0

- DEC 2013 RELEASED -

- 9 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

A6800-2.5V

A6800-3.3V

Quiescent Current vs. Input Voltage

A6800-1.2V

A6800-1.8V

A6800-2.5V

A6800-3.3V

REV1.0

- DEC 2013 RELEASED -

- 10 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

BLOCK DIAGRAM

REV1.0

- DEC 2013 RELEASED -

- 11 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

DETAILED INFORMATION

Applications Information

Input Bypass Capacitor

An input capacitor is recommended. A 10uF tantalum on the input is a suitable input bypassing for almost all

applications.

Output Capacitor

The output capacitor is critical in maintaining regulator stability, and must meet the required conditions for

both minimum amount of capacitance and ESR (Equivalent Series Resistance).The minimum output

capacitance required by the A6800 is 10uF, if a tantalum capacitor is used. Any increase of the output

capacitance will merely improve the loop stability and transient response. The ESR of the output capacitor

should be less than 0.5Ω.

Load Regulation

The A6800 regulates the voltage that appears between its output and ground pins, or between its output and

adjust pins. In some cases, line resistances can introduce errors to the voltage across the load. To obtain the

best load regulation, a few precautions are needed. Figure1, shows a typical application using a fixed output

regulator. The Rt1 and Rt2 are the line resistances. It is obvious that the V_LOADis less than the V_OUTby the

sum of the voltage drops along the line resistances. In this case, the load regulation seen at the R_LOADwould

be degraded from the datasheet specification. To improve this, the load should be tied directly to the output

terminal on the positive side and directly tied to the ground terminal on the negative side.

Figure1. Typical Application using Fixed Output Regulator

REV1.0

- DEC 2013 RELEASED -

- 12 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

Application Circuit

Regulator with Reference

Adjusting Output of Fixed Voltage Regulators

Battery Backed−Up Power Supply

Low Dropout Negative Supply

REV1.0

- DEC 2013 RELEASED -

- 13 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

PACKAGE INFORMATION

Dimension in SOT-223 (Unit: mm)

REV1.0

- DEC 2013 RELEASED -

- 14 -

A6800

LOW DROPOUT REGULATOR

AiT Semiconductor Inc.

www.ait-ic.com

800mA ADJUSTABLE VOLTAGE HIGH SPEED LDO REGULATORS

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 servere 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.

REV1.0

- DEC 2013 RELEASED -

- 15 -

A6800NR-50 [AITSEMI]

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