Datasheet > LT3080-1

LT3080-1

更新时间： 2023-12-20 18:46:09

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
24页	345K
描述
可并联、1.1A、输出可调的单电阻低压差稳压器

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LT3080-1 数据手册

LT3080-1

Parallelable 1.1A

Adjustable Single Resistor

Low Dropout Regulator

DescripTion

FeaTures

Internal Ballast Resistor Permits Direct

The LT^®3080-1 is a 1.1A low dropout linear regulator that

incorporates an internal ballast resistor to allow direct

paralleling of devices without the need for PC board trace

resistors. The internal ballast resistor allows multiple de-

vices to be paralleled directly on a surface mount board

for higher output current and power dissipation while

keeping board layout simple and easy. The device brings

outthecollectorofthepasstransistortoallowlowdropout

operation—down to 350mV—when used with multiple

input supplies.

Connection to Power Plane for Higher Current

and Heat Spreading

Output Current: 1.1A

Single Resistor Programs Output Voltage

1% Initial Accuracy of SET Pin Current

Output Adjustable to 0V

Low Output Noise: 40µV

(10Hz to 100kHz)

RMS

Wide Input Voltage Range: 1.2V to 36V

Low Dropout Voltage: 350mV

<0.001%/V Line Regulation

The LT3080-1 is capable of supplying a wide output volt-

age range. A reference current through a single resistor

programs the output voltage to any level between zero

and 36V. The LT3080-1 is stable with 2.2µF of ceramic

capacitance on the output, not requiring additional ESR

as is common with other regulators.

Minimum Load Current: 0.5mA

Stable with 2.2µF Minimum Ceramic Output Capacitor

Current Limit with Foldback and Overtemperature

Protected

Available in 8-Lead MSOP and 3mm × 3mm DFN

Internal protection includes current limiting and thermal

limiting. The LT3080-1 regulator is offered in the 8-lead

MSOP (with an Exposed Pad for better thermal charac-

teristics) and 3mm × 3mm DFN packages.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and VLDO

and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

applicaTions

High Current All Surface Mount Supply

High Efficiency Linear Regulator

Post Regulator for Switching Supplies

Low Parts Count Variable Voltage Supply

Low Output Voltage Power Supplies

Typical applicaTion

Paralleling Regulators

Offset Voltage Distribution

LT3080-1

N = 13250

CONTROL

–

25mΩ

OUT*

SET

LT3080-1

4.8V TO 28V

CONTROL

–

1µF

25mΩ

3.3V

2.2A

OUT

OUT*

–2

–1

DISTRIBUTION (mV)

SET

165k

30801 TA01b

10µF

*OUTPUTS CAN BE

DIRECTLY MOUNTED

TO POWER PLANE

30801 TA01

30801fc

For more information www.linear.com/LT3080-1

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