LT3080EDD-1#TR

更新时间： 2024-02-10 07:35:18

品牌	Logo	应用领域
凌特 - Linear		线性稳压器IC 调节器电源电路光电二极管输出元件
页数	文件大小	规格书
24页	301K
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LT3080EDD-1#TR 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

devices 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 out the collector of the pass transistor to allow low

dropout 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

characteristics) and 3mm × 3mm DFN packages.

APPLICATIONS

High Current All Surface Mount Supply

High Efﬁciency Linear Regulator

Post Regulator for Switching Supplies

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

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

30801fa

12 3 4 5 6 7...24

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