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

Typical perFormance characTerisTics

Error Amplifier Gain and Phase

Output Voltage Noise

300

250

200

150

100

OUT

= 1.1A

100µV/DIV

= 100mA

–5

= 1.1A

30801 G27

–10

–15

–20

–25

–30

TIME 1ms/DIV

= 1V

OUT

SET

–50

–100

–150

= 100k

= O.1µF

= 10µF

= 1.1A

= 100mA

OUT

LOAD

–200

100

10k

100k

FREQUENCY (Hz)

30801 G28

pin FuncTions ^(DD/MS8E)

(Pin 5/Pin 5): This pin is the supply pin for the

OUT (Pins 1-3/Pins 1-3): This is the power output of the

device. There must be a minimum load current of 1mA

or the output may not regulate.

CONTROL

control circuitry of the device. The current flow into this

pin is about 1.7% of the output current. For the device to

regulate, this voltage must be more than 1.2V to 1.35V

greater than the output voltage (see Dropout specifica-

tions).

SET (Pin 4/Pin 4): This pin is the input to the error am-

plifier and the regulation set point for the device. A fixed

current of 10µA flows out of this pin through a single

external resistor, which programs the output voltage of

the device. Output voltage range is zero to the absolute

maximum rated output voltage. Transient performance

can be improved by adding a small capacitor from the

SET pin to ground.

IN (Pins 7, 8/Pins 7, 8): This is the collector to the power

deviceoftheLT3080-1.Theoutputloadcurrentissupplied

through this pin. For the device to regulate, the voltage at

this pin must be more than 0.1V to 0.5V greater than the

output voltage (see Dropout specifications).

NC (Pin 6/Pin 6): No Connection. No Connect pins have

Exposed Pad (Pin 9/Pin 9): OUT on MS8E and DFN

packages.

no connection to internal circuitry and may be tied to V ,

, V

, GND, or floated.

CONTROL OUT

30801fc

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