LT3022 Ver la hoja de datos (PDF) - Linear Technology

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LT3022

1A, 0.9V to 10V, Very Low Dropout Linear Regulator

Linear Technology 

BLOCK DIAGRAM

LT3022/LT3022-1.2

LT3022-1.5/LT3022-1.8

SHDN

9

SHUTDOWN

200mV

BIAS CURRENT

AND

REFERENCE

GENERATOR

213mV

NOTE:

FOR LT3022 ADJ PIN (5) IS

CONNECTED TO THE ADJ PIN,

R1 AND R2 ARE EXTERNAL.

FOR LT3022-1.X PIN (5) IS

CONNECTED TO THE SENSE PIN,

R1 AND R2 ARE INTERNAL.

TIE PGND, AGND AND THE EXPOSED

PAD TOGETHER.

IDEAL

DIODE

THERMAL

SHUTDOWN

–

ERROR

+ AMP

–

NO-LOAD

R+ECOVERY

CURRENT

GAIN

R3

D1

Q1

PGND

10, 11

D2

Q2

25k

FIXED

VOUT

1.2V

1.5V

1.8V

R1 R2

3.92k 19.6k

3.92k 25.5k

3.92k 31.4k

IN

12, 13, 14

Q3

OUT

3, 4

SENSE

5

R2

R1

3022 BD

ADJ

5

AGND

6, 7

3022fb

11

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