LT1575 Просмотр технического описания (PDF) - Linear Technology

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LT1575

Ultrafast Transient Response, Low Dropout Regulators Adjustable and Fixed

Linear Technology 

LT1575/LT1577

BLOCK DIAGRAM

LT1575 Adjustable Voltage

I1

15µA

SW1

OR1

NORMALLY

SHDN

OPEN

D1

+

COMP1

I2

R2

5k Q6

–

D2

5µA

100mV

HYSTERESIS

SW2

OR2

NORMALLY

CLOSED

VIN

1.21V

START-UP

VREF

GND

VTH1

50mV

ILIM AMP

IPOS

INEG

COMP2

COMP3

VTH2

1V

+

GATE

FB

ERROR AMP

–

COMP

I3

100µA

Q4

Q5

Q1

Q2

Q3

R1

50k

1575/77 BD1

8

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