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LT1577CS-3.3/2.8 Datasheet(PDF) 9 Page - Linear Technology

Part # LT1577CS-3.3/2.8
Description  Ultrafast Transient Response, Low Dropout Regulators Adjustable and Fixed
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1577CS-3.3/2.8 Datasheet(HTML) 9 Page - Linear Technology

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9
LT1575/LT1577
BLOCK DIAGRAM
LT1575 Fixed Voltage
SW2
NORMALLY
CLOSED
I2
5
µA
–
+
ERROR AMP
COMP
1575/77 BD2
–
+
COMP1
Q6
SHDN
VIN
GND
OUT
R2
5k
SW1
NORMALLY
OPEN
100mV
HYSTERESIS
I1
15
µA
I3
100
µA
–
+
ILIM AMP
VTH1
50mV
VTH3
500mV
VTH2
1V
D1
IPOS
INEG
GATE
D2
–
+
–
+
COMP2
COMP4
COMP3
OR2
START-UP
VREF
1.21V
R1
50k
OR1
Q4
Q3
Q2
Q1
Q5
R3*
*VOUT = (1 + R3/R4)VREF
R4*
Q7



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