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LT3514 Datasheet(PDF) 10 Page - Linear Technology

Part # LT3514
Description  Triple Step-Down Switching Regulator with 100 Duty Cycle Operation
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3514 Datasheet(HTML) 10 Page - Linear Technology

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LT3514
10
3514fa
For more information www.linear.com/LT3514
BLOCK DIAGRAM
3514 BD
VIN
Σ
S
R NQ
S
R NQ
Σ
SYNC
DETECT
CLK1
CLK2
OSC
FREQUENCY
TO CURRENT
TO CH3, CH4
STARTUP/SHUTDOWN
THERMAL SHUTDOWN
0.4V
1µA
1.44V
ON
REF
PRECISION UVLO
VIN
EN/UVLO
LOCK
1SHOT
SLOPE
SLOPE
1SHOT
SKY
5V
BOOST ERROR AMP
0.7V
BOOST SWITCH AND DRIVE
SW5
SW1
DA1
PG
FB1
SKY
VIN
PGOOD
OUT1
COMPARATORS FROM OTHER CHANNELS
FB1
0.72V
CURRENT LIMIT FOLDBACK
0.8V
0.7V
SKYBAD
0.8V
BOOST REGULATOR
Q5
D5
Q1
SWITCH AND DRIVE
ONE OF THREE BUCK REGULATORS SHOWN
POWER GOOD LOGIC
RT/SYNC
RUN/SS1
GND
2.2V
0.1V
1µA
SKYBAD
0
1
+–
4.5V
SKYBAD
SKY
VIN


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