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LT3579 Datasheet(PDF) 8 Page - Linear Technology

Part # LT3579
Description  6A Boost/Inverting DC/DC Converter with Fault Protection
PDF  40 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3579 Datasheet(HTML) 8 Page - Linear Technology

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LT3579/LT3579-1
8
35791f
BLOCK DIAGRAM
FREQUENCY
FOLDBACK
RAMP
GENERATOR
COMPARATOR
DRIVER
DISABLE
SS
VC
RFAULT
RGATE
14.6k
14.6k
SR1
A3
SYNC
CLKOUT
÷N
SS
SHDN
COUT1
SW1
SW2
FB
15.4m
RS
12m
GND
RT
RT
RC
CC
VC
DRIVER
VIN
CIN
SYNC
BLOCK
UVLO
R
S
Q
3579 BD
–
+
A4
Q2
TD ~ 30ns
VBE • 0.9
1.17V
45mV
FB
∑
ADJUSTABLE
OSCILLATOR
–
+
–
+
A1
CSS
1.33V
+
–
+
–
+
–
250k
2.1V
1.8V
50mV
SOFT-
START
STARTUP
& FAULT
LOGIC
COUT
VOUT
VIN
M1
L1
GATE
OPTIONAL
FAULT
933μA
+
–
+
–
+
–
DIE TEMP
165°C
VIN
750mV
SW1
ISW1
42V (MIN)
42V (MIN)
3.4A (MIN)
SW2
–
+
A2
1.215V
REFERENCE
16.2V
D1
RFB
Q1
**
**
** SW OVERVOLTAGE PROTECTION IS NOT GUARANTEED TO PROTECT THE LT3579/LT3579-1 DURING SW OVERVOLTAGE EVENTS.
Figure 1. Block Diagram



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