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LTC3444 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3444
Description  Micropower Synchronous Buck-Boost DC/DC Converter for WCDMA Applications
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3444 Datasheet(HTML) 6 Page - Linear Technology

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6
LTC3444
3444fb
BLOCK DIAGRA
3444 BD
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
2.75V TO 5.5V
VIN
PWM LOGIC
AND
OUTPUT PHASING
THERMAL
SHUTDOWN
OSC
3A
1.8V
SW2
VOUT
FB
SHDN
VOUT
SW1
2.5A
3.5A
2.65V
1.22V
1.22V
335k
100k
THERMAL
SHUTDOWN
GND
SOFTSTART
UVLO
VIN
OUTLOW
INPUT
CURRENT
LIMIT
PEAK
CURRENT
LIMIT
UVLO
PEAK
REVERSE
CURRENT
LIMIT
+
–
+
–
+
–
+
–
+
–
OUTPUT OV
PWM
COMPARATORS
INTERNAL
COMPENSATION
GND = INTERNAL COMP
FLOAT = EXTERNAL COMP
INTERNAL
SOFTSTART
EA
5
6
2
4
8
7
1
3
+
VC
A
BC
D



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