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LTC1874 데이터시트(PDF) 5 Page - Linear Technology

부품명 LTC1874
상세설명  Dual Constant Frequency Current Mode Step-Down DC/DC Controller
PDF  12 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC1874 데이터시트(HTML) 5 Page - Linear Technology

  LTC1874 Datasheet HTML 1Page - Linear Technology LTC1874 Datasheet HTML 2Page - Linear Technology LTC1874 Datasheet HTML 3Page - Linear Technology LTC1874 Datasheet HTML 4Page - Linear Technology LTC1874 Datasheet HTML 5Page - Linear Technology LTC1874 Datasheet HTML 6Page - Linear Technology LTC1874 Datasheet HTML 7Page - Linear Technology LTC1874 Datasheet HTML 8Page - Linear Technology LTC1874 Datasheet HTML 9Page - Linear Technology Next Button
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5
LTC1874
FUNCTIONAL DIAGRA
Controller #1
SWITCHING
LOGIC AND
BLANKING
CIRCUIT
–
+
–
+
0.15V
0.5
µA
0.3V
SLEEP
OVP
SHORT-CIRCUIT
DETECT
BURST
CMP
SHDN
1.2V
UV
1874FD
VREF
+
60mV
VREF
0.8V
VIN
RS1
VOLTAGE
REFERENCE
SLOPE
COMP
ICMP
R
S
Q
FREQ
FOLDBACK
OSC
SENSE1–
VIN1
1
3
2
–
+
EAMP
VFB1
–
+
4
PVIN2
8
PGATE2
7
PGND2
6
VFB2
12
ITH/RUN2
CONTROLLER #2 IS THE SAME AS CONTROLLER #1
PGATE1
15
PGND1
14
PVIN1
16
ITH/RUN1
VIN
0.35V
VREF
0.8V
13
–
+
SHDN
CMP
0.3V
GND1
11
GND2
–
+
UNDERVOLTAGE
LOCKOUT
VIN
VIN2
9
SENSE2–
5
10
Controller #2



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