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LT3689 Datasheet(PDF) 28 Page - Linear Technology

Part # LT3689
Description  700mA Step-Down Regulator with Power-On Reset and Watchdog Timer
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3689 Datasheet(HTML) 28 Page - Linear Technology

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LT3689/LT3689-5
28
3689fa
TYPICAL APPLICATIONS
SW
DA
FB
RT
SYNC
fSW = 700kHz
WDI
RST
WDO
VIN
EN/UVLO
VIN
4.5V TO 36V
TRANSIENT
TO 60V
3.3V
700mA
R2
100k
L1
12μH
C2
0.1μF
D1
C3
22μF
R1
316k
GND
RT
20.5k
LT3689
3689 TA03
BST
OUT
CPOR
CWDT
C1
2.2μF
I/O
I/O
RESET
μP
W/T
WINDOW TIMEOUT
WDE
WATCHDOG_DEFEAT
C6
10nF
tWDU = 182ms
L1: CDR125NP-12MC
D1: MBRM140
C1, C2, C3: X7R or X5R
C4
10pF
C5
68nF
tRST = 157ms
3.3V Step-Down Converter
SW
DA
FB
RT
SYNC
fSW = 2MHz
WDI
RST
WDO
VIN
EN/UVLO
VIN
6.3V TO 18V
TRANSIENT
TO 60V
5V
700mA
L1
10μH
C2
0.1μF
D1
C3
4.7μF
GND
RT
4.02k
LT3689-5
3689 TA04
BST
OUT
CPOR
CWDT
C1
1μF
I/O
I/O
RESET
μP
W/T
WINDOW TIMEOUT
WDE
WATCHDOG_DEFEAT
C6
10nF
tWDU = 182ms
C1, C2, C3: X7R OR X5R
D1: MBRM140
C4
2.7pF
C5
68nF
tRST = 157ms
5V, 2MHz Step-Down Converter



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