LT3689EUD-5#PBF Linear Technology, LT3689EUD-5#PBF Datasheet - Page 28

• Manufacturer Part Number: LT3689EUD-5#PBF
• Description: IC BUCK 5V 0.7A 16QFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3689EUD-5#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 700mA
• Frequency - Switching: 350kHz ~ 2.2MHz
• Voltage - Input: 3.6 ~ 36 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

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