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ETA1661FSG Datasheet(PDF) 3 Page - ETA SOLUTIONS CO. LIMITED

Part # ETA1661FSG
Description  18V, 4A, High Efficiency Synchronous Step-Down Converter in SOT563
PDF  8 Pages
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Manufacturer  ETA [ETA SOLUTIONS CO. LIMITED]
Direct Link  http://www.etasolution.com
Logo ETA - ETA SOLUTIONS CO. LIMITED

ETA1661FSG Datasheet(HTML) 3 Page - ETA SOLUTIONS CO. LIMITED

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ETA1661
www.etasolution.com
3
Empowering Thinkers
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
EN Input Current
2
6
uA
Thermal Shutdown
155
°
C
Thermal Hysteresis
40
°
C
PIN DESCRIPTION
PIN #
PIN NAME
DESCRIPTION
1
VIN
Supply Voltage. Bypass with a 100nF HF filter plus a 10μF ceramic capacitor
to GND
2
SW
Inductor Connection. Connect an inductor Between SW and the regulator
output.
3
GND
Ground
4
BST
Bootstrap pin. Connect a 100nF capacitor from this pin to SW
5
EN
Enable pin for the IC. Drive this pin high to enable the part, low or floating to
disable.
6
FB
Feedback Input. Connect an external resistor divider from the output to FB and
GND to set VOUT.
FUNCTIONAL BLOCK DIAGRAM
COMP
Σ
COT
logic
Anti
Shoot
Through
Driver
Ilim
QZX
IN
FB
GND
SW
EN
BST
UVLO&
Thermal
shutdown
REG&
REF



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