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ETA1485 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ETA1485
部品説明 High Efficiency Synchronous Step-Down Converter
メーカ ETA solutions
ロゴ ETA solutions ロゴ 



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ETA1485 Datasheet, ETA1485 PDF,ピン配置, 機能
ETA1485
3A, 18V High Efficiency Synchronous Step-Down Converter
DESCRIPTION
The ETA1485 is a wide input range, high-efficiency,
DC-to-DC step-down switching regulator, capable of
delivering up to 3A of output current. Current mode PWM
control allows the use of small external components, such
as ceramic input and output caps, as well as small
inductors, while still providing low output ripples. On top of
the integrated internal synchronous rectifier that
eliminates external Schottky diode, ETA1485 also employs a
proprietary control scheme that switches the device into a
power save mode during light load, thereby extending the
range of high efficiency operation. Therefore, ETA1485 is a
much superior solution in comparison to other
competitions in terms of efficiency and cost. Overall,
ETA1485 is a highly efficient and robust solution for DC-DC
step-down applications that requires wide input ranges.
ETA1485 is available ESOP8 Packages.
APPLICATIONS
LCD TVs
Notebook computers
FPGA power supplies
LED drivers
FEATURES
Wide Input Operating Range from 4.5V to 18V
High Efficiency:
Up to 90%at Light Load
Capable of Delivering 3A
No External Schottky Diode Needed
Current Mode control
0.923V Reference for Low Output voltages
Logic Control Shutdown
Thermal shutdown and UVLO
Available in ESOP8 Package
ORDERING INFORMATION
PART PACKAGE TOP MARK
PIN
ETA1485-E8A ESOP8
ETA1485
YLLFF
Date Code
Product Number
TYPICAL APPLICATION
10nF
VIN
2
IN
1
BST
SW 3
100k
22μF
7 EN
ETA1485
5
FB
8 SS
6
COMP
0.1μF GND
4
10μH VOUT 3.3V/3A
26.1k
22μF
X2
5.6k
3.3nF
10k
www.ETAsolution.com
Outperform with Efficiency
Proprietary Information DO NOT Distribute
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