5V2A降压ic ETA8120 无缝替换SY8120
18V, 2A, High Efficiency Synchronous Step-Down Converter in SOT23-6
DESCRIPTION
FEATURES
ETA8120 is a wide input range, high-efficiency and high
frequency DC-to-DC step-down switching regulator, capable of
delivering up to 2A of output current. With a fixed switching
frequency of 500KHz, this current mode PWM controlled
converter allows the use of small external components, such
as ceramic input and output caps, as well as small inductors.
ETA8120 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. An
OVP function protects the IC itself and its downstream system
against input voltage surges. With this OVP function, the IC can
stand off input voltage as high as 19V, making it an ideal
solution for industrial applications such as LCD TV, Set Top
Box, Portable TV, etc.
ETA8120 is available in SOT23-6 package.
Wide Input Range: 4.2V-18V
High Efficiency PFM mode at light load
Capable of Delivering 2A
No External Compensation Needed
Current Mode Control
Thermal Shutdown and UVLO
Excellent Load and Line Transient Response
Available in SOT23-6 Package
APPLICATIONS
LCD TV
Set Top Box
Portable TV
