ETA2841 Datasheet | ETA

DESCRIPTION The ETA2841 is a wide input range, high-efficiency, and high frequency DC-to-DC step-down switching regulator, capable of delivering up to 0.6A of output current. With a fixed switching frequency of 650KHz, this current mode PWM controlled converter allows the use of small external ponents, such as ceramic input and output caps, as well as small inductors.ETA2841 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 42V, making it an ideal solution for industrial applications such as smart meters as well as automotive applications. In automotive systems, power es from the battery, with its voltage typically between 9V and 24V. Including cold crank and double battery jump-starts, the minimum input voltage may be as low as 4V and the maximum up to 36V, with even higher transient voltages. With these high input voltages, linear regulators cannot be used for high supply currents without overheating the regulator. Instead, high efficiency switching regulators such as ETA2841 must be used to minimize thermal dissipation. ETA2841 is available SOT23-6 Packages. FEATURES - Wide Input Operating Range from 4V to 38V - Standoff Input Voltage: 42V - High Efficiency at 12V In 5V Out: Up to 91%: - High Efficiency PFM mode at light load - Capable of Delivering 0.6A - No External pensation Needed - Current Mode control - Logic Control Shutdown - Thermal shutdown and UVLO - Available in SOT23-6 Package APPLICATIONS - Smart Meters - Industrial Applications - Automotive Applications ORDERING INFORMATION PART # PACKAGE PIN ETA2841S2G SOT23-6 TOP MARK EGYW Date Code Product Number TYPICAL APPLICATION VIN Standoff up to 42V 10n F IN BST 50V 10μF 10μH VOUT 3.3V/0.5A D1...