ETA2843 Datasheet | ETA

DESCRIPTION The ETA2843 is a wide input range, high-efficiency, and high frequency DC-to-DC step-down switching regulator, capable of delivering up to 0.4A of output current. With a fixed switching frequency of 750KHz, 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.ETA2843 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 ETA2843 must be used to minimize thermal dissipation. ETA2843 is available SOT23-6 Packages. FEATURES - Wide Input Operating Range from 4V to 36V - Standoff Input Voltage: 42V - High Efficiency at 20V In 12V Out: Up to 95%: - High Efficiency PFM mode at light load - Capable of Delivering 0.4A - 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 ETA2843S2G-T SOT23-6 TOP MARK E1YW Date Code Product Number TYPICAL APPLICATION VIN Standoff up to 42V 10n F IN BST 50V 10μF 100μH VOUT...