EUP2570 Datasheet | Eutech Microelectronics

1MHz Boost Regulator with 18V Integrated FET Switch in Tiny SOT-23 DESCRIPTION The EUP2570 switching regulator is a current-mode boost converter operating at fixed frequency of 1MHz. It is designed for small LCD bias supply and others micropower step-up applications. The 18V switch allows for output voltage as high as 17V. The integrated 0.19Ω power switch and 2A current limit will provide high efficiency over a wide range of load conditions with high power density. The EUP2570 integrated multiple protections, such as OC, UVLO, OT, OVP, which will prevent damage in the event of an output overload. The EUP2570 is available in the tiny SOT23-5 package to provide the best solution for PCB space saving and total BOM cost. Features 2.6V to 5.5V Input Range 18V Output Over Voltage Protection Internal Soft-Start Adjustable Output Voltage Internal 0.19Ω 18V MOSFET Switch 1MHz Switching Frequency 2A Current Limit Low-Profile Inductors and Capacitors Peak Efficiency Up to 88% Available in TSOT23-5 Package Ro HS pliant and 100% Lead (Pb)-Free Halogen-Free APPLICATIONS LCD Panel Bias Supplies Local Boost Regulator Digital Camera Portable Applications Typical Application Circuit Figure 1. EUP2570 Typical 12V Application DS2570 Ver1.0 Feb. 2012 Block Diagram Pin Configurations Package Type TSOT23-5 Figure 2. Block Diagram Pin Configurations Pin Description PIN TSOT23-5 DESCRIPTION Switch Pin. This is the drain of the internal power switch. Connect inductor/diode here. Minimize trace area at this pin to reduce EMI. mon Ground. Connect the pin to ground plane. Feedback Pin. Reference voltage is 1.25V, Connects to the external resistive divider. Chip Enable Pin. Connect it to 1.4V or higher voltage to enable device, 0.3V or less voltage to disable device. Input Supply Voltage. DS2570 Ver1.0 Feb. 2012 Ordering Information Order Number EUP2570OIR1 Package Type TSOT23-5 - - - - Marking xxxxx...