Rev 1.2 DIO6012B High-Efficiency 1MHz, 2A Continuous, 3A Peak, Output Synchronous Step Down Converter Features Descriptions 2.7-5.5V input voltage range The DIO6012B is high-efficiency, high frequency 2A continuous, 3A peak load current synchronous step-down DC-DC regulator ICs Low R for internal switches (top/bottom) capable of delivering up to 3A Peak load current. DS(ON) 100m/80m The DIO6012B family operate over a wide input High switching frequency minimizes the voltage range from 2.7V to 5.5V and integrate external components main switch and synchronous switch with very Internal soft-start limits the inrush current low R to minimize the conduction loss. DS(ON) 100% dropout operation Low output voltage ripple and small external Green package: inductor and capacitor sizes are achieved with SOT23-5, SOT23-6, DFN2*2-8 greater than 1MHz switching frequency. Other packages are available upon requests Function Block Applications LCD TV Set Top Box Net PC Mini-Notebook PC Access Point Router Ordering Information Order Part Number Top Marking T Package A DIO6012BCST5 CYWB Green -40 to +85C SOT23-5 Tape & Reel, 3000 DIO6012BCST6 CYWC Green -40 to +85C SOT23-6 Tape & Reel, 3000 DIO6012BCN8 6012 Green -40 to +85C DFN2*2-8 Tape & Reel, 3000 Marking Definition www.dioo.com 2017 DIOO MICROCIRCUITS CO., LTD DIO6012B Rev.1.2 High-Efficiency 1MHz, 2A Continuous, 3A Peak, Output Synchronous Step Down Converter DIO6012B Pin Assignments SOT23-5 DFN2*2-8 SOT23-6 Pin Assignment (Top View) Pin Definitions: Pin Name Description Output Feedback Pin. Connect this pin to the center point of the output resistor divider FB (as shown in Figure 1) to program the output voltage: Vout=0.6*(1+R1/R2). Power good indicator. When the output voltage exceeds 90% of regulation point, PG it becomes open drain low otherwise. IN Power Input SGND Signal Ground NC No Connect Inductor pin. Connect this pin to the switching node of inductor. LX Enable control. Pull high to turn on. Do not float. EN PGND Power Ground GND Ground www.dioo.com 2016 DIOO MICROCIRCUITS CO., LTD DIO6012B Rev. 1.2