EUP3426 Datasheet | Eutech Microelectronics

3A, Synchronous Step-Down Converter DESCRIPTION The EUP3426 is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 3A output current. The EUP3426 operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.6V to 5V. The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. The EUP3426 can be externally set for either forced PWM continuous mode or pulse skipping mode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications while pulse skipping operation improves light load efficiency by reducing switching loss. The EUP3426 Features short circuit and thermal protection circuits to improve system reliability. Internally soft-start avoids input inrush current during startup. The EUP3426 is available in TDFN 3mm × 3mm 10-pin package with the exposed pad and SOP-8 package with the exposed pad. Features 2.7V to 5.5V Input Voltage Range High Efficiency up to 96% 3A Available Load Current 57/35mΩ Integrated PFET/NFET Switches 1MHz Switching Frequency 100% Duty Cycle Low Dropout Operation Short Circuit and Thermal Protection Integrated UVLO and Power Good Excellent Line and Load Transient Response Available in 10-Pin 3mm × 3mm TDFN and SOP-8 (EP) Packages Ro HS pliant and 100% Lead(Pb)-Free Halogen-Free APPLICATIONS High Performance DSPs, FPGAs, ASICs and Microprocessors Base Station, Tele, and Networking Equipment Power Supplies e PC and Net PCs Typical Application Circuit Figure1. TDFN-10 Typical Application Circuit DS3426 Ver1.0 Jan. 2011 Typical Application Circuit (continued) Figure2. SOP-8 (EP) Typical Application Circuit Pin Configurations Package Type Pin Configurations Package Type Pin Configurations TDFN-10 SOP-8 (EP) Pin Description PIN NC LX PG TDFN-10 SOP-8 (EP) 1 2,3 4 1 4 DESCRIPTION No connection. Switch node connected to inductor. This pin is...