EUP3020 Datasheet | Eutech Microelectronics

Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter DESCRIPTION The EUP3020 contains two independent 1.5MHz constant frequency, current mode, PWM step-down converters. Each converter integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The EUP3020 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. Each converter can supply 1A of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The EUP3020 can also run at 100% duty cycle for low dropout applications. EUP3020 is available in an adjustable output or fixed output 1.2V, 1.8V and 3.3V. Features z z z z z z z z z z z z z Up to 96% Efficiency 1.5MHz Constant Switching Frequency 1A Load Current on Each Channel 2.5V to 5.5V Input Voltage Range Output Voltage as Low as 0.6V 100% Duty Cycle in Dropout Current Mode Operation Short Circuit Protection Thermal Fault Protection <1µA Shutdown Current Soft Start Function Space Saving 3mm × 3mm 12-Pin TDFN Package Ro HS pliant and 100% Lead(Pb)-Free APPLICATIONS z z z z z Cellular and Smart Phones Microprocessors and DSP Core Supplies PDAs and Portable Media Players Wireless and DSL Modems Digital Still and Video Cameras Typical Application Circuit Figure 1. Adjustable Output Regulators DS3020 Ver1.2 Feb. 2009 Typical Application Circuit (continued) Figure 2. Fixed Output Regulators Pin Configurations Package Type Pin Configurations Package Type Pin Configurations TDFN-12 ADJ Voltage TDFN-12 Fixed Voltage Pin Description PIN VIN2 SW2 GND FB1/VOUT1 NC1,NC2 EN1 VIN1 SW1 FB2/VOUT2 EN2 DS3020 Ver1.2 Pin 1 2 3,9 4 5,11 6 7 8 10 12 Feb. 2009 DESCRIPTION Power Input of Channel 2. Pin for Switching of Channel 2. Ground. Feedback/Output Voltage Pin of Channel 1. No Connection or Connect to VIN. Chip Enable of Channel 1 (Active High).VEN1 ≤ VIN1. Power Input of Channel 1. Pin for Switching of Channel1....