EUP3020 Datasheet, PDF (1/10 Pages) Eutech Microelectronics Inc – Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter

EUP3020
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.
Typical Application Circuit
FEATURES
z Up to 96% Efficiency
z 1.5MHz Constant Switching Frequency
z 1A Load Current on Each Channel
z 2.5V to 5.5V Input Voltage Range
z Output Voltage as Low as 0.6V
z 100% Duty Cycle in Dropout
z Current Mode Operation
z Short Circuit Protection
z Thermal Fault Protection
z <1µA Shutdown Current
z Soft Start Function
z Space Saving 3mm × 3mm 12-Pin TDFN
Package
z RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
z Cellular and Smart Phones
z Microprocessors and DSP Core Supplies
z PDAs and Portable Media Players
z Wireless and DSL Modems
z Digital Still and Video Cameras
DS3020 Ver1.2 Feb. 2009
Figure 1. Adjustable Output Regulators
1