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.
FEATURES
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
RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
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
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
