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PDF EUP3409 Data sheet ( Hoja de datos )
| Número de pieza | EUP3409 | |
| Descripción | 800mA Synchronous Step-Down Converter | |
| Fabricantes | Eutech Microelectronics | |
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EUP3409
Dual 1.5MHz, 800mA Synchronous
Step-Down Converter
DESCRIPTION
The EUP3409 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 EUP3409 is ideal for
powering portable equipment that runs from a single
cell Lithium-Ion (Li+) battery. Each converter can
supply 800mA of load current from a 2.5V to 5.5V
input voltage. The output voltage can be regulated as
low as 0.6V. The EUP3409 can also run at 100% duty
cycle for low dropout applications.
Typical Application Circuit
FEATURES
z Up to 96% Efficiency
z 1.5MHz Constant Switching Frequency
z 800mA 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 10-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
DS3409 Ver1.0 Jan. 2008
Figure 1. Adjustable Voltage Regulator
1
1 page  
EUP3409Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Typical Operating Characteristics
DS3409 Ver1.0 Jan. 2008
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet EUP3409.PDF ] | |
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