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PDF ECT3410 Data sheet ( Hoja de datos )
| Número de pieza | ECT3410 | |
| Descripción | 1.2MHz Step-Down Converter | |
| Fabricantes | E-CMOS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ECT3410 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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2A, 1.2MHz Step-Down Converter
ECT3410
Description
The ECT34 10 is a 1.2M Hz constant frequency current
mode PWM step-down co nverter. It is ideal for po rtable
equipment requiri ng ve ry high current up to 2A from
single-cell Lit hium-ion batt eries whil e st ill achieving over
90% efficiency during peak load conditions. The ECT3410
also can run at 100% duty cycle for low dropout operation,
extending battery life in p ortable systems while lig ht load
operation provides very lo w output ripple for noise
sensitive applications.
The ECT341 0 ca n supply up to 2A o utput load current
from a 2.5V t o 5.5V input voltage and the outp ut voltage
can be regulated as lo w as 0.6V. The high swit ching
frequency mi nimizes the size of external co mponents
while keeping switching l osses low. T he internal slope
compensation setting all ows the device to operate with
smaller indu ctor value s to optimize size and provide
efficient operation.
The ECT3410 is available in adjustable (0.6V to VIN) and
fixed (1.8V) output voltage versio ns. The d evice is
available i n a Pb-fre e, 3x 3mm TDFN-1 0 pa ckage a nd is
rated over the -40°C to+85°C temperature range.
Block Diagram
Features
z Input Voltage Range: 2.5V to 5.5V
z Output Voltages from 0.6V to VIN
z 2A Output Current
z High Efficiency: Up to 95%
z 1.2MHz Constant Switching Frequency
z Low RDS(ON) Internal Switches: 0.15Ω
z Allows Use of Ceramic Capacitors
z Current Mode Operation for Excellent Line and
Load Transient Response
z Short-Circuit and Thermal Fault Protection
z Soft Start
z Low Dropout Operation: 100% Duty Cycle
z Low Shutdown Current: ISHUTDOWN < 1µA
z Available is the Lead Free package
Applications
z Cellular Phones
z Digital Cameras
z DSP Core Supplies
z PDAs
z Portable Instruments
z Smart Phones
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 19
2008/07/17
http://www.Datasheet4U.com
1 page  
2A, 1.2MHz Step-Down Converter
Typical Performance Characteristics
ECT3410
E-CMOS Corp. (www.ecmos.com.tw)
Page 5 of 19
2008/07/17
5 Page 
2A, 1.2MHz Step-Down Converter
Applications Information
ECT3410
E-CMOS Corp. (www.ecmos.com.tw)
Page 11 of 19
2008/07/17
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ECT3410.PDF ] | |
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