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PDF EML9206 Data sheet ( Hoja de datos )
| Número de pieza | EML9206 | |
| Descripción | Synchronous Step-Down Regulator | |
| Fabricantes | Elite Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EML9206 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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ESMT/EMP
EML9206
1.5MHz 600mA, Synchronous Step-Down
Regulator
General Description
EML9206 is designed with high efficiency step down DC/DC
converter for portable devices applications. It features with
extreme low quiescent current with no load which is the
best fit for extending battery life during the standby mode.
The device operates from 2.5V to 5.5V input voltage and up
to 600mA output current capability. High 1.5MHz internal
frequency makes small surface mount inductors and
capacitors possible and reduces overall PCB board space.
Further, build-in synchronous switch makes external
Schottky diode is no longer needed and efficiency is
improved. EML9206 is designed base on Pulse Width
Modulation (PWM) for low output voltage ripple and fixed
frequency noise, while Pulse Frequency Modulation (PFM) is
used to improve light load efficiency, and Low Dropout
(LDO) Mode provides 100% duty cycle operation. The
device is available in fixed output voltages of 1.2V, 1.8V
and 3.3V in SOT-23-5 package.
Typical Application (fixed-3.3V)
Features
Achieve 95% efficiency
Input Voltage : 2.5V to 5.5V
Output Current up to 600mA
Quiescent Current 35μA with No Load
Internal switching frequency 1.5MHz
No Schottky Diode needed
Low Dropout Operation: 100% Duty Cycle
Shutdown current < 1μA
Excellent Line and Load Transient Response
Over-temperature Protection
Applications
Blue-Tooth devices
Cellular and Smart Phones
Personal multi-media Player (PMP)
Wireless networking
Digital Still Cameras
Portable applications
Vin
。3.3 – 5.5V
Cin
4.7 uF
。CER
EN
1 VIN SW 5
3 EN VOUT 4
2 GND
2.2 uH
Vout 3.3V
。Cout
10uF
CER
Fig. 1
Fig. 2
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jan. 2011
Revision : 2.2
1/15
1 page  
ESMT/EMP
Typical Performance Characteristics
Efficiency vs Output Current
EML9206
Efficiency vs Output Current
Efficiency vs Output Current
Reference voltage vs Temperature
RDS(ON) vs Temperature
RDS(ON) vs Input Voltage
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jan. 2011
Revision : 2.2
5/15
5 Page 
ESMT/EMP
EML9206
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jan. 2011
Revision : 2.2
11/15
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet EML9206.PDF ] | |
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