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Elite Semiconductor

EML9206 Datasheet Preview

EML9206 Datasheet

Synchronous Step-Down Regulator

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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




Elite Semiconductor

EML9206 Datasheet Preview

EML9206 Datasheet

Synchronous Step-Down Regulator

No Preview Available !

ESMT/EMP
Connection Diagram
SOT-23-5
VIN 1
GND 2
EN 3
5 SW
4 VOUT
TDFN-6
Order Information
EML9206
EML9206-XXVF05GRR/NRR
XX Output voltage
VF05 SOT-23-5 Package
GRR RoHS (Pb Free)
Rating: -40 to 85°C
Package in Tape & Reel
NRR RoHS & Halogen free (By Request)
Rating: -40 to 85°C
Package in Tape & Reel
Order, Mark & Packing Information
Package
Vout
Product ID
EML9206-XXFE06GRR/NRR
XX Output voltage
VF05 TDFN-6 Package
GRR RoHS (Pb Free) (By Request)
Rating: -40 to 85°C
Package in Tape & Reel
NRR RoHS & Halogen free
Rating: -40 to 85°C
Package in Tape & Reel
Marking
Packing
TDFN-6
1.8 EML9206-18FE06NRR
Tape & Reel
3Kpcs
SOT-23-5
1.2 EML9206-12VF05GRR
1.8 EML9206-18VF05GRR
3.3 EML9206-33VF05GRR
Tape & Reel
3Kpcs
.
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jan. 2011
Revision : 2.2
2/15


Part Number EML9206
Description Synchronous Step-Down Regulator
Maker Elite Semiconductor
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