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Elite Semiconductor

EML9366 Datasheet Preview

EML9366 Datasheet

Synchronous Step-Down Regulator

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ESMT/EMP
EML9366
1.5MHz 600mA, Synchronous Step-Down
Regulator
General Description
EML9366 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. EML9366 is designed base on pulse width
modulation (PWM) for low output voltage ripple and fixed
frequency noise, low dropout mode provides 100% duty
cycle operation. Low reference voltage is designed for
achieving regulated output down to 0.6V.
The device is available in an adjustable version and fixed
output voltages of 1.2V, 1.5V, 1.8V and 3.3V. The EML9366 is
available in SOT package.
Features
„ Achieve 95% efficiency
„ Input Voltage : 2.5V to 5.5V
„ Output Current up to 600mA
„ Reference voltage 0.6V
„ Quiescent Current 200μA 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
Typical Application (adjustable)
Vin
3.3 – 5.5V
Cin
4.7 uF
CER
EN
4 VIN SW 3
1 EN VFB 5
2 GND
2.2 uH
22 pF
Vout 2.7V
Cout
10uF
CER
R2 (350KΩ)
R1 (100KΩ)
Fig. 1
Fig. 2
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jan. 2011
Revision : 2.1
1/15




Elite Semiconductor

EML9366 Datasheet Preview

EML9366 Datasheet

Synchronous Step-Down Regulator

No Preview Available !

ESMT/EMP
CONNECTION DIAGRAM
SOT-23-5
EN 1
GND 2
5 VFB
SW 3
4 VIN
EML9366
ORDER INFORMATION
EML9366-XXVF05GRR/NRR
XX Output voltage
VF05 SOT-23-5Package
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
Package Vout
Product ID
1.2 EML9366-12VF05GRR
Marking
Packing
SOT-23-5
1.8 EML9366-18VF05GRR
3.3 EML9366-33VF05GRR
Tape & Reel
3Kpcs
SOT-23-5 adjustable EML9366-00VF05GRR
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jan. 2011
Revision : 2.1
2/15



Part Number EML9366
Description Synchronous Step-Down Regulator
Maker Elite Semiconductor
Total Page 15 Pages
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