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Elite Semiconductor

EML3020 Datasheet Preview

EML3020 Datasheet

Synchronous Step-Down Regulator

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ESMT/EMP
EML3020
1.5MHz 1A, Synchronous Step-Down Regulator
General Description
EML3020 is a high efficiency step down DC/DC
converter. It features an extremely low quiescent
current, which is suitable for reducing standby
power consumption, especially for portable
applications.
The device can accept input voltage from 2.5V to
5.5V and deliver up to 1A output current. High
1.5MHz switching frequency allows the use of small
surface mount inductors and capacitors to reduce
overall PCB board space. Furthermore, the built-in
synchronous switch improves efficiency and
eliminates external Schottky diode. EML3020 uses
different modulation algorithms for various loading
conditions: (1) Pulse Width Modulation (PWM) for low
output voltage ripple and fixed frequency noise, (2)
Pulse Frequency Modulation (PFM) for improving
light load efficiency, and (3) Low Dropout (LDO)
Mode for providing 100% duty cycle operation
during heavy loading. Adopting low reference
voltage design reduces regulated output to 0.6V.
The adjustable version of this device is available in
both of TDFN-6 2x2mm and SOT-23-5 package.
Features
„ Achieve 97% efficiency
„ Input voltage : 2.5V to 5.5V
„ Output current up to 1A
„ Reference voltage: 0.6V
„ Quiescent current 15μA 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
VIN
Cin*
4.7uF
3
2
EN
* Ceramic capacitor
EML3020
VIN SW
RUN
GND
5
VFB
Fig. 1
2.2uH
4
22pF
6 R2 (450KΩ)
R1 (100KΩ)
VOUT
(3.3V)
Cout*
10uF
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: Jan. 2011
Revision: 1.1
1/15




Elite Semiconductor

EML3020 Datasheet Preview

EML3020 Datasheet

Synchronous Step-Down Regulator

No Preview Available !

ESMT/EMP
Package Configuration
TDFN-6 (2x2mm)
EML3020
EML3020-00FE06NRR
00 Adjustable
FE06
TDFN-6 (2x2mm) Package
NRR RoHS & Halogen free package
Commercial Grade Temperature
Rating: -40 to 85°C
Package in Tape & Reel
SOT-23-5
EML3020-00VF05NRR
00 Adjustable
VF05
SOT-23-5 Package
NRR RoHS & Halogen free package
Commercial Grade Temperature
Rating: -40 to 85°C
Package in Tape & Reel
Order, Mark & Packing information
Package Vout(V)
Product ID
Marking
6 54
TDFN-6 adjustable EML3020-00FE06NRR
3020
Tracking Code
PIN1 DOT
1 23
Packing
Tape & Reel
3K units
SOT-23-5 adjustable EML3020-00VF05NRR
Tape & Reel
3K units
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: Jan. 2011
Revision: 1.1
2/15



Part Number EML3020
Description Synchronous Step-Down Regulator
Maker Elite Semiconductor
Total Page 2 Pages
PDF Download

EML3020 Datasheet PDF





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