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EML3276 Datasheet Preview

EML3276 Datasheet

Synchronous Step-Down DC-DC Converter

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ESMT
EML3276
5.0A, Synchronous Step-Down DC-DC Converter
General Description
EML3276 is a high efficiency, DC-DC synchronous
buck converter which provides 5.0A output loading
after output voltage reach preset voltage. EML3276
uses different modulation algorithms for various
loading conditions. Under heavy load, EML3276
regulates the output voltage using Pulse Width
Modulation (PWM). The PWM mode provides low
output voltage ripple and fixed frequency noise.
While in light load, it enters Power Skip Modulation
(PSM) automatically to ensure a highly efficient
operation at light load condition. Under very heavy
load condition, or when the input voltage
approaches the output voltage, EML3276 enters low
dropout voltage operation under 100% duty cycle.
The internal generated 0.8V precision feedback
reference voltage is designed for low output voltage
request. Low Power-FET Ron synchronous switch
dramatically reduces conduction loss.
The EML3276 is available in an 8-pin, space-saving
E-SOP-8L package.
Typical Application
Features
„ Wide Operating Voltage Ranges : 3.0V to 5.5V
„ 5.0A Output Current
„ High efficiency Buck Power Converter
„ Auto-select PSM/PWM (Mode=VCC)
„ Force PWM (Mode=GND)
„ Power Good Indicator
„ LDO mode: duty cycle: 100%
„ Synchronous Power Switches Rectification, no
Schottky Diode Required
„ 1.1 MHz Switching Frequency
„ Internal Soft-Start
„ Current Limit Protection
„ Over Temperature Protection
„ Output Shorting Protect
„ Output Over Voltage Protection
Applications
„ Cellular telephone
„ Wireless and DSL Modems
„ Digital Still Cameras
„ Portable Products
„ MP3 Players
VIN
Cin
22uF*2
R3
VCC
VIN
MODE AGND
SW
PGOOD
PGND
2.2uH
R1
VOUT
*
Cfb
Cout
22uF*2
FB EN ON/OFF
R2 EML3276
* : OPTION
Fig. 1 EML3276 application circuit
Elite Semiconductor Memory Technology Inc.
Publication Date: Sep. 2015
Revision: 1.1
1/17




ESMT

EML3276 Datasheet Preview

EML3276 Datasheet

Synchronous Step-Down DC-DC Converter

No Preview Available !

ESMT
Package Configuration
EML3276
EML3276-00SG08NRR
00 Adjustable
SG08
E-SOP-8L Package
NRR RoHS & Halogen free package
Commercial Grade Temperature
Rating: -40 to 85°C
Package in Tape & Reel
E-SOP-8L
Order, Mark & Packing information
Package Vout(V)
Product ID
E-SOP-8L adjustable EML3276-00SG08NRR
Marking
PIN 1 DOT
87
65
ESMT
EML 3276
Tracking code
12
34
Packing
Tape & Reel
3K units
Functional Block Diagram
Fig. 2
Elite Semiconductor Memory Technology Inc.
Publication Date: Sep. 2015
Revision: 1.1
2/17


Part Number EML3276
Description Synchronous Step-Down DC-DC Converter
Maker ESMT
Total Page 17 Pages
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