DC-DC Converter. ME3103 Datasheet

ME3103 Converter. Datasheet pdf. Equivalent

ME3103 Datasheet
Recommendation ME3103 Datasheet
Part ME3103
Description 1A Step-Down DC-DC Converter
Feature ME3103; ME3103 1A Step-Down DC-DC Converter ME3103 General Description The ME3103 is a step-down current-m.
Manufacture Microne
Datasheet
Download ME3103 Datasheet




Microne ME3103
ME3103
1A Step-Down DC-DC Converter ME3103
General Description
The ME3103 is a step-down current-mode, DC-DC
converter. At heavy load, the constant-frequency PWM
control performs excellent stability and transient
response. To ensure the longest battery life in portable
applications, the ME3103 provides a power-saving
pulse -Skipping Modulation (PSM) mode to reduce
quiescent current under light load operation to save
power.
The ME3103 supports a range of input voltages from
2.5V to 5.5V, allowing the use of a single
Li+/Li-polymer cell, multiple Alkaline/NiMH cell, USB,
and other standard power sources. The output voltage
is adjustable from 0.6V to the input voltage, while the
part number suffix ME3103 indicates pre-set output
voltage of 3.3V, 2.8V, 2.5V, 1.8V, 1.5V, 1.2V or
adjustable. All versions employ internal power switch
and synchronous rectifier for to minimize external part
count and realize high efficiency. During shutdown, the
input is disconnected from the output and the
shutdown current is less than 0.1μA. Other key
features include under-voltage lockout to prevent deep
battery discharge.
Features
Efficiency up to 96%
Only 40μA (TYP.) Quiescent Current
Output Current: Up to 1A
Internal Synchronous Rectifier
1.5MHz Switching Frequency
Soft Start
Under-Voltage Lockout
Short Circuit Protection
Thermal Shutdown
Applications
Cellular Phone
Portable Electronics
Wireless Devices
Cordless Phone
Computer Peripherals
Battery Powered Widgets
Electronic Scales
Digital Frame
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Microne ME3103
Selection Guide
ME3103
Typical Application
Fixed Output Voltage
Adjustable Output Voltage
VO
0.6  1
R1 
R2
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Microne ME3103
Pin Configuration
Pin information
Pin Number
1
2
3
4
5
Name
EN
GND
SW
VIN
FB
ME3103
Function
Chip Enable
Ground
Switch
Input
Feedback
Absolute Maximum Ratings
Parameter
Power supply voltage, VIN
voltage at ENFB Pin
voltage at SW Pin
Internal Power Dissipation, SOT23-5
Operating Ambient Temperature
Storage Temperature
Soldering temperature and time
Block Diagram
Symbal
VIN
VEN,VFB
VSW
PD
Topr
Tstg
Tsolder
Rating
-0.36.0
-0.3VIN
-0.3VIN + 0.3
300
-40~85
-40~+150
260°C, 10S
Unit
V
V
V
mW
°C
°C
°C
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