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ME3101A10 반도체 회로 부품 판매점

500mA Synchronous Step-Down DC/DC Converters



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Microne
ME3101A10 데이터시트, 핀배열, 회로
500mA Synchronous Step-Down DC/DC Converters ME3101 Series
Ver04
500mA Synchronous Step-Down DC/DC Converters ME3101 Series
Description
ME3101 series is a group of synchronous rectification
type DC/DC converters with a built-in 0.6P-channel
driver transistor and 0.7N-channel switching transistor,
designed to allow the use of ceramic capacitors. The ICs
enable a high efficiency, stable power supply with an
output current of 500mA to be configured using only a
coil and two capacitors connected externally.
With the built-in oscillator, oscillation frequency is
1.2MHz.As for operation mode, the ME3101 series can be
manually switched with automatic PWM/PFM switching
control mode, allowing fast response, low ripple and high
efficiency over the full range of load (from light load to
high output current conditions).
During standby, all circuits are shutdown to reduce
current consumption to as low as 1.0μA or less.
Typical Application Circuit
Feature
z Synchronous Step-Down DC/DC
z High Efficiency :93%(TYP)
z Low Ripple Voltage :10mV
z Output Current :500mA
z Oscillation Frequency :1.2MHz
z PWM/PFM Automatic Switching Control
z Maximum Duty Ratio :100%
z Ceramic Capacitor Compatible
z Ultra Small Packages :SOT-23-5L
z Soft-start ciruit built-in
Typical Application:
z Mobile phones (PDC, GSM, CDMA, IMT200
etc.)
z Bluetooth equipment
z PDA
z Portable communication modem
z Portable games
z Cameras
z Digital cameras
z Cordless phones
z Notebook computers
Typical Performance Characteristics
Efficiency vs. Output Current
L=3.3uHCin4.7uFCL=10uFTopr25
0.95
0.90
0.85
0.80
0.75
0.70
VIN=4V
VIN=4.5V
VIN=5V
VIN=6V
0.65
0.60
0.55
0.50
-100 0 100 200 300 400 500 600 700
IOUT (mA)
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ME3101A10 데이터시트, 핀배열, 회로
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
500mA Synchronous Step-Down DC/DC Converters ME3101 Series
Ver04
Pin Configuration
Pin information
ME3101AXX
Pin Number
1
2
3
4
5
Pin Name
VIN
VSS
CE/MODE
VOUT
LX
Function
Power Input
Ground
Chip Enable / Mode Switch
Output Voltage Sence
Switching Output
ME3101AXX-DS
Pin Number
1
2
3
4
5
Pin Name
CE/MODE
VSS
LX
VIN
VOUT
Function
Chip Enable / Mode Switch
Ground
Switching Output
Power Input
Output Voltage Sence
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