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ME2101 Datasheet Preview

ME2101 Datasheet

Step-up DC-DC Converter

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ME2101 Series
Ver 02
ME2101 Series Step-up DC-DC Converter
ME2101 Series is a PWM Step-up DC/DC
converter IC with low supply current by CMOS
process. High frequency noise that occurs during
switching is reduced by using advanced circuit
designed, output voltage is programmable in
0.1V steps between 2.0~5.0V and maximum
frequency is 100KHz(Typ.). A low ripple, high
efficiency step-up DC/DC converter can be
constructed of ME2101AxxX with only three
external components. Also available is a
CE(chip enable) function that reduce power
dissipation During shut-down mode., and an
independent Vdd pin function (separated power
supply and voltage detect pins) for fly-back
circuits.An inner soft-start circuit limits current
surges from input power supply at start up and
the reliability of the chip is improved.
ME2101XxxX is suitable for use with
battery-powered instruments with low noise and
low supply current.
Features
Small number of external components: only
an inductor, a diode and a capacitor
Low ripple and low noise
• Operating voltage range0.9V~6.5V
• Output voltage range2.0V~5.0V(step 0.1V)
• Output voltage accuracy:±2.5%
• Output Currentif Vin=3.0V and Vout=3.3Vthen
Iout=350mA
• Low start voltage0.9V(at Iout=1mA)
• Maximum oscillator frequency100KHz(Typ.)
• High Efficiency87%(Type)
• Slow-Start Time 15mS(Type)
• PACKAGESOT-23SOT-89.
Applications
Selection Guide
ME 21 01
A xx
X
Package
P–SOT89
M–SOT23
Feature Code
27–2.7V
30–3.0V
33–3.3
50–5.0V
…...
Version or Function
Product Type
Product Series
Microne
Power source for battery-powered
equipment
Power source for wireless mouse,
wireless keyboard, toys, cameras,
camcorders, VCRs, PDAs, and
hand-held communication equipment
Power source for appliances which
require higher cell voltage than that of
batteries used in the appliances
TYPE
ME2101Axx
ME2101Bxx
ME2101Cxx
ME2101Dxx
POSTFIX
M
P
M
P
M
P
M
P
PACKAGE
SOT-23-3
SOT-89-3
SOT-23-3
SOT-89-3
SOT-23-5
SOT-89-5
SOT-23-5
SOT-89-5
SWITCHING
TRANSISTOR
Build_in
Transistor
Extemal
Transistor
Build_in
Transistor
Extemal
Transistor
CE
FUNCTION
No
No
Yes
Yes
FEATURES
Lx
Ext
Lx+CE
Ext+CE
1(11)




Microne

ME2101 Datasheet Preview

ME2101 Datasheet

Step-up DC-DC Converter

No Preview Available !

Pin Configuration
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
ME2101 Series
Ver 02
Pin Assignment
ME2101Axx
PIN Number
SOT-23-3
SOT-89-3
11
32
23
PIN
NAME
Vss
Vout
Lx
ME2101Bxx
PIN Number
SOT-23-3
SOT-89-3
11
32
23
PIN
NAME
Vss
Vout
Ext
ME2101Cxx
PIN Number
SOT-23-5 SOT-89-5
45
22
54
13
31
PIN NAME
Vss
Vout
Lx
CE
NC
ME2101Dxx
PIN Number
SOT-23-5 SOT-89-5
45
22
54
13
31
PIN NAME
Vss
Vout
Ext
CE
NC
FUNCTION
Ground
Output voltage monitor, IC internal power supply
Switch
FUNCTION
Ground
Output voltage monitor, IC internal power supply
External switch transistor drive
FUNCTION
Ground
Output voltage monitor, IC internal power supply
Switch
Chip enable
NC
FUNCTION
Ground
Output voltage monitor, IC internal power supply
External switch transistor drive
Chip enable
NC
2(11)


Part Number ME2101
Description Step-up DC-DC Converter
Maker Microne
PDF Download

ME2101 Datasheet PDF






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