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ME5513 Datasheet Preview

ME5513 Datasheet

2A 380KHZ 25V PWM Buck DC/DC Converter

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2A 380KHZ 25V PWM Buck DC/DC Converter
General Description
The ME5513 is a 380 KHz fixed frequency monolithic
step down switch mode regulator with a built in internal
Power MOSFET. It achieves 2A continuous output
current over a wide input supply range with excellent load
and line regulation.
The device includes a voltage reference, oscillation
circuit, error amplifier, internal PMOS and etc.
The PWM control circuit is able to adjust the duty ratio
linearly from 0 to 100%. An enable function, an over
current protection function and a short circuit protection
function are built inside. An internal compensation block
is built in to minimize external component count.
The ME5513 serves as ideal power supply units for
portable devices.
ME5513(Pb-free)
Features
2A Constant Output Current
140mRDSON Internal Power PMOSFET Switch
Up to 95% Efficiency
Fixed 380KHz Frequency
Wide 1.8V to 25V Input Voltage Range
Output Adjustable from 1.20V to21V
Built in Frequency Compensation
Built in Thermal Shutdown Function
Built in Current Limit Function
SOIC-8 Package is Available
The minimum dropout up to 0.3V
Applications
Portable DVD
LCD Monitor / TV
Battery Charger
ADSL Modem
Telecom / Networking Equipment
Pin Configurations
GND
FB
GND
EN
SW
NC
VIN SW
Figure 2 Pin Configuration of ME5513 (Top View)
Jan, 2007-Ver1.0
Jun, 2007-Ver 2.2
1
1




Matsuki

ME5513 Datasheet Preview

ME5513 Datasheet

2A 380KHZ 25V PWM Buck DC/DC Converter

No Preview Available !

2A 380KHZ 25V PWM Buck DC/DC Converter
ME5513(Pb-free)
Pin Description
Pin Number
3
Pin Name
NC
4 Vin
5,6 SW
7,8 GND
1 FB
2 EN
Description
Not Connect.
Supply Voltage Input Pin. ME5513 operates from a 1.8V to 25V DC voltage.
Bypass Vin to GND with a suitably large capacitor to eliminate noise on the
input.
Power Switch Output Pin. SW is the switch node that supplies power to the
output.
Ground Pin. Care must be taken in layout. This pin should be placed outside
of the Schottky Diode to output capacitor ground path to prevent switching
current spikes from inducing voltage noise into ME5513.
Feedback Pin. Through an external resistor divider network, FB senses the
output voltage and regulates it. The feedback threshold voltage is 1.20V.
Enable Pin. Drive EN pin high to turn on the device, drive it low to turn it off.
Jan, 2007-Ver1.0
Jun, 2007-Ver 2.2
2
2


Part Number ME5513
Description 2A 380KHZ 25V PWM Buck DC/DC Converter
Maker Matsuki
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