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MT2482 Datasheet Preview

MT2482 Datasheet

2A Synchronous Step-Down Converter

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MT2482 pdf
AEROSEMI
MT2482
1.2M/600KHz, 18V2A Synchronous
Step-Down Converter
FEATURES
High Efficiency: Up to 94%
1.2MHz/600KHz Frequency Operation
2A Output Current
No Schottky Diode Required
4.5V to 18V Input Voltage Range
Output Adjustable Down to 0.923V
Slope Compensated Current Mode Control for
Excellent Line and Load Transient Response
Integrated internal compensation
Stable with Low ESR Ceramic Output
Capacitors
Over Current Protection with Hiccup-Mode
Thermal Shutdown
Inrush Current Limit and Soft Start
Available in SOP8 Package
-40°C to +85°C Temperature Range
APPLICATIONS
Distributed Power Systems
Digital Set Top Boxes
Flat Panel Television and Monitors
Wireless and DSL Modems
Notebook Computer
GENERAL DESCRIPTION
The MT2482 is a fully integrated, high– efficiency 2A
synchronous rectified step-down converter. The
MT2482 operates at high efficiency over a wide output
current load range.
This device offers two operation modes, PWM control
and PFM Mode switching control, which allows a high
efficiency over the wider range of the load.
The MT2482 requires a minimum number of readily
available standard external components and is
available in an 8-pin SOIC ROHS compliant package.
TYPICAL APPLICATION
Figure 1. Basic Application Circuit
Aerosemi Technology Co., Ltd
1
Free Datasheet http://www.datasheetlist.com/



Aerosemi
Aerosemi

MT2482 Datasheet Preview

MT2482 Datasheet

2A Synchronous Step-Down Converter

No Preview Available !

MT2482 pdf
MT2482
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage …… -0.3V to 20V
EN,FB Voltages ……….…-0.3 to 6V
SW Voltage …………-0.3V to (Vin+0.5V)
BS Voltage ………….. (Vsw-0.3) to (Vsw+5V)
Operating Temperature Range … -40°C to +85°C
Lead Temperature(Soldering,10s) ….…....+300°C
Storage Temperature Range ….…-65°C to 150°C
PIN DESCRIPTION
PIN NAME
FUNCTION
1
BS
Bootstrap. A capacitor connected between SW and BST pins is required to form a
floating supply across the high-side switch driver.
2 VIN Power supply Pin
3 SW Switching Pin
4 GND Ground
5
FB
Adjustable version feedback input. Connect FB to the center point of the external
resistor divider.
6 NC No Connect
Enable Pin. EN is pulled up to 3V with a 1uA current, and contains a precise 1.4V
7 EN logic threshold. Drive this pin to a logic-high or leave unconnected to enable the IC.
Drive to a logic-low to disable the IC and enter micro-power shutdown mode.
8 NC No Connect
PIN CONFIGURATION
BS
VIN
SW
GND
18
27
36
45
SOP8
(MT2482)
N/C
EN
N/C
FB
Aerosemi Technology Co., Ltd
2
Free Datasheet http://www.datasheetlist.com/


Part Number MT2482
Description 2A Synchronous Step-Down Converter
Maker Aerosemi
Total Page 9 Pages
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