MT2499A
MT2499A
3.5A,4.5V-21V Input,340KHz
Synchronous Step-Down Converter
FEATURES
High Efficiency: Up to 94%
340KHz Frequency Operation
3.5A Output Current
No Schottky Diode Required
4.5V to 21V Input Voltage Range
0.925V Reference
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 ESOP8 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 MT2499A is a fully integrated, high– efficiency
3.5A synchronous rectified step-down converter.
The MT2499A 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 MT2499A requires a minimum number of
readily available standard external components
and is available in an ESOP8 ROHS compliant
package.