DESCRIPTION
The MP2459 is a monolithic, step-down, switch-mode converter with a built-in power MOSFET. It achieves a 0.5A peak-output current over a wide input supply range with excellent load and line regulation. Current-mode operation provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2459 requires a minimal number of readily-available external components. The MP2459 is available in a TSOT23-6 package.
FEATURES
0.5A Peak Output Current
1Ω Internal Power MOSFET
Stable with Low-ESR Ceramic Output Capacitors
Up to 90% Efficiency
0.1μA Shutdown Mode
Fixed 480kHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over-Current Protection
Wide 4.5V-to-55V Operating Input Range
Output Adjustable from 0.81V to 0.95*VIN
Available in a TSOT23-6 Package
APPLICATIONS
Power Meters
Distributed Power Systems
Battery Chargers
Pre-Regulator for Linear Regulators
WLED Drivers
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality
Assurance. "MPS" and "The Future of Analog IC Technology" are registered trademarks of Monolithic Power Systems, Inc.
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