DESCRIPTION
The MP2259 is a monolithic integrated stepdown
switch mode converter with an internal
power MOSFET. It achieves 1A continuous
output current over a wide input supply range
with excellent load and line regulation.
Current mode operation provides fast transient
response and eases loop stabilization.
Fault condition protection includes cycle-by-cycle
current limiting and thermal shutdown.
The MP2259 requires a minimum number of
readily available standard external components.
The MP2259 is available in TSOT23-6 and
SOT23-6 packages.
FEATURES
• 1A Output Current
• 0.5Ω Internal Power MOSFET Switch
• Stable with Low ESR Output Ceramic
Capacitors
• Up to 92% Efficiency
• 0.1μA Shutdown Mode
• Fixed 1.4MHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Wide 4.5V to 16V Operating Input Range
• Output Adjustable from 0.81V to 14V
• Available in TSOT23-6 and SOT23-6 Packages
APPLICATIONS
• Hand Disk Drive
• xDSL Modems Cable
• Set-Top Box