Description
The MP2144 is a monolithic, step-down, switch-
O mode converter with internal power MOSFETs.It can achieve up to 2A continuous output
F current from a 2.5V
to-5.5V input voltage with
excellent load and line regulation.The output voltage can be regulated to as low as 0.6V.D The constant-on-time control scheme provides E fast transient response and eases loop
stabilization.Fault condition protections include cycle-by-cycle current limiting and thermal
D S shutdown.N 2 The MP2144 is av
Features
- Wide 2.5V-to-5.5V Operating Input Range.
 
- Output Voltage as Low as 0.6V.
 
- 100% Duty Cycle in Dropout.
 
- Up to 2A Output Current.
 
- Low IQ: 40µA.
 
- 90mΩ and 60mΩ Internal Power MOSFET
Switches.
 
- Default 1.2MHz Switching Frequency.
 
- EN and Power-Good for Power Sequencing.
 
- Cycle-by-Cycle Over-Current Protection.
 
- Auto Discharge at Power-Off.
 
- Short-Circuit Protect with Hiccup Mode.
 
- Stable with Low-ESR O.