| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 5 Pin |
| Case/Package | TSOT-23-5 |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 2.70V (min) |
| Output Voltage | 2.5 V |
| Output Current | 500 mA |
| Number of Positions | 5 Position |
| Switching Frequency | 2.8 MHz |
| Input Voltage (Max) | 5.5 V |
| Input Voltage (Min) | 2.7 V |
| Output Voltage (Min) | 2.5 V |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 2.7 V |
| Input Voltage | 2.7V ~ 5.5V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Operating Temperature | -40℃ ~ 85℃ |
The MCP1603T-250I/OS is a synchronous Buck Regulator ideally suited for applications powered from 1-cell Li-ion or 2-cell/3-cell NiMH/NiCd batteries. At heavy loads, the MCP1603 operates in the 2MHz fixed frequency pulse-width modulation (PWM) mode, which provides a low noise, low-output ripple, small-size solution. When the load is reduced to light levels, the MCP1603 automatically changes operation to a pulse frequency modulation (PFM) mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation allow the MCP1603 to achieve the highest efficiency over the entire operating current range.
● Over 90% typical efficiency
● Automatic PWM-to-PFM mode transition
● Internally compensated
● Undervoltage lockout (UVLO)
● Overtemperature protection
● 100% Duty cycle operation
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