Monolithic Power Systems (MPS) MPS2143 Synchronous Step Down Switchers
Monolithic Power Systems (MPS) MPS2143 Synchronous Step Down Switchers are monolithic step-down switch-mode converters with internal power MOSFETs. The MPS2143 series can deliver up to 3A of continuous current from a 2.5 to 5.5V input, all with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. Constant-on-time control provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. MPS MPS2143 Synchronous Step Down Switchers are available in a small TSOT23-8 package, and only a minimal number of standard components are needed.
Features
- Wide 2.5V to 5.5V operating input range
- Output voltage as low as 0.6V
- 100% duty cycle in dropout
- Up to 3A output current
- Low 40µA IQ
- 80mΩ and 40mΩ internal power MOSFET switches
- Default 1.2MHz switching frequency
- EN and power-good for power sequencing
- Cycle-by-cycle overcurrent protection
- Auto discharge at power off
- Short-circuit Protect with hiccup mode
- Stable with low-ESR output ceramic capacitors
- Available in a TSOT23-8 package
Applications
- Low voltage I/O system power
- Handheld / battery-powered systems
- Wireless / networking cards
Typical Application
Publicado: 2015-05-14
| Actualizado: 2022-03-11