Monolithic Power Systems (MPS) MP2147 Step-Down Converters
Monolithic Power Systems (MPS) MP2147 Step-Down Converters achieve up to 4A continuous output current from a 2.8 to 5.5V input voltage with excellent load and line regulation. Designers can regulate the output voltage as low as 0.6V. The constant-on-time control (COT) delivers a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. MPS MP2147 Step-Down Converters are available in a 2mm x 3mm QFN package and require only a minimal number of readily available external components. The MP2147 series is well-suited for a wide range of applications, including storage (SSD, HDD), portable instruments, and battery-powered devices.
Features
- Up to 4A output current
- Wide 2.8V-to-5.5V operating input range
- 22mΩ and 14mΩ internal power MOSFETs
- 40μA quiescent current
- 1.2MHz fixed switching frequency
- 1% feedback accuracy
- External mode control
- External VCON control
- Adjustable output from 0.6V
- 1.5ms internal SS time with pre-bias startup
- Cycle-by-cycle overcurrent protection
- Short-circuit protection with hiccup mode
- Stable with low-ESR output ceramic capacitors
- Thermal shutdown
- Available in a 2mm x 3mm QFN package
- Output discharge function
Applications
- Storage (SSD, HDD)
- Portable instruments
- Battery-powered devices
Typical Application Circuit
Publicado: 2015-02-27
| Actualizado: 2022-03-11