MP2147GD-P

1. DESCRIPTION

The MP2147GD-P is a monolithic, step-down, switchmode converter with internal power MOSFETs. It can achieve up to 4A continuous output current from a 2.8V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to 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. The MP2147GD-P is available in a small QFN2×3mm package and requires only a minimal number of readily-available, standard, external components. MP2147GD-P is ideal for a wide range of applications, including storage (SSD, HDD), highperformance DSPs, FPGAs, and distributed power systems. 

2. FEATURES

   1. Up to 4A Output Current

   2. Wide 2.8V-to-5.5V Operating Input Range

   3. 22mΩ and 14mΩ Internal Power MOSFETs

   4. 40µA Quiescent Current

   5. 1.2MHz Fixed Switching Frequency

   6. 1% Feedback Accuracy

   7. External Mode Control

   8. External VCON Control

   9. Adjustable Output from 0.6V

 10. 1.5ms Internal SS Time with Pre-Bias Startup

 11. Cycle-by-Cycle Over Current Protection

 12. Short Circuit Protection with Hiccup Mode

 13. Stable with Low-ESR Output Ceramic Capacitors

 14. Thermal Shutdown

 15. Available in a 2mm×3mm QFN Package

 16. Output Discharge Function

3. APPLICATIONS

   1. Storage (SSD, HDD)

   2. Portable Instruments

   3. Battery-Powered Devices 

4. TYPICAL APPLICATION

5. PACKAGE REFERENCE

6. BLOCK DIAGRAM