Description
The MP28257 is a fully-integrated, synchronous,
O step-down, switch-mode converter with a
programmable frequency.It offers a very
F compact solution that can provide up to 4A of
continuous output current over a wide input supply range with excellent load and line
D regulation, and can operate at high efficiency
over a wide output current load range.E Constant-on-time control mode provides fast
transient response and eases loop stabilization.D Protections include short-circuit protection, N S
Features
- Wide 4.2V-to-20V Operating Input Range.
 
- 4A Continuous Output Current.
 
- Internal 120mΩ High-Side, 50mΩ Low-
Side Power MOSFETs.
 
- Stable with Ceramic Output Capacitors.
 
- Proprietary Switching Loss-Reduction
Technology.
 
- Power-Good Indicator.
 
- Soft Startup/Shutdown.
 
- Programmable Switching Frequency.
 
- SCP, OCP, OVP, UVP Protection and
Thermal Shutdown.
 
- Output Adjustable from 0.815V to 13V.
 
- Available in a 2mmx3mm QFN12
Package.