High-Efficiency, 8A, 18V, Synchronous Step-Down Converter
The MP2238 is a high frequency, synchronous, rectified, step-down switch-mode converter. It offers a fully integrated solution to achieve an 8A continuous output current with excellent load and line regulation over a wide input supply range.
Constant-on-time (COT) control operation provides fast transient response. Full protection features include hiccup over-current protection and thermal shutdown.
The MP2238 requires a minimal number of readily available, standard, external components with a space-saving 12-pin QFN 2mmx3mm package.
- Wide 4.2V to 18V Operating Input Range
- 8A Continuous Output Current
- 22mΩ/10mΩ Low RDS(ON) Internal Power MOSFETs
- Default 600mV Reference Voltage
- Adjustable Output Voltage
- 600kHz Switching Frequency
- Ton Extension
- Hiccup OCP Protection
- Thermal Shutdown Protection
- Available in a 12-Pin QFN 2mmx3mm Package
- fsw (max) (kHz)600
- Vin (min) (V)4.2
- Vin (max) (V)18
- Iout (max) (A)8
- Isw Limit (typ) (A)9.5
- Max Duty Cycle (%)85
- Vfb (V)0.6
- Iq (typ) (mA)0.15
- Regulated Outputs1
- Vout (max) (V)12
- Vout (min) (V)0.6
- PackageQFN-12 (2x3)
- Control ModeCOT
- Common FeaturesSynchronous Rectification
High-Efficiency, 8A, 18V. Step-Down ConverterEvaluation Board
The EV2238-D-00AEvaluation Board is designed to demonstrate the capabilities of MPS’ MP2238, a fully-integrated high-frequency, synchronous rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve an 8A continuous output current over a wide input range, with excellent load and line regulation.
Constant On-Time control operation provides very fast transient response and easy loop design as well as very tight output regulation.
Full protection features include SCP, OCP, and thermal shutdown.
The MP2238 requires a minimal number of readily-available, standard, external components and is available in a space-saving 12-pin QFN 2mmx3mm package.
$25.00 + tax