12A, Wide-Input 3V to 18V, 1.4MHz Synchronous Step-Down Converter with PG and External Soft Start in 3mmx3mm QFN Package
The MP8774H is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP8774H offers a very compact solution that achieves 12A of continuous output current with excellent load and line regulation over a wide input range. The MP8774H uses synchronous mode operation for higher efficiency over the output current load range.
Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation.
Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown.
The MP8774H requires a minimal number of readily available, standard external components, and is available in a space-saving QFN-16 (3mmx3mm) package.
- Output Adjustable from 0.6V
- Wide 3V to 18V Operating Input Range
- 12A Output Current
- 16mΩ/5.5mΩ Low RDS(ON) Internal Power MOSFETs
- 100μA Quiescent Current
- High-Efficiency Synchronous Mode Operation
- Pre-Biased Start-Up
- Fixed 1.4MHz Switching Frequency
- External Programmable Soft-Start Time
- Enable (EN) and Power Good (PG) for Power Sequencing
- Over-Current Protection and Hiccup Mode
- Thermal Shutdown
- Available in a QFN-16 (3mmx3mm) Package
- fsw (max) (kHz)1400
- Vin (min) (V)3
- Vin (max) (V)18
- Iout (max) (A)12
- Vfb (V)0.6
- Iq (typ) (mA)0.1
- PackageQFN-16 (3x3)
- Control ModeCOT
- Common FeaturesExternal Soft Start, Light-Load Efficiency, Power Good, Synchronous Rectification
High-Efficiency, 1400kHz, 12A, 18V Step-Down ConverterEvaluation Board
The EV8774H-Q-00AEvaluation Board is designed to demonstrate the capabilities of MPS’ MP8774H, a fully-integrated high-frequency, synchronous rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 12A continuous output current over a wide input range, with excellent load and line regulation. The MP8774H has synchronous-mode operation for higher efficiency over the output current-load range.
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, UVP, and thermal shutdown.
The MP8774H requires a minimal number of readily-available, standard, external components and is available in a space-saving QFN-16 (3mmх3mm) package.
$25.00 + tax