Monolithic Power Systems (MPS) MP8638 Synchronous Step-Down Converters are fully integrated, high-frequency, rectified, and_switch-mode converters. These converters achieve up to 12A of continuous output current (IOUT), with an adjustable current limit (ILIMT). The MP8638 converters operate at high efficiency across the IOUT load range using internal and_low-on-resistance power MOSFETs and_ proprietary switching loss reduction techniques. These converters include an adaptive Constant-On-Time (COT) control mode that eases loop stabilization and_provides a fast transient response.
The MP8638 converters feature 100µA low Quiescent current (IQ), 1%_reference voltage (VREF), thermal shutdown, and_Over-Current Protection (OCP), Over-Voltage Protection (OVP), Under-Voltage Protection (UVP). These converters are used in high-end televisions, servers, telecommunication systems, cloud computing, 12V distribution power systems, networking systems, and_base stations.
Features
- Wide 4.5V to 16V operating input voltage (VIN) range
- 100µA low Quiescent current (IQ)
- 12A continous output current (IOUT)
- Proprietary switching loss reduction technique
- Adjustable current limit (ILIMT)
- Selectable switching frequency (fSW)
- Low RDS(ON) internal power MOSFETs
- Selectable external and_internal 3V3 power supply
- Adaptive Constant-On-Time (COT) Control for fast transient response
- Output discharge
- DC auto-tune loop and_remote differential sense
- Stable with POSCAP and_ceramic output capacitors
- 1%_reference voltage (VREF)
- Internal Soft Start (SS)
- Over-Current Protection (OCP)
- Under-Voltage Protection (UVP)
- OverVoltage Protection (OVP)
- Thermal shutdown
- Available in a QFN-16 (3mm x 3mm) package
Applications
- Telecommunication systems
- Networking systems
- Servers, cloud computing, and_storage
- 12V distribution power systems
- Base stations
- High-end televisions
- General-purpose Point-of-Load (POL) systems
- Game consoles and_graphic cards
