Monolithic Power Systems (MPS) - MPQ2908A

The MPQ2908A is a high-voltage, synchronous, step-down controller that directly steps down voltages from up to 60V. The MPQ2908A uses pulse-width modulation (PWM) current control architecture with accurate cycle-by-cycle current limiting and is capable of driving dual N-channel MOSFETs.
Advanced asynchronous mode (AAM) enables non-synchronous operation to optimize light-load efficiency.

The operating frequency of the MPQ2908A can be programmed by an external resistor or synchronized to an external clock for noise-sensitive applications. Full protection features include precision output over-voltage protection (OVP), output over-current protection (OCP), and thermal shutdown.

Features

• Wide 4V to 60V Operating Input Range
• Dual N-Channel MOSFET Driver 
• 0.8V Voltage Reference with ±1.5% Accuracy Over Temperature
• Low Dropout Operation: Maximum Duty Cycle at 99.5% 
• Programmable Frequency Range: 100kHz -1000kHz
• External Sync Clock Range: 100kHz -1000kHz
• 180º Out-of-Phase SYNCO Pin
• Programmable Soft Start (SS)
• Power Good (PG) Output Voltage Monitor
• Selectable Cycle-by-Cycle Current Limit 
• Output Over-Voltage Protection (OVP)
• Over-Current Protection (OCP)
• Internal LDO with External Power Supply Option
• Programmable Forced CCM and AAM 
• Available in TSSOP20-EP and QFN-20 (3mmx4mm) Packages
• AEC-Q100 Grade-1

Applications

• Automotive 
• Industrial Control Systems

Block diagram