Model MP9929 -100V Input, Current Mode, Synchronous Step-Down Controller
The MP9929 is a high-voltage, synchronous, step-down, switching regulator controller that can directly step down voltages up to 100V. The MP9929 uses pulse-width modulation (PWM) current control architecture with accurate cycle-by-cycle current limiting. It is capable of driving dual N-channel MOSFET switches. Advanced asynchronous modulation (AAM) mode enables nonsynchronous operation and pulse-frequency modulation (PFM) mode to optimize light-load efficiency. The MP9929’s operating frequency can be configured by an external resistor or synchronized to an external clock for noise-sensitive applications. Fault protections include precise output over-voltage protection (OVP), output over-current protection (OCP), and thermal shutdown. The MP9929 is available in a QFN-26 (4mmx6mm) package.
- Up to 100V Input Range
- 7V to 18V VDRV Voltage (VDRV) Range
- Dual N-Channel MOSFET Drivers
- Low-Dropout (LDO) Operation: 99.5% Maximum Duty Cycle
- 100kHz to 1000kHz Configurable Frequency Range
- 180° Out-of-Phase SYNCO
- External Soft Start (SS) and PG Pins
- Selectable Cycle-by-Cycle Current Limit
- Output Over-Voltage Protection (OVP)
- Configurable Continuous Conduction Mode (CCM), Advanced Asynchronous Modulation (AAM) Mode, and Pulse-Skip Mode (PSM)
- Over-Temperature Protection (OTP)
- Available in a QFN-26 (4mmx6mm) Package