APW8871 Description
The APW8871 integrates two synchronous buck PWM controller and high/low side power MOSFETs to generate VPP and VDDQ, two sourcing and sinking LDO linear regulator to generate VTT and VTTREF. It provides a plete power supply for DDR4 memory system. It offers the lowest total solution cost in system where space is at a premium.
APW8871 Key Features
- High Input Voltages Range from 4.5V to 25V Input
- Provide 1.2V (DDR4) or Adjustable Output Voltage
- +1% Accuracy over Temperature
- High Efficiency Performance up to90%scale & Low Shutdown Current <1uA
- Integrated High_Side N-Channe l MOSFET 20mΩ a nd Low_ Side N-Cha nne l MOSFET 10 m Ω @ VCC=5V
- Integrated Bootstrap Forward P-CH MOSFET
- Built in Internal Soft-Sta rt: 0.4 ms(typ.) and SoftStop Functions for PWM Output
- Built In Automatic PFM/PWM Mode Selection
- Fixed 800kHz Switching Frequency
- Built In PMAX Signal for Total Power Indicator