MP9928

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4V-60V Input, Current Mode, Synchronous Step-Down Controller



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产品描述

The MP9928 is a high-voltage, synchronous step-down switching regulator controller that can directly step down voltages from up to 60V. The MP9928 uses PWM current control architecture with accurate cycle-by-cycle current limiting. It is capable of driving dual N-channel MOSFET switches.
AAM Mode (Advanced asynchronous mode) enables non-synchronous operation and PFM mode to optimize light load efficiency.
The operating frequency of MP9928 can be programmed by an external resistor or synchronized to an external clock for noise-sensitive applications. Fault protections are available including a precision output over voltage protection (OVP), output over current protection (OCP), and thermal shutdown.
The MP9928 is available in TSSOP20-EP package and QFN-20 (3mmx4mm) package. 

产品特性

  • Wide 4V to 60V Operating Input Range
  • Dual N-Channel MOSFET Driver
  • Low Dropout Operation: Maximum Duty Cycle at 99.5%
  • Programmable Frequency Range: 100kHz -1000kHz
  • 180º Out-of-Phase SYNCO
  • External Soft-Start and PG Pin
  • Selectable Cycle-by-Cycle Current Limit
  • Output Over Voltage Protection
  • Internal LDO with Externally Power Supply Option
  • Programmable CCM and AAM Pulse-Skipping Mode
  • Accuracy Over Temperature Protection
  • TSSOP20-EP package and QFN-20 (3mmx4mm) Package

技术参数

  • PGYes
  • SS外部
  • Special Features外部频率同步, Frequency Adjustable, Hiccup Current Limit
  • GradeCatalog
  • fsw (max) (kHz)1000
  • 额定输出1
  • Iq (typ) (mA)0.75
  • Vfb (V)0.8
  • PackageQFN-20 (3x4), TSSOP20 EP
  • Max Duty Cycle (%)0.995
  • Vin (max) (V)60
  • 最小输入电压4

60V Current Mode, Synchronous Step-Down Controller Evaluation Board

The EV9928-F-00B Evaluation Board is designed to demonstrate the capabilities of MP9928. The MP9928 is a high-voltage, synchronous step-down controller that directly steps down voltages from up to 60V. The MP9928 uses PWM current control architecture with accurate cycle-by-cycle current limiting and is capable of driving dual N-channel MOSFETs.

The operating frequency of the MP9928 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.

The MP9928 is available in TSSOP20-EP and QFN-20 (3mmx4mm) packages. This board is available in TSSOP20-EP package.

¥ 178.75 + tax


参考资料


质量方针和证书
所有 MPS 产品都保证无铅,无卤素,并且遵守 RoHS 规范。详情请见“环境认证”。