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STMicroelectronics ST1CC40 Step-Down DC-DC Converters

STMicroelectronics ST1CC40 Step-Down DC-DC Converters are 850kHz fixed switching frequency monolithic step-down DC-DC converters designed to operate as precise constant current source with an adjustable current capability up to 3A DC. The regulated output current is set connecting a sensing resistor to the feedback pin. The embedded synchronous rectification and the 100mV typical RSENSE voltage drop enhance the efficiency performance. The size of the overall application is minimized thanks to the high switching frequency and ceramic output capacitor compatibility. STMicroelectronics ST1CC40 Step-Down DC-DC Converters are fully protected against thermal overheating, overcurrent, and output short circuit. Inhibit mode minimizes the current consumption in standby.

Features

  • 3.0V to 18V operating input voltage range
  • 850kHz fixed switching frequency
  • 100mV typ. current sense voltage drop
  • 6µA standby current in inhibit mode
  • ±7% output current accuracy
  • Synchronous rectification
  • 95mΩ HS/69mΩ LS typical RDS(on)
  • Peak current-mode architecture
  • Embedded compensation network
  • Ceramic output capacitor compliant
  • Thermal shutdown

Applications

  • Battery chargers
  • Signage
  • Emergency lighting
  • High brightness LED driving
  • General lighting

Development Tool

STMicroelectronics STEVAL-ILL046V2评估板

基于STMicroelectronics ST1CC40降压直流-直流转换器的评估板。

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发布日期: 2013-07-18 | 更新日期: 2022-03-11