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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » ST1CC40 Step-Down DC-DC Converters - STM
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STMicroelectronics ST1CC40 Step-Down DC-DC Converters

STMicroelectronics ST1CC40
Step-Down DC-DC Converters

STMicroelectronics ST1CC40 Step-Down DC-DC Converters are a 850kHz fixed switching frequency monolithic step-down DC-DC converter 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. The device is 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 charger
  • Signage
  • Emergency lighting
  • High brightness LED driving
  • General lighting
Application Circuit
Application Circuit
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