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Home » NEWEST Products » New by Manufacturer » ON Semiconductor » ON Semiconductor NCP1450A DC-DC Controllers
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ON Semiconductor NCP1450A DC-DC Controllers

ON Semiconductor NCP1450A DC-DC Controllers

ON Semiconductor NCP1450A DC-DC Controllers are PWM step−up DC−DC switching controllers that are specially designed for powering portable equipment from one or two cell battery packs. The NCP1450A series DC-DC Controllers from ON Semiconductor have a driver pin and EXT pin for connecting to an external transistor. Large output currents can be obtained by connecting a low ON−resistance external power transistor to the EXT pin. NCP1450A series DC-DC Controllers will automatically skip switching cycles under light load conditions to maintain high efficiency at light loads. With only six external components, the NCP1450A series allows a simple means to implement highly efficient converters for large output current applications. Applications include PDSs, MP3s, digital cameras, and electronic games.

Features
  • High Efficiency
  • Low Startup Voltage
  • Operation Down to 0.6 V
  • Five Standard Voltages: 1.9 V, 2.7 V, 3.0 V, 3.3 V, 5.0 V with High Accuracy ± 2.5%
  • Low Conversion Ripple
  • High Output Current up to 1000 mA
  • Fixed Frequency Pulse Width Modulation (PWM) at 180 kHz
  • Chip Enable Pin with On−chip 150 nA Pullup Current Source
  • Low Profile and Micro Miniature TSOP−5 Package
  • Pb−Free Packages are Available
Applications
  • Personal Digital Assistant (PDA)
  • Electronic Games
  • Portable Audio (MP3)
  • Digital Still Cameras
  • Handheld Instruments






  • ON Semiconductor
  • Semiconductors|IC-Power Management