厂商:Freescale
类别:16位单片机
厂商:Littelfuse
类别:TVS二极管
厂商:Panasonic
类别:功率继电器
厂商:
类别:PhotoMOS(MOSFET输出光电耦合器)
厂商:TDK
类别:带通滤波器
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特点1.1A, 0.5 Ohms, 30V Internal SwitchOperates with VIN as Low as 1.5V600kHz Fixed Frequency OperationLow-Battery Detector Active in ShutdownLow VCESAT Switch: 410mV at 800mAPin-for-Pin Compatible with the LT1317BSmall 8-Lead MSOP Package and SO Packages典型应用典型应用描述The LT?1949 is a fixed frequency step-up DC/DC converter with a 1A, 0.5 Ohms internal switch. Capable of generating 10V at 175mA from a 3.3V input, the LT1949 is ideal for generating bias voltages for large screen LCD panels. Constant frequency 600kHz operation results in a low noise output that is easy to filter and the 30V switch rating allows output voltage up to 28V using a single inductor. An external compensation pin gives the user flexibility in optimizing loop compensation, allowing small low ESR ceramic capacitors to be used at the output. The 8-lead MSOP and SO packages ensure a low profile overall solution.The LT1949 includes a low-battery detector that stays alive when the device goes into shutdown. Quiescent current in shutdown is 25μA, while operating current is 4.5mA.