厂商：Freescale
类别：16位单片机
厂商：Linear
类别：A/D 数据转换器
类别：DC/DC控制器
厂商：Yageo
类别：电阻器网络与阵列
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
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特点High Output Voltage: Up to 90VIntegrated Schottky Diodes48V, 280mA Internal SwitchHigh Side APD Current MonitorAdjustable Switching Frequency: 650kHz or 1.1MHzWide VIN Range: 2.5V to 16VSurface Mount ComponentsLow Shutdown Current: <1μASoft-StartInternal CompensationCTRL Pin Allows Output Adjustment with No Polarity Inversion3mm × 3mm 16-Lead QFN Package典型应用典型应用描述描述 The LT3482 is a fixed frequency current mode step-up DC/DC converter with voltage doubler designed to bias avalanche photodiodes (APDs) in optical receivers. It can provide up to 90V output. The LT3482 features high side APD current monitoring with better than 10% relative accuracy over the entire temperature range. The integrated power switch, Schottky diodes and APD current monitor allow a small converter footprint and low solution cost. Constant switching frequency results in predictable output noise that is easy to filter. The inductor-based topology ensures an input free from switching noise. An integrated high side current monitor produces a current proportional to APD current with better than 10% relative accuracy over four decades of dynamic range in the input range of 250nA to 2.5mA. This current can be used as a reference to provide a digitally programmed output voltage via the CTRL pin. The LT3482 is available in the tiny footprint (3mm × 3mm) 16-lead QFN package.