厂商：Freescale
类别：16位单片机
厂商：
类别：瞬态抑制二极管
类别：PhotoMOS(MOSFET输出光电耦合器)
类别：EEPROM
厂商：Atmel
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特点 V OUT as Low as 0.6V High Power Switching Regulator Controller for 3.3V-5V to 0.6V-3.xV Step-Down ApplicationsNo Current Sense Resistor RequiredLow Input Supply Voltage Range: 3V to 8VMaximum Duty Cycle >91% Over TemperatureAll N-Channel External MOSFETsExcellent Output Regulation: ±1% Over Line, Load and Temperature VariationsHigh Efficiency: Over 95% PossibleAdjustable or Fixed 2.5V Output (LTC3832)Programmable Fixed Frequency Operation: 100kHz to 500kHzExternal Clock SynchronizationSoft-StartLow Shutdown Current: <10μAOvertemperature ProtectionAvailable in SO-8 and SSOP-16 Packages典型应用典型应用描述The LTC?3832/LTC3832-1 are high power, high efficiency switching regulator controllers optimized for 3.3V-5V to 0.6V-3.xV step-down applications. A precision internal reference and feedback system provide ±1% output regulation over temperature, load current and line voltage variations. The LTC3832/LTC3832-1 use a synchronous switching architecture with N-channel MOSFETs. Additionally, the chip senses output current through the drain-source resistance of the upper N-channel MOSFET, providing an adjustable current limit without a current sense resistor.The LTC3832/LTC3832-1 operate with an input supply voltage as low as 3V and with a maximum duty cycle of >91% over temperature. They include a fixed frequency PWM oscillator for low output ripple operation. The 300kHz free-running clock frequency can be externally adjusted or synchronized with an external signal from 100kHz to 500kHz. In shutdown mode, the LTC3832 supply current drops to <10μA. The LTC3832-1 is the SO-8 version without current limit, frequency adjustment and shutdown functions.