厂商：Freescale
类别：16位单片机
厂商：Linear
类别：DC/DC控制器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
类别：I2C和SMBus总线缓冲器和加速器
厂商：SGmicro
类别：单通道LDO
我要询价我要收藏
特点2.7V to 5.5V Input Voltage RangeNo InductorsTypical Efficiency 50% Higher than LDOsSpread Spectrum OperationLow Input and Output Noise Shutdown Disconnects Load from V IN Dual Adjustable Independent Outputs (Range: 0.9V to 1.6V)Output Current: 250mA Each Output Low Operating Current: I IN = 60μA Typ (35μA with One Output Enabled) Low Shutdown Current: I IN = 0.01μA Typ Soft-Start Limits Inrush Current at Turn OnShort Circuit and Over Temperature ProtectedAvailable in 4mm x 3mm 12-Pin DFN Package典型应用典型应用描述The LTC?3252 is a switched capacitor step-down DC/DC converter that produces two adjustable regulated outputs from a single 2.7V to 5.5V input. The part uses switched capacitor fractional conversion to achieve a typical efficiency increase of 50% over that of a linear regulator. No inductors are required.A unique constant frequency, spread spectrum architecture provides a very low noise regulated output as well as low noise at the input. The part also has Burst Mode? operation to provide high efficiency at low output currents, as well as ultralow current shutdown.Low operating currents (60μA with both outputs enabled, 35μA with one output enabled) and low external parts count make the LTC3252 ideally suited for space-constrained battery-powered applications. The part is shortcircuit and overtemperature protected and is available in a tiny 4mm x 3mm 12-pin DFN package.