Articles Tagged with ''programmable''

Linear's 600 mA negative LDO+ offers rail-to-rail operation, programmable current limit & output current monitor

Linear Technology Corp. announces the LT3090, the newest member of its LDO+™ family, a 600 mA low dropout negative linear regulator featuring low noise, rail-to-rail operation, precision programmable current limit and a bidirectional output current monitor. The device is cable-drop compensation capable, easily parallelable for higher current or PCB heat spreading and configurable as a floating 3-terminal regulator.


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Linear introduces USB 5 V, 2.5 A, 42 V input synchronous buck with cable drop compensation

Linear Technology Corp. announces the LT8697, a 2.5 A, 42 V input capable synchronous step-down switching regulator designed to power 5 V USB applications. The LT8697 delivers precise 5 V regulation at a remote USB port using programmable cable drop compensation to accurately correct the voltage drop from a long connecting cable regardless of variations in load current. The LT8697’s forced continuous operation enables the LT8697 to sink current, maintaining full frequency operation at zero load, further enhancing accurate 5V regulation during load transients.


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Linear introduces controller with spread spectrum frequency modulation & short-circuit protection

Linear Technology announces the LT3795, a 110V, high-side current sense DC/DC converter designed to regulate a current or voltage to a constant value, ideal for driving high brightness (HB) LEDs. Its 4.5V to 110V input voltage range makes it appropriate for a wide variety of applications, including automotive, industrial and architectural lighting. The LT3795 uses an external low side N-channel MOSFET and can drive up to 90V of white LEDs from a nominal 12V input, delivering in excess of 50 watts.


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Analog Devices’ 4-GHz PLL synthesizer offers leading phase noise performance

Analog Devices Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications and leading provider of RF ICs (radio frequency integrated circuits), announced the release of a PLL synthesizer that offers leading phase noise performance. An upgrade to the widely used 4-GHz ADF4153 fractional-N PLL, the new, pin- and software-compatible ADF4153A PLL synthesizer facilitates improved integrated phase noise in a variety of applications including communications infrastructure, pulse-Doppler and FMCW (frequency-modulated continuous-wave) radar applications, test and instrumentation equipment, microwave point-to-point systems, PMR (professional mobile radio), VSATs (very small aperture terminals) and aerospace systems.


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