厂商:Freescale
类别:16位单片机
厂商:Panasonic
类别:控制盘用继电器
厂商:
类别:PhotoMOS(MOSFET输出光电耦合器)
类别:8051单片机
厂商:Atmel
类别:ATtiny系列单片机
厂商:Renesas
类别:H8系列单片机
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特点 Adjustable/Selectable 3V, 3.3V or 5V Output Voltages 2V to 10V Input Voltage Range Up to 50mA Output Current Only Three External Capacitors RequiredSoft Start Limits Inrush Current at Turn-OnLow Operating Current: 60μAVery Low Shutdown Current: < 1μA Shutdown Disconnects Load from V IN V OUT Programmable to 3V/5V or 3.3V/5V Short-Circuit and Overtemperature Protected 650kHz Switching FrequencyOpen-Drain Power-On Reset OutputAvailable in SO-8 Package典型应用典型应用描述描述 The LTC?1515, LTC1515-3/5 and LTC1515-3.3/5 are micropower switched capacitor DC/DC converters that produce a regulated output voltage by either stepping up or stepping down the input voltage. Output voltage is adjustable using an external resistor divider (LTC1515) or programmable to either 3V/5V (LTC1515-3/5) or 3.3V/5V (LTC1515-3.3/5) using a logic pin. A unique architecture allows the parts to accommodate a wide input voltage range (2V to 10V) while maintaining ±4% regulation. Additional circuitry prevents excessive inrush current and output voltage ripple when large V IN to V OUT differentials are present. An internal power-on reset circuit forces the POR pin low on initial power-up. The POR output remains low until 200ms (typ) after V OUT is in regulation. The parts are short-circuit and overtemperature protected. Battery life is maximized by very low operating currents (I CC = 60μA typ, I CC <1μA in shutdown). All three parts are available in an SO-8 package.