MAX1795, MAX1796, MAX1797 低电流、
max1795, max1796, max1797 低电流、升压型dc-dc转换器，可真正关断
the max1795/max1796/max1797 are high efficiency step-up dc-dc converters intended for small portable hand-held devices. these devices feature maxim's true-shutdown™ circuitry, which fully disconnects the output from the input in shutdown, improves efficiency, and eliminates costly external components. all three devices also feature maxim's proprietary lx-damping circuitry for reduced emi in noise-sensitive applications. for additional in-system flexibility, a battery monitoring comparator (lbi/lbo) remains active even when the dc-dc converter is in shutdown.
the input voltage range is +0.7v to vout, where vout can be set from +2v to +5.5v. startup is guaranteed from +0.85v. the max1795/max1796/max1797 have a preset, pin-selectable 5v or 3.3v output. the output can also be adjusted to other voltages, using two external resistors. the three devices differ only in their current limits, allowing optimization of external components for different loads: the max1795, max1796, and max1797 have current limits of 0.25a, 0.5a, and 1a, respectively. all devices are packaged in a compact 8-pin µmax® package that is only 1.09mm tall and half the size of an 8-pin so.
关键特性
>95% efficiency true-shutdown circuitry output disconnects from input in shutdown no external schottky diode needed 25µa quiescent supply current low-noise antiringing feature lbi/lbo comparator enabled in shutdown 2µa shutdown current 8-pin µmax package 应用/使用
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the max1795/max1796/max1797 are high efficiency step-up dc-dc converters intended for small portable hand-held devices. these devices feature maxim's true-shutdown™ circuitry, which fully disconnects the output from the input in shutdown, improves efficiency, and eliminates costly external components. all three devices also feature maxim's proprietary lx-damping circuitry for reduced emi in noise-sensitive applications. for additional in-system flexibility, a battery monitoring comparator (lbi/lbo) remains active even when the dc-dc converter is in shutdown.
the input voltage range is +0.7v to vout, where vout can be set from +2v to +5.5v. startup is guaranteed from +0.85v. the max1795/max1796/max1797 have a preset, pin-selectable 5v or 3.3v output. the output can also be adjusted to other voltages, using two external resistors. the three devices differ only in their current limits, allowing optimization of external components for different loads: the max1795, max1796, and max1797 have current limits of 0.25a, 0.5a, and 1a, respectively. all devices are packaged in a compact 8-pin µmax® package that is only 1.09mm tall and half the size of an 8-pin so.
关键特性
>95% efficiency true-shutdown circuitry output disconnects from input in shutdown no external schottky diode needed 25µa quiescent supply current low-noise antiringing feature lbi/lbo comparator enabled in shutdown 2µa shutdown current 8-pin µmax package 应用/使用
pda与掌上电脑
便携式数字音频播放器
便携式终端
无线手机
典型工作电路
特斯拉将召回的Model Y用OTA升级来解决
人大金仓荣获中电标协“优秀会员单位”
上海移动携手华为举行首款支持CA的商用手机华为Mate 40 Pro发布会
SMT贴片无铅助焊剂的六点要求
小米正式成立了美图AI美学试验室小米首款美图手机即将到来
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