MAX1709 4A, Low-Noise, High-Fr
max1709 4a, low-noise, high-frequency, step-up dc-dc converter
max1709 description
the max1709 sets a new standard of space savings for high-power, step-up dc-dc conversion. it delivers up to 20w at a fixed (3.3v or 5v) or adjustable (2.5v to 5.5v) output, using an on-chip power mosfet from a +0.7v to +5v supply.
fixed-frequency pwm operation ensures that the switching noise spectrum is constrained to the 600khz fundamental and its harmonics, allowing easy postfiltering for noise reduction. external clock synchronization capability allows for even tighter noise spectrum control. quiescent power consumption is less than 1mw to extend operating time in battery-powered systems.
two control inputs (ona, active-low onb) allow simple push-on, push-off control through a single momentary pushbutton switch, as well as conventional on/off logic control. the max1709 also features programmable soft-start and current limit for design flexibility and optimum performance with batteries.
the max1709 is supplied in both a high-power tssop package, which allows a 10arms switch current and a 4a output, and a narrow so package, which supplies a 2.4a output with a switch rated at 6arms. although the narrow so device has a lower rms switch rating, it has the same peak switch current rating as the tssop device, and so can supply 4a loads intermittently. if loads of 2a or less are required, refer to the max1708.
max1709 key features
on-chip 10a power mosfet 5v, 4a output from a 3.3v input fixed 3.3v or 5v output voltage or adjustable (2.5v to 5.5v) input voltage range down to 0.7v low power consumption 1mw quiescent power 1µa current in shutdown mode low-noise, constant frequency operation (600khz) synchronizable switching frequency (350khz to 1000khz) max1709 applications/uses
3.6v or 5v rf pas in communications handsets
local 2.5v to 3.3v or 5v conversion
local 3.3v to 5v conversion
routers, servers, workstations, card racks
max1709 typical operating circuit
max1709 pdf,max1709 datasheet
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MAX1709 4A, Low-Noise, High-Fr
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max1709 description
the max1709 sets a new standard of space savings for high-power, step-up dc-dc conversion. it delivers up to 20w at a fixed (3.3v or 5v) or adjustable (2.5v to 5.5v) output, using an on-chip power mosfet from a +0.7v to +5v supply.
fixed-frequency pwm operation ensures that the switching noise spectrum is constrained to the 600khz fundamental and its harmonics, allowing easy postfiltering for noise reduction. external clock synchronization capability allows for even tighter noise spectrum control. quiescent power consumption is less than 1mw to extend operating time in battery-powered systems.
two control inputs (ona, active-low onb) allow simple push-on, push-off control through a single momentary pushbutton switch, as well as conventional on/off logic control. the max1709 also features programmable soft-start and current limit for design flexibility and optimum performance with batteries.
the max1709 is supplied in both a high-power tssop package, which allows a 10arms switch current and a 4a output, and a narrow so package, which supplies a 2.4a output with a switch rated at 6arms. although the narrow so device has a lower rms switch rating, it has the same peak switch current rating as the tssop device, and so can supply 4a loads intermittently. if loads of 2a or less are required, refer to the max1708.
max1709 key features
on-chip 10a power mosfet 5v, 4a output from a 3.3v input fixed 3.3v or 5v output voltage or adjustable (2.5v to 5.5v) input voltage range down to 0.7v low power consumption 1mw quiescent power 1µa current in shutdown mode low-noise, constant frequency operation (600khz) synchronizable switching frequency (350khz to 1000khz) max1709 applications/uses
3.6v or 5v rf pas in communications handsets
local 2.5v to 3.3v or 5v conversion
local 3.3v to 5v conversion
routers, servers, workstations, card racks
max1709 typical operating circuit
max1709 pdf,max1709 datasheet
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自动重合闸的作用及基本要求
UTMI接口规范介绍
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台北电脑展亮点汇总：未来机箱亮相 VR淡出电脑展
MAX1709 4A, Low-Noise, High-Fr
一个变压器就能对交流进行升降压，对直流也可以吗？
Airflite将为旋转式V-200无人机及其变型提供支持人员和维护及工程服务
矩阵的主要功能
磁致伸缩位移传感器综合知识
边缘计算如何助力军事智能化
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华为mate10什么时候上市?华为mate10最新消息:为华为mate10让路,华为mate9再次降价,华为mate10能否乘风破浪再次崛起
AI推动家庭安全发展 但安全、隐私等问题也将不断出现
2014年科技浪潮势头猛 或将改善电池现状
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