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发表于 2013-8-28 19:03
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本帖最后由 yfham 于 2013-8-28 19:16 编辑
maxwang71 发表于 2013-8-28 18:55 
软控 站的地方有点大了 个人感觉有点喧宾夺主 电源用贴片 太对不起2片9018了
那不是一般的贴片 noise是低于9UV的ADP151 , 9018 AV更是用的797运放输出电源(前面有预稳压IC LM1117), 请把这个贴子从头到脚看完。
另:软控 站的地方只有1/5不到! 这个版本是全屏软件控的 没有其他开关 全电容屏操控的!
Ultralow Noise, 200 mA,
CMOS Linear Regulator
ADP151
FEATURES
Ultralow noise: 9 μV rms
No noise bypass capacitor required
Stable with 1 μF ceramic input and output capacitors
Maximum output current: 200 mA
Input voltage range: 2.2 V to 5.5 V
Low quiescent current
IGND = 10 μA with 0 load
IGND = 265 μA with 200 mA load
Low shutdown current: <1 μA
Low dropout voltage: 140 mV at 200 mA load
Initial accuracy: ±1%
Accuracy over line, load, and temperature: ±2.5%
16 fixed output voltage options: 1.1 V to 3.3 V
PSRR performance of 70 dB at 10 kHz
Current-limit and thermal overload protection
Logic controlled enable
Internal pull-down resistor on EN input
5-lead TSOT package
6-lead LFCSP package
4-ball, 0.4 mm pitch WLCSP
APPLICATIONS
RF, VCO, and PLL power supplies
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
Post dc-to-dc regulation
Portable medical devices |
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