增加LD(的 开环增益有助于提高 线性调整率 (该段为概略翻译)个人博客http:/ed nchi |npll- VfMFigure 7. TPS76933 Output Voltage With Respect to the Input Voltages7负载调整率负载调整率是衡量LDO在 负载电流变动的情况下,输岀电压保持恒定的一 种能力。被定 义为Load regulation;Mq4-fuVReulcam5Q100ftf...
The SPX3819 is a positive voltage regulator with a low dropout voltage and low noise output. In addition, this device offers a very low ground current of 800μA at 100mA output. The SPX3819 has an initial tolerance of less than 1% max and a logic compatible ON/OFF switched input. When...
24V input 5V OUTPUT LDO Other Parts Discussed in Thread:LM309,LM25010,LM22672,TPS5410,TPS7A8101,TPS74801 急需24V输入,5V输出的LDO,电流600mA-1A LM2940, LM340-N, LM309等等 楼主的应用压差比较大,用LDO损耗也大,建议可以考虑开关电源 True向下 tao smith11 年多前回复TI 管理员 Mastermind6920...
Inputvoltage:4.75V~40V Outputvoltage:1.8V~5.7V Outputaccuracy:<±2% Outputcurrent:150mA(Typ.) Upto300mA@VIN=7V,VOUT=5V, PW6206B50HVpackage PSRR:60dB@100Hz Dropoutvoltage:600mV@IOUT=100mA Quiescentcurrent:4.2μA@VIN=12V(Typ.) ESDHBM:8KV Recommendcapacitor:10μF APPLICATIONS Smartelectric...
MOSFETmakethisregulatorhighlypowerefficient.●AdjustableOutputupto12V Theinternalcompensationnetworkalsominimizes●InternalFixedPWMfrequency:650KHz asmuchas6externalcomponentcounts.The●Internal0.18Ω,2A,16VPowerMOSFET non-invertinginputoferroramplifierconnectstoa0.6V●ShutdownCurrent:0.1μA ...
LDO芯片还应注意一点是接地电流(GND Pin Current)IGND这指的是静态电流,是LDO内部所消耗的电流。 在计算LDO功耗时,P应包括静态功耗和动态功耗,动态功耗PD = (Vin - Vout)*I,静态功耗PS = Vin *IGND(此电流是内部消耗的电流) 在设计电源时,应将电源摆放在一个区域内,对于多层板,其相邻层最好也不要走高速...
Note 2: Full load current (IFL) is defined as 3.0A. Note 3: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value. Note 4: VIN = VOUT (NOMINAL) +1V. For example, use VIN = 4.3V for a 3.3V regulator. Employ ...
4.6A and 3A output current Load Regulation: 0.05% Typical capability, respectively. Design has been optimized for low Trimmed Current Limit voltage applications where transient response and mini- On-Chip Thermal Limiting mum input voltage are critical. Similar to the LT1083/4/5 Standard 3-Pin Pow...
The voltage of an inductor is proportional to the differential current of the current running through it. An example of the current waveform is shown in Figure 1.Figure 1. The output current of a buck converter.A switching converter also produces voltage spurs at its switching frequency and ...
The output current range spans from ~0A to a maximum current IOUTmax, which is determined by the maximum temperature rating of the LDO, the power dissipation capabilities of its package and the maximum input voltage of the LDO (IOUTmax=150mA for TPS7A4901). The output voltage range spans ...