下图为LDO典型应用电路图 输入电压Vi施加到LDO芯片输入后,被降压成输出电压VO驱动负载(电灯泡),这里的输出电压VO(Output Voltage)是LDO的一个重要参数,一般工程师在进行选型时首先考虑的就是输出电压。 LDO有固定输出电压(Fixed)和可调输出电压(Adjustable)两种。固定输出电压LDO使用比较方便,经过厂家精密调整后的输出电...
1,最大输出电流Imax(Maximum Output Current)。LDO类似于一个恒压源,在输出电压不变的情况下,根据负载情况来调整电流大小。LDO必须能在最不利的工作条件下给负载提供足够的电流。要注意所选择LDO负载电流的瞬态特性,以用于那些更 5、高的瞬时峰值电流场合,需有足够余量。用电设备的功率不同,要求稳压器输出的最大...
Check Distributor Inventory-LGA/CASON/CH ARRY SO NO LD1600m5.53-Adj1.2µ4.5m45mCurrent Limit, Current Monitor, High PSRR, LDO, Output Current Limit, Output Current Monitor, Output Current Regulation, OV/UV Monitoring, Overcurrent Limiting, Overcurrent Protection, Overtemperature Protection, Over...
矽源特ME1117 series are highly accurate, low noise, LDO Voltage Regulators that are capable of providing an output current that is in excess of 1.0A with a maximum dropout voltage of 1.3V at 1.0A. This series contains six fixed output voltages of 1.2 V, 1.5V,1.8 V, 2.5 V, 3.3 V, a...
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/941558/tps7a49-regarding-current-limit-feature-during-ldo-output-short-circuit 器件型号:TPS7A49 你(们)好。 我们使用 TPS7A49 LDO 将15V DC 转换为5V DC (电流要求:20mA)。 我们的15V ...
logic compatible ON/OFF switched input. When disabled, power consumption drops to nearly zero. Other key features include reverse battery protection, current limit, and thermal shutdown. The SPX3819 includes a reference bypass pin for optimal low noise output performance. With its very low output ...
A method and circuits to limit the output load current of a current driven LDO voltage regulator are disclosed. The current through a second pass transistor, being in parallel to a first pass transistor and being a fraction of the current through the first pass transistor is measured and ...
Adjustable Output Voltage Option Standby Current：3.3mA（TPY.）High Ripple Rejection：60dB@1KHz（ME1117A33）Line Regulation: 0.1％（TYP.）Temperature Stability≤0.5% Current Limit（1.3A）Thermal Shutdown Protection（160℃）矽源特ChipSourceTek-ME1117 Typical Application:Consumer and Industrial ...
1117LDO Output Capacitor Requirements. The 1117LDO is a low-dropout linear regulator that provides a stable output voltage with low noise and ripple. The output voltage is determined by the value of the feedback resistors, and the output current is limited by the internal current limit circuit....
A programmable current limit circuit for LDO 0 引言 随着便携式电子产品的流行,低压差线性稳压器(LDO)和开关型电压调整器得到越来越广泛的应用。开关型电压调整器的效率很高,通常可达到90%以上[1]。但是,由于开关型调整器需要用到电感,导致它难以集成、成本增加,还引入了电磁干扰(EMI),而且开关型调整器的输出纹...