5 thoughts on “What does Drop Out Voltage in LDO mean?”
Gwendolyn
Dropout Voltage in LDO refers to the difference between the minimum input voltage of VOUT output in SPEC. (Such as -1 ~ 1%) under a load condition. Dropout definition is slightly different. The Low Dropout Regulator in LDO is a low -pressure differential stabilizer. LDO (low voltage drop) regulator of the positive output voltage usually uses a power transistor (also known as the transmission device) as the PNP. This transistor allows saturation, so the regulator can have a very low voltage voltage, usually about 200mv; compared with, the voltage drop of the traditional linear regulator of the traditional linear regulator of NPN composite power transistor is about 2V. The negative output LDO uses NPN as its transmission device, and its operating mode is similar to the PNP device of the positive output LDO.
The expansion information: LDO is Low Dropout Regulator, which is a low -pressure differential stabilizer. This is compared to traditional linear stabilizers The traditional linear regulator, such as the chip of the 78xx series, requires that the input voltage is at least 2V ~ 3V higher than the output voltage, otherwise it will not work properly. In some cases, such conditions are obviously too harsh, such as 5V to 3.3V, and the pressure difference between input and output is only 1.7V. Obviously this is the working conditions that do not meet the traditional linear stabilizer. In response to this situation, chip manufacturers have developed the voltage conversion chip of LDO class. LDO is a linear regulator that uses a transistor or field effect tube (FET) running in its linear region. It minus the excess voltage from the application input voltage and generates adjusted output voltage. The so -called voltage voltage refers to the minimum value of the input voltage required to maintain the output voltage within 100mV up and down its rated value. Reference materials Source: Baidu Encyclopedia-Scholes
The Dropout Voltage of LDO in a load refers to the difference between the minimum input voltage of VOUT output in the SPEC. (Such as -1 ~ 1%). Of course, the Dropout definition of different companies is slightly different.
Dropout Voltage in LDO refers to the difference between the minimum input voltage of VOUT output in SPEC. (Such as -1 ~ 1%) under a load condition, which is the voltage drop. Of course, the products of different companies are slightly different to Dropout. LDO LOW Dropout Regulator is a low -pressure differential stabilizer. LDO is a linear regulator. Linear regulator is a transistor or FET run by running in its linear area to minimize the excess voltage from the input voltage of the application and generate adjusted output voltage. The so -called voltage voltage refers to the minimum value of the input voltage required to maintain the output voltage within 100MV within its rated value. LDO (low voltage drop) regulator of the positive output voltage usually uses a power transistor (also known as the transmission device) as the PNP. This transistor allows saturation, so the regulator can have a very low voltage voltage, usually about 200mv; compared with, the voltage drop of the traditional linear regulator of the traditional linear regulator of NPN composite power transistor is about 2V. The negative output LDO uses NPN as its transmission device, and its operating mode is similar to the PNP device of the positive output LDO.
Dropout voltage is the input-to-output voltage at which the circuitrnceases to regulate against further rections in input voltage; this point occursrnwhen the input voltage the output voltage.建议去看下TI的PDF,有Very professional analysis Introduction The following is the link web page link
Dropout Voltage in LDO refers to the difference between the minimum input voltage of VOUT output in SPEC. (Such as -1 ~ 1%) under a load condition. Dropout definition is slightly different. The Low Dropout Regulator in LDO is a low -pressure differential stabilizer.
LDO (low voltage drop) regulator of the positive output voltage usually uses a power transistor (also known as the transmission device) as the PNP. This transistor allows saturation, so the regulator can have a very low voltage voltage, usually about 200mv; compared with, the voltage drop of the traditional linear regulator of the traditional linear regulator of NPN composite power transistor is about 2V.
The negative output LDO uses NPN as its transmission device, and its operating mode is similar to the PNP device of the positive output LDO.
The expansion information:
LDO is Low Dropout Regulator, which is a low -pressure differential stabilizer. This is compared to traditional linear stabilizers The traditional linear regulator, such as the chip of the 78xx series, requires that the input voltage is at least 2V ~ 3V higher than the output voltage, otherwise it will not work properly.
In some cases, such conditions are obviously too harsh, such as 5V to 3.3V, and the pressure difference between input and output is only 1.7V. Obviously this is the working conditions that do not meet the traditional linear stabilizer. In response to this situation, chip manufacturers have developed the voltage conversion chip of LDO class.
LDO is a linear regulator that uses a transistor or field effect tube (FET) running in its linear region. It minus the excess voltage from the application input voltage and generates adjusted output voltage.
The so -called voltage voltage refers to the minimum value of the input voltage required to maintain the output voltage within 100mV up and down its rated value.
Reference materials Source: Baidu Encyclopedia-Scholes
The Dropout Voltage of LDO in a load refers to the difference between the minimum input voltage of VOUT output in the SPEC. (Such as -1 ~ 1%). Of course, the Dropout definition of different companies is slightly different.
LDO is Low Dropout Regulator, which is a low -voltage differential stabilizer,
Drop Out Voltage
Dropout Voltage in LDO refers to the difference between the minimum input voltage of VOUT output in SPEC. (Such as -1 ~ 1%) under a load condition, which is the voltage drop. Of course, the products of different companies are slightly different to Dropout.
LDO LOW Dropout Regulator is a low -pressure differential stabilizer.
LDO is a linear regulator. Linear regulator is a transistor or FET run by running in its linear area to minimize the excess voltage from the input voltage of the application and generate adjusted output voltage. The so -called voltage voltage refers to the minimum value of the input voltage required to maintain the output voltage within 100MV within its rated value.
LDO (low voltage drop) regulator of the positive output voltage usually uses a power transistor (also known as the transmission device) as the PNP. This transistor allows saturation, so the regulator can have a very low voltage voltage, usually about 200mv; compared with, the voltage drop of the traditional linear regulator of the traditional linear regulator of NPN composite power transistor is about 2V. The negative output LDO uses NPN as its transmission device, and its operating mode is similar to the PNP device of the positive output LDO.
Dropout voltage is the input-to-output voltage at which the circuitrnceases to regulate against further rections in input voltage; this point occursrnwhen the input voltage the output voltage.建议去看下TI的PDF,有Very professional analysis Introduction
The following is the link web page link