STMicroelectronics LD39100PU12R
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- LD39100PU12R
- STMicroelectronics
- IC REG LINEAR 1.2V 1A 6DFN
- PMIC - Voltage Regulators - Linear
- LD39100PU12R Datasheet
- 6-VDFN Exposed Pad
- -Reel®
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Lead free / RoHS Compliant - 3125
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What is LD39100PU12R
STMicroelectronics Part Number LD39100PU12R（PMIC - Voltage Regulators - Linear）, developed and manufactured by STMicroelectronics, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
LD39100PU12R is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
LD39100PU12R Specifications
- Part NumberLD39100PU12R
- CategoryPMIC - Voltage Regulators - Linear
- ManufacturerSTMicroelectronics
- DescriptionIC REG LINEAR 1.2V 1A 6DFN
- Package-Reel®
- Series-
- Operating Temperature-40°C ~ 125°C
- Mounting TypeSurface Mount
- Package / Case6-VDFN Exposed Pad
- Supplier Device Package6-DFN (3x3)
- Output TypeFixed
- Voltage - Output (Min/Fixed)1.2V
- Voltage - Output (Max)-
- Current - Output1A
- Output ConfigurationPositive
- Control FeaturesEnable, Power Good
- Voltage - Input (Max)5.5V
- Number of Regulators1
- Voltage Dropout (Max)0.4V @ 1A
- Current - Quiescent (Iq)50 µA
- Current - Supply (Max)300 µA
- PSRR65dB ~ 62dB (1kHz ~ 10kHz)
- Protection FeaturesOver Current, Over Temperature, Short Circuit
Application of LD39100PU12R
LD39100PU12R Datasheet
LD39100PU12R Datasheet , -Reel®,-40°C ~ 125°C,Surface Mount,6-VDFN Exposed Pad,6-DFN (3x3),Fixed,1.2V,1A,Positive,Enable, Power Good,5.5V,1,0.4V @ 1A,50 µA,300 µA,65dB ~ 62dB (1kHz ~ 10kHz),Over Current, Over Temperature, Short
LD39100PU12R Classification
PMIC - Voltage Regulators - Linear
FAQ about PMIC - Voltage Regulators - Linear
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1. What are the disadvantages of linear regulators?
The disadvantage of linear regulators is that they are not efficient and can only be used in voltage reduction applications. The efficiency of a linear regulator depends on the ratio of output voltage to input voltage: turbidity = Vo: Vi. For example, for ordinary linear regulators, when the input voltage is 5V and the output voltage is 2.5V, the efficiency is only 50%. For ordinary linear regulators, about 50% of the electrical energy is converted into "heat" and lost, which is also the main reason why ordinary linear regulators are prone to heat when working. For LDO, due to its low voltage difference, the efficiency is much higher. For example, when the input voltage is 3.3V and the output voltage is 2.5V, its efficiency can reach 76%. Therefore, in LCD color TVs, in order to improve the utilization rate of electrical energy, ordinary linear regulators are used less, while LDOs are used more.
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2. Which is better, switching power supply or linear regulator?
Switching power supply and linear regulator each have their advantages and disadvantages, and choosing which one is better depends on the specific application requirements.
The main advantages of switching power supply include:
High efficiency: The conversion efficiency of switching power supply can reach 90%~95%, which is much higher than the 30% or so of linear regulator.
Small size and light weight: Due to the high efficiency and high-efficiency transformer of switching power supply, large heat sink can be omitted, and high-frequency transformer replaces power frequency transformer, greatly reducing volume and weight.
Wide voltage regulation range: The output voltage of switching power supply can compensate for the change of input voltage by adjusting the duty cycle to ensure stable output voltage.
Various circuit forms: Designers can design switching power supplies that meet the needs according to different application scenarios.
However, switching power supplies also have so -
3. Can a linear regulator be up?
Linear regulators cannot be boost.
The main function of a linear regulator is to stabilize the output voltage, protecting the electrical equipment from high or unstable voltage effects. It realizes a stable output voltage by adjusting the gap between the output voltage and the input voltage, but this process is limited to lowering the voltage, not including the voltage. The working principle of a linear regulator is to regulate the voltage by converting excess voltage into heat loss, thereby realizing the voltage regulation. This feature determines that it does not have the voltage function.
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