Allicdata Part #: | LM337IMPTR-ND |
Manufacturer Part#: |
LM337IMP |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG LIN NEG ADJ 1A SOT223-4 |
More Detail: | Linear Voltage Regulator IC Negative Adjustable 1 ... |
DataSheet: | LM337IMP Datasheet/PDF |
Quantity: | 2000 |
Specifications
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Not For New Designs |
Output Configuration: | Negative |
Output Type: | Adjustable |
Number of Regulators: | 1 |
Voltage - Input (Max): | -50V |
Voltage - Output (Min/Fixed): | -1.2V |
Voltage - Output (Max): | -37V |
Voltage Dropout (Max): | -- |
Current - Output: | 1A |
PSRR: | 60dB (120Hz) |
Control Features: | -- |
Protection Features: | Over Temperature, Short Circuit |
Operating Temperature: | -40°C ~ 125°C |
Mounting Type: | Surface Mount |
Package / Case: | TO-261-4, TO-261AA |
Supplier Device Package: | SOT-223-4 |
Base Part Number: | LM337 |
Description
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LM337IMP Application Field and Working Principle
PMIC (Power Management Integrated Circuit) is an electronic device that can control, monitor and attempt to optimize the power consumption of digital systems and other electrical systems. It integrates multiple power management functions, such as voltage regulator, AC/DC converter, system clock, etc., into a single integrated circuit. Voltage regulator usually consists of two circuits. The input voltage can be higher or lower than the output voltage by using this two circuits. And LM337IMP, as one type of voltage regulator, is widely used in many electronic devices and applications.Application Field
As a voltage regulator, LM337IMP can be used in a wide range of applications and for a variety of purposes. It can be used in the electronics of motor vehicles, including gasoline engine, diesel engine, and electric motor. In industry, LM337IMP is often used as a reference source or buffer in high-precision instrumentation, computer hardware system and low-temperature monitoring equipment. In medical equipment, such as patient monitoring systems, it is employed as a voltage regulator and power management system. In the process of power conversion, it can also be used as an actuator or switching systems in order to achieve accurate stable output current and voltage.Working Principle
The working principle of LM337IMP voltage regulator is based on a negative feedback system. It is composed of several components, such as differential amplifier, error amplifier, voltage reference and current pump. The voltage reference, which is generated from the junction of the two transistors, is the input of the voltage regulator. The output of the regulator is determined by the AM (adjustment pin)settings. The differential amplifier is used to comparator the voltage reference and the output current. When the output voltage is lower than the reference voltage, the differential amplifier will output a positive voltage and then the error amplifier amplifies this positive voltage to increase the output voltage and reduce the input voltage. On the contrary, if the output voltage is higher than the reference voltage, the different amplifier will output a negative voltage and then the error amplifier will reduce the output voltage.Advantage and Disadvantage
The advantage of using LM337IMP voltage regulator is that it can provide a stable output voltage that can handle high power, with a low cost and low power consumption. It also provides the device with better temperature stability. The disadvantage is that it has relatively low power efficiency and can only provide a single output voltage. Moreover, the output voltage of LM337IMP is not adjustable, so once the output voltage is fixed, it cannot be adjusted. Furthermore, it cannot prevent the voltage from exceeding the limit and damaging the connected electronic device.Conclusion
In conclusion, LM337IMP is a popular voltage regulator and it has a wide range of applications and features. It is easy to use and provides stable and low power consumption. However, it has two disadvantages, including low power efficiency and non-adjustable output voltage. Therefore, it is important to choose a suitable type of voltage regulator according to specific device or system requirements.The specific data is subject to PDF, and the above content is for reference
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