
Allicdata Part #: | LP5951MFX-2.5-ND |
Manufacturer Part#: |
LP5951MFX-2.5 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG LINEAR 2.5V 150MA SOT23-5 |
More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Current - Output: | 150mA |
Base Part Number: | LP5951 |
Supplier Device Package: | SOT-23-5 |
Package / Case: | SC-74A, SOT-753 |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 125°C |
Protection Features: | Over Current, Over Temperature, Short Circuit |
Control Features: | Enable |
PSRR: | 60dB ~ 50dB (100Hz ~ 10kHz) |
Current - Supply (Max): | 70µA |
Current - Quiescent (Iq): | 55µA |
Series: | -- |
Voltage Dropout (Max): | 0.35V @ 150mA |
Voltage - Output (Max): | -- |
Voltage - Output (Min/Fixed): | 2.5V |
Voltage - Input (Max): | 5.5V |
Number of Regulators: | 1 |
Output Type: | Fixed |
Output Configuration: | Positive |
Part Status: | Obsolete |
Packaging: | Tape & Reel (TR) |
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:LP5951MFX-2.5 is a Linear Voltage Regulator from Power Management Integrated Circuit (PMIC) and it is used for providing a specific voltage output for several different applications. It is able to withstand a maximum output current of 1.5A. The LP5951MFX-2.5 features an integrated high-voltage (HV) and high-side switch. This switch enables the device to control switching behavior across multiple supplies. It also helps in providing an efficient switch mode power supply. The device has a wide operating temperature range from -40C to +100C.
The LP5951MFX-2.5 has an integrated low-dropout regulator that requires a low input voltage. This regulator is able to provide an output voltage range which varies from a preset voltage to 15V in increments of 0.1V by using a single external resistor. The LP5951MFX-2.5 also features integrated protection features to help protect the device from over-current, over-temperature and under-voltage conditions.
The LP5951MFX-2.5 has multiple applications in the fields of consumer electronics, automotive, and industrial systems. It is used in devices such as mobile phones, LCD displays, audio systems, GPS receivers, digital cameras, and others. It is also used for providing precision voltage for systems such as solar panel inverters, automotive ECUs, and others that require an input voltage regulation.
LP5951MFX-2.5 works on the principle of PWM (Pulse Width Modulation) control. It uses two transistors, one of which is connected across the output power supply and the other is placed across the primary power source. When the device is activated, the PWM control mode is enabled and a series of short pulses are generated at the switching frequency of the device. These pulses are then fed to the gate of the transistor connected to the output of the power supply.
The pulse width of these pulses vary depending on the amplitude of the output given. When the voltage reaches an upper or lower limit, the pulse width is changed accordingly to maintain the desired output. This helps to regulate the output voltage no matter what changes occur in the input supply. The LP5951MFX-2.5 also has a soft start feature which helps in reducing the in-rush current when the device is activated.
Apart from the linear regulator, the LP5951MFX-2.5 also has a quasi-resonant (QR) mode of operation. This mode is used to increase the efficiency of the device when the output current is low. In this mode, the pulse width is gradually increased or decreased depending on the output voltage. This helps to minimize losses and to reduce EMI.
Overall, the LP5951MFX-2.5 is a highly integrated and efficient regulator for automotive, industrial, and other applications that require an input voltage regulation. It offers multiple protection features including over-current, over-temperature, and under-voltage protection to ensure that the device is safe and reliable. With its PWM and QR modes of operation, the LP5951MFX-2.5 helps to reduce losses while providing a stable output supply under diverse conditions.
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