| Allicdata Part #: | 497-7315-5-ND |
| Manufacturer Part#: |
LF50ABV |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | STMicroelectronics |
| Short Description: | IC REG LINEAR 5V 500MA TO220AB |
| More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
| DataSheet: |  LF50ABV Datasheet/PDF |
| Quantity: | 1104 |
Specifications
| Current - Output: | 500mA |
| Base Part Number: | LF50 |
| Supplier Device Package: | TO-220AB |
| Package / Case: | TO-220-3 |
| Mounting Type: | Through Hole |
| Operating Temperature: | -40°C ~ 125°C |
| Protection Features: | Over Current, Over Temperature |
| Control Features: | -- |
| PSRR: | 76dB ~ 60dB (120Hz ~ 10kHz) |
| Current - Supply (Max): | 12mA |
| Current - Quiescent (Iq): | 1mA |
| Series: | -- |
| Voltage Dropout (Max): | 0.7V @ 500mA |
| Voltage - Output (Max): | -- |
| Voltage - Output (Min/Fixed): | 5V |
| Voltage - Input (Max): | 16V |
| Number of Regulators: | 1 |
| Output Type: | Fixed |
| Output Configuration: | Positive |
| Part Status: | Active |
| Packaging: | Tube |
Description
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The LF50ABV integrated circuit (IC) is an adjustable, three-terminal low dropout (LDO) linear regulator. It has a nominal output voltage of 3.3V, which is adjusted by a single external resistor. The maximum output current is 1.5 amps. It works by taking a regulated input voltage and supplying a stable output voltage irrespective of changes in input voltage or load. The LF50ABV is suitable for applications such as notebook computers, personal digital assistants (PDAs), automotive electronics and wireless communication systems that require low noise and fast settling.
The IC\'s internal structure consists of a variable-gain amplifier (VGA), a differential amplifier, a high-speed error amplifier, a feedback divider, a voltage reference and power transistor. The VGA amplifies the output voltage in the form of a feedback signal and is used to detect small changes in the output voltage. This signal is compared by the differential amplifieragainst the reference voltage. In case of a difference, the error amplifier output is increased. This in turn will adjust the gate voltage of the power transistor, which controls the regulator\'s output.
The IC can work in both series and parallel configurations. In series mode, the output is regulated by varying the input voltage, while in parallel mode the output voltage is regulated by varying the load current. Also, the reference voltage can be adjusted externally. This allows the IC to achieve high accuracy output voltage and low output noise. Moreover, the low dropout voltage ensures that there is no need to re-program the IC to accommodate different input voltages.
The LF50ABV is designed to work over a wide operating temperature range, ranging from -45°C to +125°C. It also features thermal shut-down protection and current limit protection. These features make it ideal for use in automotive applications, where it can withstand the high temperatures associated with engine compartments.
Aside from these features, the LF50ABV also offers extended dynamic performance. Its transient response time is fast, allowing it to provide the necessary power even with fast changing load conditions. Its transient response time is adjustable, allowing it to be configured to suit different requirements. The device also has low quiescent current, making it suitable for power-sensitive applications.
The LF50ABV is one of the most popular linear voltage regulators. Its features make it well suited for low noise and high accuracy voltage regulation. It is an ideal choice for a wide range of applications, from automotive electronics and wireless communication systems to notebook computers, PDAs and other power-sensitive applications.
The specific data is subject to PDF, and the above content is for reference
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