LM3812MX-1.0
Product Overview
Category
The LM3812MX-1.0 belongs to the category of voltage regulators.
Use
It is used to regulate voltage in electronic circuits, ensuring a stable output voltage regardless of variations in input voltage or load conditions.
Characteristics
- Input Voltage Range: 4V to 40V
- Output Voltage: 1.0V
- Output Current: 500mA
- Low Dropout Voltage: 0.5V at 500mA
- Low Quiescent Current: 75µA
- Thermal Shutdown Protection
- SOT-223 Package
Package
The LM3812MX-1.0 is available in a SOT-223 package.
Packaging/Quantity
It is typically packaged in reels of 2500 units.
Specifications
- Input Voltage Range: 4V to 40V
- Output Voltage: 1.0V
- Output Current: 500mA
- Dropout Voltage: 0.5V at 500mA
- Quiescent Current: 75µA
- Operating Temperature Range: -40°C to 125°C
- Thermal Resistance (Junction to Case): 50°C/W
Detailed Pin Configuration
The LM3812MX-1.0 has the following pin configuration: 1. VIN: Input Voltage 2. GND: Ground 3. VOUT: Output Voltage
Functional Features
- Voltage Regulation: Provides a stable output voltage.
- Low Dropout Voltage: Ensures efficient operation even with low input voltages.
- Thermal Shutdown Protection: Protects the device from overheating.
Advantages and Disadvantages
Advantages
- Wide input voltage range
- Low dropout voltage
- Thermal shutdown protection
Disadvantages
- Limited output current compared to some other models
- SOT-223 package may not be suitable for all applications
Working Principles
The LM3812MX-1.0 utilizes a feedback control mechanism to maintain a constant output voltage. When the input voltage or load changes, the regulator adjusts the internal circuitry to ensure a steady output voltage.
Detailed Application Field Plans
The LM3812MX-1.0 is commonly used in battery-powered devices, portable electronics, and automotive applications where a stable low-voltage power supply is required.
Detailed and Complete Alternative Models
Some alternative models to the LM3812MX-1.0 include the LM1117, LM2940, and LM317, which offer similar voltage regulation capabilities with varying specifications and package options.
In conclusion, the LM3812MX-1.0 is a versatile voltage regulator with a wide input voltage range, low dropout voltage, and thermal shutdown protection, making it suitable for various low-power applications.
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What is the LM3812MX-1.0?
- The LM3812MX-1.0 is a step-down switching regulator designed to provide a regulated output voltage from an unregulated input voltage source.
What is the input voltage range for the LM3812MX-1.0?
- The LM3812MX-1.0 can accept an input voltage range of 4.5V to 42V.
What is the output voltage of the LM3812MX-1.0?
- The LM3812MX-1.0 has a fixed output voltage of 1.0V.
What is the maximum output current of the LM3812MX-1.0?
- The LM3812MX-1.0 can deliver a maximum output current of 3A.
What are the typical applications for the LM3812MX-1.0?
- Typical applications include powering microcontrollers, FPGAs, and other digital ICs in various electronic devices.
What are the key features of the LM3812MX-1.0?
- The LM3812MX-1.0 features include high efficiency, thermal shutdown, overcurrent protection, and adjustable frequency operation.
How do I set the output voltage of the LM3812MX-1.0?
- The output voltage of the LM3812MX-1.0 is fixed at 1.0V and cannot be adjusted.
What are the recommended input and output capacitors for the LM3812MX-1.0?
- It is recommended to use low ESR ceramic capacitors for both the input and output of the LM3812MX-1.0.
What is the operating temperature range of the LM3812MX-1.0?
- The LM3812MX-1.0 can operate within a temperature range of -40°C to 125°C.
Is there a reference design available for the LM3812MX-1.0?
- Yes, Texas Instruments provides reference designs and application notes for the LM3812MX-1.0 to assist with its implementation in technical solutions.