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AN78L12ME1

AN78L12ME1

Product Overview

Category

AN78L12ME1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

  • Input Voltage Range: 14V to 35V
  • Output Voltage: 12V
  • Maximum Output Current: 100mA
  • Low Dropout Voltage: 2V (typical)
  • Operating Temperature Range: -40°C to +125°C
  • Package Type: TO-252-3 (DPAK)
  • RoHS Compliant

Package and Quantity

AN78L12ME1 is packaged in a TO-252-3 (DPAK) package. It is available in quantities of [insert quantity].

Specifications

  • Input Voltage Range: 14V to 35V
  • Output Voltage: 12V
  • Output Current: 100mA (maximum)
  • Dropout Voltage: 2V (typical)
  • Line Regulation: ±0.5% (typical)
  • Load Regulation: ±0.5% (typical)
  • Quiescent Current: 4mA (typical)
  • Ripple Rejection Ratio: 60dB (typical)
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The AN78L12ME1 has three pins: 1. Pin 1: Input Voltage (VIN) 2. Pin 2: Ground (GND) 3. Pin 3: Output Voltage (VOUT)

Functional Features

  • Low dropout voltage ensures efficient regulation even with low input-output voltage differentials.
  • Built-in overcurrent protection safeguards the circuit from excessive current flow.
  • Thermal shutdown protection prevents damage due to overheating.
  • Short-circuit protection ensures the device remains safe during fault conditions.

Advantages

  • Compact package size allows for easy integration into various electronic circuits.
  • Wide operating temperature range makes it suitable for use in extreme environments.
  • Low dropout voltage minimizes power dissipation and improves efficiency.
  • Overcurrent, thermal shutdown, and short-circuit protection enhance reliability.

Disadvantages

  • Limited output current capacity may restrict its use in high-power applications.
  • Input voltage range may not be suitable for all voltage regulation requirements.

Working Principles

AN78L12ME1 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly to maintain a stable output voltage.

Application Field Plans

AN78L12ME1 finds applications in various electronic devices and systems, including: - Power supplies - Battery chargers - Audio amplifiers - Industrial control systems - Automotive electronics

Alternative Models

Other alternative models that can be considered as replacements for AN78L12ME1 include: - LM7812 - MC7812 - UA7812 - L78L12

These models offer similar voltage regulation capabilities and can be used interchangeably depending on specific requirements.

In conclusion, AN78L12ME1 is a voltage regulator with a 12V output voltage, low dropout voltage, and various protection features. It is commonly used in electronic circuits requiring stable voltage regulation.

技術ソリューションにおける AN78L12ME1 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of AN78L12ME1 in technical solutions:

Q1: What is AN78L12ME1? A1: AN78L12ME1 is a voltage regulator IC (integrated circuit) that provides a fixed output voltage of +12V.

Q2: What is the input voltage range for AN78L12ME1? A2: The input voltage range for AN78L12ME1 is typically between +14V to +35V.

Q3: What is the maximum output current of AN78L12ME1? A3: The maximum output current of AN78L12ME1 is 100mA.

Q4: Can AN78L12ME1 be used to regulate negative voltages? A4: No, AN78L12ME1 is designed to regulate positive voltages only.

Q5: Is AN78L12ME1 suitable for low-power applications? A5: Yes, AN78L12ME1 is commonly used in low-power applications where a regulated +12V supply is required.

Q6: Does AN78L12ME1 require any external components for operation? A6: Yes, AN78L12ME1 requires input and output capacitors for stability. A bypass capacitor is also recommended.

Q7: Can AN78L12ME1 handle high temperatures? A7: AN78L12ME1 has a maximum operating temperature of +125°C, making it suitable for many industrial applications.

Q8: What is the typical dropout voltage of AN78L12ME1? A8: The typical dropout voltage of AN78L12ME1 is around 2V, meaning the input voltage must be at least 2V higher than the desired output voltage.

Q9: Can AN78L12ME1 be used in battery-powered applications? A9: Yes, AN78L12ME1 can be used in battery-powered applications as long as the input voltage remains within the specified range.

Q10: Is AN78L12ME1 available in different package types? A10: Yes, AN78L12ME1 is available in various package types, including TO-92 and SOT-89, providing flexibility for different PCB layouts and space constraints.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.