The TLE4264G is a voltage regulator from Infineon Technologies, a global semiconductor manufacturer. This particular device is part of their Low Dropout Regulator (LDO) series. Now, let's break down the specifics of this device, as you requested.
Pin Function Specifications and Circuit Principles
Package Type: The TLE4264G comes in a TO-263-5 package (also known as D2PAK-5), which is a surface-mount type. It has 5 pins in total. Pinout Description (5 Pins): Pin Number Pin Name Pin Function Description Pin 1 Vout Output voltage pin. Delivers a stable regulated voltage. Pin 2 GND Ground pin. Connects to the system ground to provide a reference. Pin 3 IN Input voltage pin. Receives input voltage to be regulated. Pin 4 EN Enable pin. Activates or deactivates the output voltage. Low level (0V) disables the regulator, high level (typically 3V to 5V) enables the output. Pin 5 Vout Another Output voltage pin. For better current handling, this pin provides the same output voltage as Pin 1. Function of Each Pin:Pin 1 (Vout): This is where the regulated output voltage is available. The TLE4264G regulates the input voltage down to a stable output, which can typically be 5V or 3.3V, depending on the version.
Pin 2 (GND): This pin is essential for completing the circuit. It provides a return path for current and sets the reference voltage for the device.
Pin 3 (IN): The input voltage is fed into this pin. It is important that the voltage is within the specified range for the regulator to work correctly (typically 6V to 40V).
Pin 4 (EN): This pin controls whether the voltage regulator is active or not. A low signal on this pin turns off the regulator, preventing the device from drawing current.
Pin 5 (Vout): This is an additional output pin, offering the same output as Pin 1, but used to distribute current over multiple paths, improving load handling capacity.
Circuit Principle:The TLE4264G works as a Low Dropout Regulator (LDO). It uses a differential amplifier to compare the output voltage (Vout) to an internal reference. If the output voltage deviates from the reference, the pass transistor adjusts to regulate the voltage, ensuring a stable output. This type of regulator is efficient because it can maintain regulation even when the input voltage is very close to the output voltage, minimizing power loss.
FAQ (20 Common Questions):
Q: What is the typical input voltage range for TLE4264G? A: The typical input voltage range for the TLE4264G is from 6V to 40V. Q: Can the TLE4264G provide multiple output voltages? A: No, the TLE4264G is designed to provide a single output voltage, either 5V or 3.3V, depending on the version used. Q: How can I enable the regulator? A: The regulator is enabled by applying a high-level signal (typically 3V to 5V) to the EN (Enable) pin. Q: How much current can the TLE4264G provide? A: The TLE4264G can provide a maximum output current of 1.5A. Q: What happens if the EN pin is grounded? A: If the EN pin is grounded (low level), the TLE4264G will be disabled and no output voltage will be generated. Q: What is the output voltage accuracy of TLE4264G? A: The output voltage accuracy is typically ±2% at full load. Q: Can I use TLE4264G for power-sensitive applications? A: Yes, TLE4264G is a Low Dropout Regulator, making it highly efficient for applications where power efficiency is critical. Q: What are the thermal protection features of TLE4264G? A: The TLE4264G includes thermal shutdown protection to prevent damage in case of overheating. Q: Is the TLE4264G suitable for automotive applications? A: Yes, it is designed for automotive use and can handle automotive voltage spikes.Q: Does the TLE4264G require external components?
A: Yes, external capacitor s are recommended for stability and performance.Q: What type of capacitors should be used with the TLE4264G?
A: Low ESR (Equivalent Series Resistance ) capacitors are recommended on both input and output pins.Q: What is the maximum dropout voltage for TLE4264G?
A: The maximum dropout voltage is typically 0.4V at 1A output current.Q: Can TLE4264G be used in high-noise environments?
A: Yes, TLE4264G has good noise rejection capabilities, making it suitable for sensitive applications.Q: How is the TLE4264G protected against overcurrent?
A: The TLE4264G features current-limiting protection to prevent damage during overload conditions.Q: Is the TLE4264G reverse polarity protected?
A: No, reverse polarity protection is not included. Ensure correct polarity when connecting the input.Q: What is the quiescent current of TLE4264G?
A: The typical quiescent current is around 40 µA when the regulator is enabled.Q: Does the TLE4264G have short-circuit protection?
A: Yes, the TLE4264G includes short-circuit protection, automatically limiting the current to safe levels.Q: Can the TLE4264G be used with batteries?
A: Yes, the TLE4264G is well-suited for use in battery-powered designs due to its low dropout voltage and low quiescent current.Q: What is the maximum junction temperature of TLE4264G?
A: The maximum junction temperature is 150°C.Q: How should I mount the TLE4264G on a PCB?
A: Mount the TLE4264G on a PCB with proper grounding and use recommended external components for best performance.This covers the specifications and essential information about the TLE4264G. Let me know if you'd like more details!
