LM2936MM-5.0
Compact 5V low dropout voltage regulators with ultra-low quiescent current
Manufacturer： ['national-semiconductor', 'rochester', 'ti']
series introduction
# Introduction to the LM2936MM - 5.0 Product Series
## 1. Overview
The LM2936MM - 5.0 is a highly reliable and efficient low - dropout (LDO) voltage regulator belonging to a well - regarded product series. LDO regulators are crucial components in electronic circuits as they provide a stable output voltage even when the input voltage fluctuates or when there are changes in the load current. The "LM2936MM - 5.0" is specifically designed to deliver a fixed output voltage of 5.0V, making it suitable for a wide range of applications that require a stable 5V power supply.
## 2. Key Features
### 2.1 Low Dropout Voltage
One of the most significant features of the LM2936MM - 5.0 is its low dropout voltage. Dropout voltage is the minimum difference between the input voltage and the output voltage required for the regulator to maintain a stable output. In the case of the LM2936MM - 5.0, it can operate with a very low dropout, which means it can function effectively even when the input voltage is only slightly higher than the 5V output voltage. This is particularly useful in battery - powered applications where the battery voltage decreases over time. For example, if a battery starts at 6V and gradually discharges, the LM2936MM - 5.0 can still provide a stable 5V output until the battery voltage drops close to 5V plus the dropout voltage.
### 2.2 High Accuracy
The regulator offers high output voltage accuracy. It can maintain the output voltage within a tight tolerance range, typically ±2% over a wide range of input voltages and load currents. This high accuracy is essential for applications such as microcontrollers, sensors, and other sensitive electronic components that require a precise 5V power supply to operate correctly. Any deviation from the specified output voltage could lead to errors in the operation of these components, affecting the overall performance of the system.
### 2.3 Low Quiescent Current
The LM2936MM - 5.0 has a low quiescent current, which is the current consumed by the regulator itself when there is no load or a very light load. A low quiescent current is beneficial for battery - powered devices as it helps to extend the battery life. In standby or low - power modes, the regulator consumes minimal power, ensuring that the battery energy is conserved and the device can operate for longer periods without frequent battery replacements.
### 2.4 Thermal Shutdown and Current Limiting
To protect the device from damage due to overheating or excessive current, the LM2936MM - 5.0 is equipped with thermal shutdown and current - limiting features. The thermal shutdown mechanism automatically turns off the regulator when the temperature exceeds a certain threshold, preventing the device from being damaged by excessive heat. The current - limiting feature restricts the output current to a safe level, protecting the regulator and the connected load from damage in case of a short - circuit or other abnormal conditions.
## 3. Package and Pin Configuration
The LM2936MM - 5.0 is available in a small - sized surface - mount package, which is suitable for printed circuit board (PCB) designs where space is limited. The package is designed to provide good thermal performance, allowing the regulator to dissipate heat effectively.
The pin configuration of the LM2936MM - 5.0 is straightforward and easy to use. It typically has three pins: an input pin (VIN), an output pin (VOUT), and a ground pin (GND). The input pin is connected to the power source, the output pin provides the regulated 5V voltage, and the ground pin is connected
Images for reference
8-TSSOP 8-MSOP
8-MSOP
Image Preview