Description

The LM2937IMP-5.0/NOPB is a linear voltage regulator used to regulate voltage and is capable of supplying up to 500mA of load current. It is a PNP transistor-based regulator used as a positive voltage regulator, which provides low dropout voltage characteristics. The minimum input to output voltage differential required for the output to remain in regulation is typically 0.5V (1V guaranteed maximum over the full operating temperature range). It has special circuitry to minimize the quiescent current, which is typically only 10mA with a full 500mA load current when the input to output voltage differential is greater than 3V.

Specifications and features

• Product Category: Linear Voltage Regulators
• Operating Temperature Range: -40°C to +125°C
• Output Current: Excess of 500mA
• Output Tolerance: 5% under all operating conditions
• Dropout Voltage: 0.5V at full rated load current (typical)
• Output Capacitor ESR Range: Up to 3Ω
• Protection Features:
  • Reverse battery protection
  • Internal short circuit and thermal overload protection
  • 60V input transient protection
  • Mirror image insertion protection
  • Built-in ON/OFF control function

Application Scenarios

The LM2937IMP-5.0/NOPB is typically used in electronic circuits that require a precise and stable voltage source. It is widely used in battery-powered systems, mobile devices, portable instrumentation, control systems, audio and video circuits, and in other electronic systems that require power management functions.

Comparison

• Has a wide output capacitor ESR range of up to 3Ω, which makes it suitable for numerous applications
• Provides internal short circuit and thermal overload protection
• Provides reverse battery protection and 60V input transient protection, making it highly reliable
• Includes a built-in ON/OFF control function

• The minimum input to output voltage differential required for the output to remain in regulation is typically 0.5V (1V guaranteed maximum over the full operating temperature range), which may limit its usefulness in certain low voltage applications.