Manufacturer Part Number
LD2981CU33TR
Manufacturer
STMicroelectronics
Introduction
The LD2981CU33TR from STMicroelectronics is a low drop-out (LDO) linear voltage regulator, designed for power management in a wide range of electronic devices. It ensures stable output with minimal input-to-output voltage difference.
Product Features and Performance
Low Dropout Voltage: 0.375V @ 100mA
Fixed 3.3V Output Voltage
Output Current up to 100mA
Low Quiescent Current: 150 µA
High PSRR: 63dB @ 1kHz
Over Current and Over Temperature Protection
Product Advantages
High Efficiency in Low Voltage Applications
Minimal Power Loss due to Low Dropout
Suitable for Battery-Operated Devices due to Low Quiescent Current
Enhanced Power Supply Rejection improves performance in noisy environments
Robust Protection Features ensure long-term reliability
Key Technical Parameters
Voltage Input (Max): 16V
Voltage Output (Min/Fixed): 3.3V
Voltage Dropout (Max): 0.375V @ 100mA
Current Output: 100mA
Current Quiescent (Iq): 150 µA
Current Supply (Max): 2.6 mA
PSRR: 63dB @ 1kHz
Operating Temperature: -40°C to 125°C
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Ensures Stable Operation under Various Temperature Conditions
Compatibility
Surface Mount TO-243AA Package
Compatible with a Wide Range of Electronic Circuits due to its Fixed Output
Application Areas
Consumer Electronics
Portable and Battery-powered Devices
Microcontroller Power Supply
Wireless Communication Equipment
Product Lifecycle
Status: Active
Not Nearing Discontinuation
Availability of Replacements or Upgrades not Specified
Several Key Reasons to Choose This Product
High Efficiency for Power-Sensitive Applications
Low Dropout Voltage Minimizes Power Loss
Ideal for Use in Portable Devices due to Low Quiescent Current
Offers excellent noise reduction for sensitive circuits
Provides reliable operation through built-in protection features
LD2981CM33STMicroelectronics