Manufacturer Part Number
LF33CDT-TR
Manufacturer
stmicroelectronics
Introduction
The LF33CDT-TR is a linear low drop out (LDO) voltage regulator designed for power management, delivering a fixed 3.3V output from an input up to 16V.
Product Features and Performance
Fixed output voltage of 3.3V
Maximum input voltage of 16V
Output current up to 500mA
Low dropout voltage of 0.7V at 500mA load
Very low quiescent current of 1 mA
High power supply rejection ratio: 80dB at 120Hz, decreasing to 65dB at 10kHz
Product Advantages
High efficiency due to low dropout voltage
Suitable for battery-powered devices due to low quiescent current
Robust performance with 80dB PSRR at low frequencies
Key Technical Parameters
Voltage - Input (Max): 16V
Voltage - Output (Min/Fixed): 3.3V
Current - Output: 500mA
Voltage Dropout (Max): 0.7V @ 500mA
Current - Quiescent (Iq): 1 mA
Power Supply Rejection Ratio (PSRR): 80dB ~ 65dB (120Hz ~ 10kHz)
Operating Temperature Range: -40°C ~ 125°C
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Compatibility
Packaging in Tape & Reel (TR) for automated assembly
Surface mount in TO-252-3, DPAK package
Application Areas
Consumer Electronics
Telecommunications
Computing devices
Power management applications
Product Lifecycle
Status: Active
Not nearing discontinuation with stable supply and support
Several Key Reasons to Choose This Product
Optimized for low-power operations with minimal quiescent current
Suitable for high-reliability applications given its wide operating temperature range
Offers robust protection features ensuring long-term reliability under various conditions
Ideal for diverse applications due to flexible input voltage range and strong PSRR performance
Ease of integration in automated production lines with Tape & Reel packaging