Manufacturer Part Number
TPS78633KTTR
Manufacturer
Texas Instruments
Introduction
The TPS78633KTTR is a low-dropout regulator from Texas Instruments designed for power management, particularly within the low dropout linear regulator category.
Product Features and Performance
Fixed 3.3V output voltage
5A current output capability
Low dropout voltage of 0.51V at 1.5A
Excellent power supply rejection ratio: 59dB to 32dB from 100Hz to 100kHz
Ultra-low quiescent current of 385 µA
Enable feature for power management
Thermal and current overload protection
Reverse polarity and under-voltage lockout for safety
Wide operating temperature range from -40°C to 125°C
Product Advantages
High-efficiency with low dropout voltage
Stable operation with fixed output configuration
Robust protection features ensure longevity and reliability
Suitable for battery-powered devices due to ultra-low quiescent current
High PSRR enhances performance in noisy environments
Key Technical Parameters
Voltage - Input (Max): 5.5V
Voltage - Output (Min/Fixed): 3.3V
Voltage Dropout (Max): 0.51V @ 1.5A
Current - Output: 1.5A
Current - Quiescent (Iq): 385 µA
PSRR: 59dB to 32dB (100Hz to 100kHz)
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Reverse Polarity Protection
Under Voltage Lockout (UVLO)
Compatibility
Compatible with a wide range of electronic applications
Surface mount packaging: TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Application Areas
Consumer electronics
Battery-powered devices
Microprocessor/microcontroller power supply
Communication equipment
Product Lifecycle
Product Status: Active
Not nearing discontinuation
Replacements or upgrades are widely available
Several Key Reasons to Choose This Product
Ideal for applications requiring a fixed 3.3V output with up to 1.5A current
Low dropout ensures efficiency in a compact form factor
High PSRR advantageous for noisy power supply conditions
Wide operating temperature range suitable for various environments
Robust safety features provide confidence in long-term reliability
Ultra-low Iq minimizes power loss in standby modes, promoting energy conservation
Easily integrated into system designs due to the common surface mount package (TO-263)
