Manufacturer Part Number
TPS73733DCQRG4
Manufacturer
Texas Instruments
Introduction
The TPS73733DCQRG4 is a fixed output, low-dropout (LDO) linear regulator designed for power-sensitive applications, offering stable operation with a low voltage dropout and robust protection features.
Product Features and Performance
Single output LDO regulator
Output configuration is positive
Fixed output type of 3.3V
Voltage dropout maximum of 0.5V at 1A load
Capable of delivering up to 1A current output
Low quiescent current of 400 µA
Maximum supply current of 1.3 mA
Excellent Power Supply Rejection Ratio (PSRR) ranging from 58dB to 37dB across frequencies from 100Hz to 10kHz
Designed with enable control features
Product Advantages
High efficiency due to low dropout voltage
Ideal for low power consumption applications due to low quiescent current
Robust against power irregularities and fluctuations with good PSRR
Key Technical Parameters
Voltage Input (Max): 5.5V
Voltage Output (Min/Fixed): 3.3V
Current Output: 1A
Voltage Dropout (Max): 0.5V at 1A
Current Quiescent (Iq): 400 µA
PSRR: 58dB ~ 37dB (100Hz ~ 10kHz)
Quality and Safety Features
Features overcurrent and over-temperature protection
Reverse polarity protection
Operating temperature range of -40°C to 125°C
Compatibility
Compatible with applications requiring a 3.3V fixed output under varying input conditions up to 5.5V
Surface mount package compatible with SOT-223-6 footprint
Application Areas
Suitable for sensitive electronic devices such as microcontrollers and communication devices
Ideal for power management tasks in both commercial and industrial electronics
Product Lifecycle
Currently discontinued at Digi-Key
Consider looking for replacements or upgrades as necessary
Several Key Reasons to Choose This Product
Stable low dropout performance ideal for tight power supplies
Low quiescent current enables use in power-sensitive applications
Strong protection features ensure long-term reliability
High PSRR enhances device performance under noisy conditions
Built by Texas Instruments, a leader in semiconductor solutions
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