TPS73733DCQRG4 - Texas Instruments

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