Manufacturer Part Number
TPS71721DCKR
Manufacturer
Texas Instruments
Introduction
TPS71721DCKR is a low dropout (LDO) regulator designed for stable and reliable power management in a variety of applications.
Product Features and Performance
Stable Voltage Regulation with Fixed Output of 2.1V
Low Dropout: Maximum of 0.3V at 150mA load
Maximum Input Voltage: 6.5V
Output Current Capacity: 150mA
Low Quiescent Current: 80 µA
Power Supply Rejection Ratio (PSRR): 70dB to 45dB from 100Hz to 1MHz
Control Features Include Enable Option
Product Advantages
Enhanced power efficiency due to low dropout characteristics
High reliability with built-in protection features including Over Current, Over Temperature, Reverse Polarity, and Under Voltage Lockout (UVLO)
Small form factor suitable for compact designs (5-TSSOP, SC-70-5, SOT-353 package)
Key Technical Parameters
Voltage Input (Max): 6.5V
Voltage Output (Min/Fixed): 2.1V
Voltage Dropout (Max): 0.3V @ 150mA
Current Output: 150mA
Current Quiescent (Iq): 80 µA
Current Supply (Max): 100 µA
PSRR: 70dB ~ 45dB (100Hz ~ 1MHz)
Operating Temperature: -40°C ~ 125°C
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Reverse Polarity Protection
Under Voltage Lockout (UVLO)
Compatibility
Compatible with other circuits requiring a fixed 2.1V supply with minimal battery/energy consumption
Application Areas
Mobile Devices
Portable Electronics
Health and Wellness Devices
Industrial Equipment
Product Lifecycle
Currently active and not nearing discontinuation
Availability of replacements or upgrades within Texas Instruments portfolio
Several Key Reasons to Choose This Product
High efficiency and reliability suitable for battery-powered applications
Compact package (SC-70-5) suitable for space-constrained designs
Broad operational temperature range making it suitable for industrial applications
High PSRR providing good noise rejection at various frequencies
Robust protection features ensuring long-term reliability