Manufacturer Part Number
TPS78228DDCR
Manufacturer
Texas Instruments
Introduction
The TPS78228DDCR is a low-dropout (LDO) linear regulator designed for Power Management, particularly in applications requiring a fixed output from a higher input voltage.
Product Features and Performance
Fixed output voltage of 2.8V
Maximum input voltage of 5.5V
Low dropout voltage of 0.25V at 150mA load
Output current up to 150mA
Ultra-low quiescent current of 1.3 µA
Excellent power supply rejection ratio (PSRR): 40dB to 15dB from 10Hz to 1kHz
Enable control feature for improved power management
Protection features include over-current, over-temperature, and reverse polarity
Operating temperature range from -40°C to 125°C
Product Advantages
High efficiency due to low quiescent current and low dropout voltage
Robust protection features ensure reliability under adverse conditions
Small package size (SOT-23-5 Thin, TSOT-23-5) suitable for compact designs
Key Technical Parameters
Input Voltage (Max): 5.5V
Output Voltage (Min/Fixed): 2.8V
Dropout Voltage (Max): 0.25V @ 150mA
Output Current: 150mA
Quiescent Current (Iq): 1.3 µA
Supply Current (Max): 8 µA
PSRR: 40dB ~ 15dB (10Hz ~ 1kHz)
Quality and Safety Features
Over-current protection
Over-temperature protection
Reverse polarity protection
Compatibility
Compatible with various applications requiring a stable 2.8V supply
Application Areas
Consumer Electronics
Portable Devices
IoT Devices
Wireless Communication Equipments
Product Lifecycle
Currently active product
Not nearing discontinuation and replacements or upgrades are available if necessary
Several Key Reasons to Choose This Product
Extremely low quiescent current enhances battery life in portable applications
Broad operating temperature range suitable for harsh environments
Small form factor for use in space-constrained applications
Reliable protection features ensure long-term durability
Backed by Texas Instruments' reputation for quality power management solutions