Manufacturer Part Number
LP3893ES-1.2
Manufacturer
Texas Instruments
Introduction
Low voltage, high current LDO regulator designed for power-sensitive applications
Product Features and Performance
Single LDO voltage regulator with fixed output
High PSRR (Power Supply Rejection Ratio) of 80dB at 120Hz
Low dropout voltage of 1V @ 1A load
Low quiescent current of 30 µA
Output current capability of 3A
Supports enable function for power management
Thermal and over-current protection
Short circuit protection
Under Voltage Lockout (UVLO) for safety
Product Advantages
High efficiency due to low dropout
Stable operation with a range of ceramic and tantalum capacitors
Low power consumption
Robust protection features
Suitable for noise-sensitive applications due to high PSRR
Key Technical Parameters
Voltage - Input (Max): 5.5V
Voltage - Output (Min/Fixed): 1.2V
Current - Output: 3A
Current - Quiescent (Iq): 30 µA
PSRR: 80dB ~ 65dB (120Hz ~ 1kHz)
Operating Temperature: -40°C ~ 125°C
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Short Circuit Protection
Under Voltage Lockout (UVLO)
Compatibility
Compatible with a variety of capacitors for output stability
Suitable for surface mount technology with TO-263 (DDPAK-5) package
Application Areas
Consumer electronics
Telecommunications
Computer systems
Battery-powered devices
Product Lifecycle
Last Time Buy status
Replacement options and upgrades may be available (check with manufacturer)
Several Key Reasons to Choose This Product
High current capability suitable for demanding applications
Low dropout enhances efficiency in low voltage operations
Minimal design complexity due to fixed output configuration
Long-term reliability with extensive protection features
High PSRR ideal for RF and precision analog circuits
Texas Instruments' reputation for quality and support