Manufacturer Part Number
LP3990MF-1.8
Manufacturer
Texas Instruments
Introduction
Low Drop Out (LDO) voltage regulator for power management applications
Product Features and Performance
Positive, fixed output configuration
Single regulator channel
Suitable for applications requiring up to 150mA output current
Quiet operation with only 80 µA quiescent current
Low dropout voltage of 0.2V at 150mA load
Good power supply rejection ratio (PSRR) of 55dB to 35dB between 1kHz and 10kHz
Enable pin for power-saving control features
Over Temperature and Short Circuit protection for safety and durability
Designed for operation in a wide temperature range from -40°C to 85°C
Product Advantages
High-efficiency due to low dropout voltage
Compact SC-74A, SOT-753 package suitable for space-constrained applications
Robust protection features enhance product reliability
Key Technical Parameters
Voltage - Input (Max): 6V
Voltage - Output (Min/Fixed): 1.8V
Current - Output: 150mA
Current - Quiescent (Iq): 80 µA
Current - Supply (Max): 120 µA
Voltage Dropout (Max): 0.2V @ 150mA
PSRR: 55dB ~ 35dB (1kHz ~ 10kHz)
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Over Temperature protection
Short Circuit protection
Compatibility
Surface Mount compatible
Package / Case: SC-74A, SOT-753
Supplier Device Package: SOT-23-5
Application Areas
Suitable for battery-powered devices
Ideal for mobile phones, PDAs, and other handheld applications
Product Lifecycle
Obsolete status
Potential need to seek replacement or upgrade options
Several Key Reasons to Choose This Product
Optimal power solution for portable electronics
Minimizes battery drain with low quiescent current
Provides clean and stable voltage with good PSRR
Enhanced reliability through built-in protection features
Suitable for high-performance applications in a wide temperature range
LP3990MF-1.8/NOPBTexas Instruments
LP3988ITLX-2.6NS