Manufacturer Part Number
LD39020DTPU18R
Manufacturer
STMicroelectronics
Introduction
The LD39020DTPU18R is a Power Management Integrated Circuit (PMIC), specifically a Low Drop Out (LDO) regulator intended for stable voltage supply.
Product Features and Performance
Voltage Regulators - Linear, Low Drop Out type
Tape & Reel packaging for automated assembly
Single Positive Fixed Output
Lower dropout voltage of 0.35V at 200mA
High PSRR of 80dB at 1kHz reducing supply noise
Low Quiescent Current of 40 µA for power efficiency
Control feature includes Enable for on-demand operation
Protection for Over Current, Over Temperature and Soft Start for reliable operation
Operates in a wide temperature range from -40°C to 125°C (TJ)
Product Advantages
High Power Supply Rejection Ratio (PSRR) for cleaner output
Ultra-low dropout for better efficiency in low input voltage applications
Low quiescent current enhances battery life in portable applications
Thermal and over-current protection increases reliability and longevity
Small 4-XDFN package saves PCB space
Key Technical Parameters
Single Regulator design
Input Voltage up to 5.5V
Fixed Output Voltage at 1.8V
Output Current Capacity of 200mA
Dropout voltage of 0.35V at 200mA
Current - Quiescent (Iq) at 40 µA
Power Supply Rejection Ratio spans 80dB to 55dB from 1kHz to 100kHz
Surface Mount, 4-XDFN Exposed Pad Package
Package / Case size 4-DFN (1x1)
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Soft Start Functionality
Compatibility
Surface Mount Technology compatible
4-XDFN Exposed Pad for thermal efficiency
Suitable for devices requiring a fixed output of 1.8V
Application Areas
Battery-powered devices
Portable and handheld electronics
Consumer electronics
Industrial control systems
Healthcare and medical devices
Product Lifecycle
Active status, not nearing discontinuation
Replacement and upgrades should be available as this is a staple component in power management
Several Key Reasons to Choose This Product
High reliability with built-in protection features
Energy-efficient due to low quiescent current and dropout voltage
Suitable for noise-sensitive applications due to high PSRR rating
Versatile and can operate across a wide temperature range
Compact size ideal for space-constrained applications
Active product with support and future availability from STMicroelectronics
