Manufacturer: Texas Instruments

Key Specifications

• Package: SOT23-6
• Channels: 3
• Supply Voltage: 2.7V to 5.5V
• Sequencing Delay: To be verified
• Output Type: Open-drain
• Operating Temperature: -40 to 125°C
• Interface: None (standalone)

The LM3880MFX-1AE-NOPB from Texas Instruments is a simple and effective power supply sequencer designed to manage the power-up and power-down order of multiple voltage rails in electronic systems. This device provides three open-drain output flags that enable or disable downstream power modules or LDOs in a controlled sequence, ensuring proper system initialization and preventing potential latch-up or damage due to incorrect power sequencing.

Key Features

• Three-channel sequencing with programmable delay times (exact delay values to be verified)
• Wide supply voltage range: 2.7V to 5.5V
• Low quiescent current for power-sensitive applications
• Open-drain outputs for flexible interface with various power controllers
• Compact SOT23-6 package for space-constrained designs
• Operating temperature range: -40°C to 125°C

Applications

• FPGA, DSP, and processor power sequencing
• Multi-rail power supply systems
• Industrial control equipment
• Networking and telecommunications hardware

Selection Guidance

When selecting the LM3880MFX-1AE-NOPB, verify the required sequencing delay and output polarity for your specific application. The device is available in a fixed timing configuration; refer to the datasheet for detailed timing diagrams and recommended external components. For adjustable timing options, consider other variants in the LM3880 family.