LTC2923IDE#TRPBF

Power Supply Controllers, Monitors Overview

The LTC2923IDE#TRPBF is a power supply sequencer and supervisor manufactured by Analog Devices Inc. It operates within an input voltage range of 1.8V to 5.5V and draws a typical quiescent current of 40µA. The device features three open-drain outputs capable of sinking up to 10mA each, with adjustable thresholds for monitoring power rails. It supports flexible sequencing configurations including simultaneous, sequential, and windowed supervision modes. The component is housed in a 16-lead SSOP package and is rated for operation across an industrial temperature range of -40°C to +85°C.

Power Supply Controllers, Monitors Feature Summary

• Provides precise control over power-up and power-down sequences for multiple voltage rails
• Features adjustable threshold voltages for independent monitoring of supply lines
• Supports configurable output states to manage enable pins of downstream regulators

Power Supply Controllers, Monitors Applications

• Power sequencing for complex digital systems such as FPGAs and microprocessors
• Supervision of multi-rail power architectures in embedded controllers
• Control of linear and switching regulator enable signals during system startup

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix and tape-and-reel packaging details against the manufacturer's latest documentation before ordering. Confirm that the intended application voltage ranges align with the specified 1.8V to 5.5V operational limits. Ensure compatibility with the target PCB footprint for the SSOP-16 package. Check for any recent lifecycle notices or obsolescence warnings from Analog Devices regarding this part number.

Power Supply Controllers, Monitors Selection Notes

Select this component when precise timing control between multiple power domains is required. It is suitable for designs needing independent threshold adjustment for fault detection. Consider its low quiescent current for battery-sensitive applications. Evaluate the need for its specific output drive capabilities versus simpler supervisor alternatives if sequencing complexity is minimal.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC2923 family of power supply supervisors designed for managing complex power-up/down sequences. It complements other PMIC components by handling the coordination logic between different voltage rails. The series is commonly used in conjunction with DC/DC converters and LDOs to ensure safe initialization of digital loads.

Power Supply Controllers, Monitors Replacement Considerations

Direct replacements may include other Analog Devices sequencers like the LTC2953 or LTC2954, provided they support similar voltage ranges and pinout compatibility. Verify functional equivalence regarding output configuration and threshold adjustability before substituting.