LP3907SQ-JXQX

Overview

The LP3907SQ-JXQX is a Texas Instruments PMIC featuring two synchronous buck converters and two LDOs. It operates with an input voltage range of 2.8V to 5.5V and includes an I2C interface for configuration. The device integrates sequencing control and supports output currents up to 1A for the buck regulators. It is housed in a 24-WQFN package and certified to AEC-Q100 standards for automotive reliability.

Feature Summary

• Integrates dual synchronous step-down converters and dual low-dropout linear regulators within a single compact package.
• Features programmable I2C interface for dynamic adjustment of output voltages and operational parameters.
• Includes internal sequencing logic to manage power-up and power-down transitions across multiple outputs.

Applications

• Advanced application processors requiring multi-rail power distribution
• Field Programmable Gate Array (FPGA) core and I/O power supplies
• Automotive infotainment systems

Procurement Notes

Verify the specific suffix JXQX against the official datasheet to confirm pinout and thermal pad specifications. Ensure the component meets AEC-Q100 grade requirements if used in automotive environments. Cross-reference the manufacturer part number with current Texas Instruments documentation to avoid obsolete variants.

Selection Notes

Select this component when a compact solution is needed for powering complex digital loads like processors or FPGAs. The integrated I2C control allows for system optimization without external resistors. Verify that the required output currents align with the 1A buck and 300mA LDO capabilities defined in the technical specifications.

Part Context

This component belongs to the LP3907 family of power management integrated circuits from Texas Instruments, which succeeded National Semiconductor's product line. The series is designed for high-efficiency power conversion in portable and automotive electronics. The SQ designation indicates automotive qualification under AEC-Q100 standards.

Replacement Considerations

LP3907SQ-PJXIX/NOPB

FAQ

Does the LP3907SQ-JXQX support I2C communication?

Yes, the device features an I2C interface for configuring output voltages and monitoring status.

What is the maximum switching frequency of the buck converters?

The buck converters operate at a fixed switching frequency of 2.1MHz.