LP3907TLX-JJCP/NOPB

Overview

The LP3907TLX-JJCP/NOPB is a power management integrated circuit (PMIC) manufactured by Texas Instruments, formerly National Semiconductor. It integrates two high-current synchronous step-down DC-DC converters and two low-dropout (LDO) linear regulators within a single package. The device features an I2C-compatible interface for configuration and monitoring. It operates with an input voltage range of 2.8V to 5.5V and supports switching frequencies up to 2.1MHz. The component is housed in a 25-pin ultra-small micro leadless package (uSMD) or WQFN variant, designed for space-constrained applications.

Feature Summary

• Integrates dual high-current buck converters and dual LDOs for comprehensive power rail generation
• Features I2C-compatible digital interface for programmable output control and status monitoring
• Supports wide input voltage range suitable for single-cell lithium-ion battery systems
• Includes advanced protection mechanisms such as thermal shutdown and current limiting

Applications

• Advanced application processors power sequencing
• Field-programmable gate array (FPGA) core and I/O supply regulation
• Portable consumer electronics requiring multi-rail power management
• Industrial control modules with compact form factor requirements

Procurement Notes

Verify the manufacturer designation carefully, as Texas Instruments acquired National Semiconductor. Ensure the suffix matches the specific package type and temperature rating required for your design. Confirm RoHS compliance status through official datasheets before procurement. Cross-reference the ordering part number with the distributor's catalog to avoid pinout mismatches between similar LP3907 variants.

Selection Notes

Select this component when a single IC solution is needed to replace multiple discrete regulators. Consider the thermal performance of the uSMD/WQFN package relative to your board layout. Verify that the I2C address and register map align with your system controller. Evaluate the quiescent current specifications against your standby power requirements.

Part Context

This part belongs to the LP3907 family of mixed-signal PMICs. It is functionally similar to other LP3907 variants but distinguished by its specific package code and temperature grade. The transition from National Semiconductor to Texas Instruments means documentation may reference either brand name interchangeably.

Replacement Considerations

Check for LP3907SQ-JJXP/NOPB or LP3907TLX-JJXP/NOPB for potential pin-compatible alternatives. Verify if the LP3906 series offers a simplified alternative if fewer outputs are sufficient. Always confirm electrical parameters and package dimensions before substitution.