LP3907SQX-VRZX/NOPB

Overview

The LP3907SQX-VRZX/NOPB is a Texas Instruments PMIC featuring two synchronous buck converters and two LDOs. The buck regulators deliver up to 1A and 600mA respectively, operating at a fixed 2.1MHz switching frequency. The dual LDOs provide 300mA output current each. It includes an I2C interface for configuration, supports input voltages from 2.8V to 5.5V, and operates within a -40°C to +85°C temperature range in a 24-WQFN package.

Feature Summary

• Integrates two high-efficiency synchronous step-down DC/DC converters with independent enable controls.
• Includes two low-noise LDO regulators suitable for sensitive analog and RF circuitry.
• Features an I2C serial interface for dynamic voltage adjustment and status monitoring.
• Provides comprehensive protection against over-current, thermal overload, and short circuits.

Applications

• Advanced application processors power distribution
• FPGA core and I/O voltage regulation
• Portable electronic devices requiring multi-rail power

Procurement Notes

Verify the specific suffix VRZX corresponds to the required tape-and-reel packaging quantity and pin assignment. Confirm that the SQ designation meets automotive or industrial qualification standards if applicable. Ensure the I2C address settings align with system bus requirements before finalizing procurement orders.

Selection Notes

Select this component when a compact solution combining switching efficiency and LDO noise performance is required. It is appropriate for designs needing four distinct regulated rails from a single IC. Consider the 2.1MHz frequency for smaller passive components compared to lower-frequency alternatives.

Part Context

This device belongs to the LP3907 family of integrated power management ICs. It consolidates multiple voltage regulation functions into a single small footprint, reducing bill-of-materials count and board space compared to discrete regulator solutions.

Replacement Considerations

LP3907SQ-PFX6W/NOPB

FAQ

What is the maximum switching frequency of the buck converters?

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

Does the device support dynamic voltage scaling?

Yes, the I2C interface allows for dynamic adjustment of output voltages for both the buck converters and LDOs.