LP873347RHDT

Overview

The LP873347RHDT is a Texas Instruments PMIC in a VQFN-28 package. It integrates two high-current buck converters and two LDOs. The buck outputs support up to 3 A with adjustable voltage from 0.7 V to 3.36 V. The LDO outputs provide up to 300 mA with ranges from 0.8 V to 3.3 V. Operating input voltage spans 2.5 V to 5.5 V. Switching frequency is 2 MHz. The device operates between -40°C and +125°C.

Feature Summary

• Integrates dual high-current synchronous buck converters and dual low-dropout linear regulators within a single compact package.
• Features integrated power stage sequencing control for efficient multi-rail startup and shutdown management.

Applications

• Industrial appliances
• Test and measurement equipment

Procurement Notes

Verify the specific suffix RHDT against the manufacturer datasheet to confirm the tape-and-reel packaging configuration. Ensure the ordering part number matches the required output current ratings and voltage ranges. Confirm RoHS compliance status and moisture sensitivity level requirements before finalizing procurement orders.

Selection Notes

Select this component when a design requires four regulated rails from a single IC footprint. The dual 3-A buck converters are suitable for powering digital logic cores, while the LDOs serve analog or noise-sensitive subsystems. Verify that the 2 MHz switching frequency aligns with EMI constraints and inductor size limitations.

Part Context

This device belongs to the LP8733xx family of specialized power management ICs. It consolidates multiple regulator functions into one solution to reduce board space. The integration supports complex system power architectures commonly found in portable and industrial electronics requiring efficient power distribution.

Replacement Considerations

LP873345RHDT