LP87334FRHDR

Overview

The LP87334FRHDR is a Texas Instruments PMIC featuring dual high-current buck converters and two LDOs in a VQFN-28 package. It supports an input voltage range of 2.8 V to 5.5 V. The buck outputs provide up to 3 A each with adjustable voltages from 700 mV to 3.36 V. The LDO outputs deliver 300 mA with ranges from 800 mV to 3.3 V. Operating temperatures span -40°C to +125°C, with quiescent currents of 15 mA and 30 mA for the respective regulators.

Feature Summary

• Integrates dual high-current synchronous buck converters and dual low-dropout linear regulators within a single compact package.
• Supports wide input voltage operation suitable for various industrial power supply architectures.
• Includes integrated sequencing logic to manage startup and shutdown transitions between regulator channels.

Applications

• Industrial appliances
• Test and measurement equipment

Procurement Notes

Verify the specific suffix FRHDR against official datasheets to confirm the VQFN-28 package type and tape-and-reel quantity. Ensure compatibility with moisture sensitivity level requirements during storage and reflow soldering processes. Cross-reference the manufacturer part number directly with Texas Instruments documentation to validate current production status and availability constraints.

Selection Notes

Select this component when designing systems requiring multiple regulated rails from a single source. The dual 3-A buck converters are suitable for powering digital logic or motor drivers. The inclusion of LDOs allows for noise-sensitive analog sections. Verify that the required output current and voltage ranges align with the specified limits for both converter types.

Part Context

This device belongs to the LP8733 series of multi-channel PMICs designed for space-constrained applications. It consolidates power management functions typically handled by discrete components. The integration reduces board area and simplifies bill of materials for complex industrial control systems.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the LP8733 family. Verify electrical parameter overlaps before replacing with other TI PMICs.