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Product Detailed Parameters
- Description：DUAL HIGH-CURRENT BUCK CONVERTER
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Topology：Step-Down (Buck)
- Number of Outputs：2
- Frequency - Switching：2MHz
- Voltage/Current - Output 1：0.7V ~ 3.36V, 300mA
- Voltage/Current - Output 2：0.7V ~ 3.36V, 300mA
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：2.8V ~ 5.5V
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：28-VFQFN Exposed Pad
- Supplier Device Package：28-VQFN (5x5)
- Grade：-
- Qualification：-
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Overview
The LP87334ERHDR is a specialized Power Management IC (PMIC) from Texas Instruments, housed in a 28-pin VQFN package. It integrates two high-current step-down DC/DC buck converters and dual linear regulators. The device operates within an input voltage range of 2.8 V to 5.5 V. The buck converters support output currents up to 3 A each, with adjustable output voltages ranging from 700 mV to 3.36 V. The component functions reliably across an ambient temperature range of -40°C to +125°C.
Feature Summary
- Integrates two high-efficiency step-down DC/DC converters and dual linear regulators in a single compact package
- Supports high output current capabilities for demanding power delivery requirements
- Operates over an extended industrial temperature range suitable for harsh environments
Applications
- Industrial appliances
- Test and measurement equipment
- Portable instrumentation
Procurement Notes
Verify the specific suffix ERHDR corresponds to the required tape and reel packaging configuration. Confirm that the VQFN-28 footprint matches the target PCB layout dimensions. Ensure thermal management strategies account for the high-current buck converter outputs during operation. Check for moisture sensitivity level requirements prior to surface mount assembly processes.
Selection Notes
Select this PMIC when space-constrained designs require multiple regulated rails from a single source. The integration of both switching and linear regulators allows for efficient bulk power conversion alongside low-noise analog supply generation. Consider the 28-pin VQFN package constraints for thermal dissipation and board real estate availability.
Part Context
This component belongs to the LP8733 series of multi-channel PMICs designed for general-purpose power management. It shares architectural similarities with other variants in the family but offers specific pinout and feature combinations tailored for integrated power solutions. The device addresses the need for consolidated power management in compact electronic systems.
Replacement Considerations
Consult official substitution guides for compatible alternatives within the LP8733 family or equivalent TI PMICs. Verify pin-to-pin compatibility and electrical parameter alignment before replacing the component in existing designs.
