LP87725-Q1 - Radar PMIC 3 Buck + LDO | Texas Instruments
MPN: LP87725-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for LP87725-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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LP87721-Q1
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View Datasheet →LP87724-Q1
✅ Drop-In📋 Reference alternative (not in catalog)
LP87725-Q1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Texas Instruments |
| Category | Power Management IC (PMIC) |
| Number of Buck Converters | 3 |
| Number of LDO Regulators | 1 |
| Load Switch | 1 |
| Total Outputs | 5 |
| Output Type | [DATA_NEEDED: Output Type] |
| Input Voltage Range | [DATA_NEEDED: Input Voltage Range] |
| Output Voltage 1 | [DATA_NEEDED: Output Voltage 1] |
| Output Current 1 | [DATA_NEEDED: Output Current 1] |
| Switching Frequency | [DATA_NEEDED: Switching Frequency] |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] |
| Interface | [DATA_NEEDED: Interface] |
| Automotive Grade | Yes (AEC-Q100 via Q1 suffix) |
| Package | 24-VQFN-HR (4x4) |
| Mounting Type | Surface Mount |
| RoHS Status | [DATA_NEEDED: RoHS Status] |
LP87725-Q1 24-vqfn-hr (4x4) Pin Configuration Guide
Complete pinout information for LP87725-Q1 (24-vqfn-hr (4x4) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for LP87725-Q1.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LP87725-Q1 is suitable for 6 applications: Automotive Radar, Industrial Radar, mmWave Sensor Power, ADAS Electronic Control Unit (ECU), Drone and UAV Radar, Traffic Monitoring Radar.
Automotive Radar
The LP87725-Q1 is specifically designed to power TI's AWR and IWR mmWave radar MMICs in automotive ADAS applications. Its three buck converters provide separate rails for the radio frequency (RF) front-end, analog baseband, and digital core, while the integrated LDO supplies a low-noise rail for sensitive analog circuits. The load switch allows complete shutdown of unused sections to reduce quiescent current. The device's programmable sequencing ensures the radar MMIC powers up in the correct order, preventing damage. The AEC-Q100 qualification guarantees operation over automotive temperature ranges and stress conditions.
Recommended
Industrial Radar
In industrial radar applications, such as traffic monitoring, level sensing, and robotics, the LP87725-Q1 provides the multiple supply rails required by radar MMICs and signal processors. The three buck converters achieve high efficiency while delivering the varied voltages needed for the analog and digital portions of the radar system. The load switch enables power cycling of specific blocks to save energy. The remote voltage sensing feature compensates for IR drop across the PCB, maintaining accurate output voltage at the point-of-load, which is critical for reliable radar measurements in industrial environments.
Recommended
mmWave Sensor Power
The LP87725-Q1 powers mmWave radar sensors used in applications from smart connected devices to autonomous systems. It converts a single input supply into multiple regulated outputs: three buck converters for the radar MMIC's RF, IF, and digital rails, and an LDO for a clean analog supply. The load switch isolates a peripheral block to save power when the system is idle. With programmable delays and sequencing, the LP87725-Q1 ensures the sensor wakes up safely and shuts down reliably, improving system robustness and reducing design complexity.
Recommended
ADAS Electronic Control Unit (ECU)
In ADAS ECUs, the LP87725-Q1 regulates power for radar and camera fusion modules. The three buck converters provide efficient step-down conversion with output voltages set for specific radar MMIC requirements, while the LDO delivers low-noise supply for clock and interface circuits. The load switch enables independent control of radar power, allowing the system to conserve energy when the radar is not active. The Q1 qualification meets harsh automotive electrical requirements, and the small VQFN package saves space on the ECU PCB, helping reduce overall system size.
Recommended
Drone and UAV Radar
The LP87725-Q1 supports radar sensors in drones and unmanned aerial vehicles (UAVs) for obstacle detection, terrain mapping, and landing assistance. Its ability to generate multiple power rails from a single battery supply simplifies the power architecture. The three buck converters are highly efficient, extending flight time, while the LDO provides noise-free power for sensitive analog circuitry. The load switch helps manage system power during startup and idle modes. The compact 24-pin VQFN-HR package minimizes footprint and weight, which is crucial for weight-sensitive UAV designs.
Recommended
Traffic Monitoring Radar
The LP87725-Q1 powers radar sensors used in traffic monitoring for smart city infrastructure. The PMIC provides the required supply voltages for the radar transceiver and processing chain, with three buck converters for high-current digital rails and an LDO for low-noise analog rails. The load switch allows selective powering to save energy. The remote voltage sensing feature maintains accurate output voltages, ensuring consistent radar performance even with long traces and varying load conditions, which is essential for reliable vehicle detection and speed measurement in intelligent transportation systems.
Recommended
Recommended Products Summary
Engineering reference data for LP87725-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LP87721-Q1 | LP87724-Q1 |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 24-VQFN-HR (4x4) | 24-VQFN-HR (4x4) | 24-VQFN-HR (4x4) |
| Number of Buck Converters | 3 | [DATA_NEEDED] | [DATA_NEEDED] |
| Number of LDO Regulators | 1 | [DATA_NEEDED] | [DATA_NEEDED] |
| Load Switch | Yes | [DATA_NEEDED] | [DATA_NEEDED] |
| Total Outputs | 5 | [DATA_NEEDED] | [DATA_NEEDED] |
| Automotive Qualified (AEC-Q100) | Yes | [DATA_NEEDED] | [DATA_NEEDED] |
| Input Voltage Range | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Three buck converters + LDO + load switch (vs LP87721-Q1)
- Programmable sequencing with remote sensing (vs LP87724-Q1)
- Automotive AEC-Q100 qualified (vs non-Q1 alternatives)
Design Notes
The LP87725-Q1 integrates buck converters and an LDO. The power dissipated depends on switching losses and output currents. Ensure adequate PCB copper area and vias for heat spreading from the VQFN-HR package. The exposed pad must be soldered to a ground plane. For high output currents, consider thermal design calculations from the datasheet.
Route the remote sense lines from the point-of-load back to the FB pins to improve output voltage accuracy. Keep these traces away from switching nodes to avoid noise pickup. Use thick traces for high-current outputs and a solid ground plane. Place the input and output capacitors close to the IC pins to minimize parasitic loops.
Use the programmable start-up and shutdown delays to sequence the output rails in the order required by the radar MMIC. Connect the ENABLE signal to a supervisor or controller. Incorrect sequencing can cause latch-up or a failure to boot. Refer to the datasheet for the recommended sequence for the AWR or IWR MMIC.
Compliance Information
AEC-Q100 qualification inferred from Q1 suffix and automotive application description. Other compliance status not verified from provided data.
