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Texas Instruments LM62460Q5RPHRQ1
- Part No.:
- LM62460Q5RPHRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-PowerVFQFN
- Datasheet:
-
LM62460Q5RPHRQ1.pdf
- Description:
- IC REG BUCK 5V 6A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,646
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Product details
Overview
LM62460Q5RPHRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive buck converter delivering up to 6 A output current, operating from 3 V to 36 V input, with fixed 5 V output, 2.2 MHz switching frequency, and integrated high- and low-side MOSFETs (RDS(on) = 21 mΩ / 13 mΩ). It serves as a primary power supply in ADAS camera modules requiring low EMI, high power density, and functional safety support.
For engineers reviewing the LM62460Q5RPHRQ1 datasheet, LM62460Q5RPHRQ1 pinout, LM62460Q5RPHRQ1 application, or LM62460Q5RPHRQ1 equivalent, key selection criteria include its 6 A continuous rating, wettable-flank 4.5 mm × 3.5 mm VQFN-HR package, pin-configurable spread spectrum, RESET output with filtered delayed release, and dual-side cooling compatibility with LM61480T-Q1/LM61495T-Q1.
Technical Context
The LM62460Q5RPHRQ1 implements a synchronous buck topology with integrated 21 mΩ/13 mΩ MOSFETs, adjustable SW node rise time via RBOOT, and dual-random spread spectrum (±4% frequency hopping) to suppress peak EMI emissions. Its internal compensation, soft-start, and thermal shutdown eliminate external loop components and simplify layout.
It supports three operating modes-Auto (PFM/PWM hybrid), forced PWM, and external synchronization-via the SYNC/MODE pin, and uses the RT pin to select fixed 400 kHz, fixed 2.2 MHz, or adjustable 200–2200 kHz switching frequency. The BIAS pin enables efficient operation across wide output voltage ranges by accepting 3.3–12 V bias supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6 A continuous - supports compact 5 V rails for multi-sensor ADAS ECUs without external current boosting. |
| Input Voltage Range | 3 V to 36 V - sustains regulation during cold-crank (≥3.7 V startup) and load-dump transients (42 V/100 ms). |
| Switching Frequency | Fixed 2.2 MHz - enables small external inductors & capacitors; avoids AM band interference. |
| Efficiency | 92.6% at 5 V/5 A/2.2 MHz - reduces thermal load in sealed automotive enclosures. |
| Quiescent Current | 5 µA in auto mode - extends battery life in always-on vehicle subsystems. |
| Thermal Resistance | θJA = 21.6 °C/W (EVM) - validated on 4-layer board; enables >3 W dissipation at ΔT = 65 °C ambient. |
| RESET Output | Open-drain with 1.2–3.75 ms active delay - provides reliable power-good signaling after soft-start completion. |
Pinout & Package
LM62460Q5RPHRQ1 uses a 16-pin VQFN-HR (RPH) package with wettable flanks, measuring 4.5 mm × 3.5 mm, optimized for optical solder inspection and dual-side PCB cooling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1, VIN2 | Power input terminals | Dual-input configuration lowers input loop inductance; requires low-impedance parallel connection to PGND1/PGND2. |
| PGND1, PGND2 | Power ground terminals | Separate low-side MOSFET return paths; must be tied together with minimal trace inductance near IC. |
| SW | Switch node | Connects directly to output inductor; critical for EMI control-requires tight layout and controlled slew rate via RBOOT. |
| FB | Feedback input | Monitors 5 V output via internal 1 V reference and precision resistor divider; accuracy ±1.5% over load/temperature. |
| EN | Enable control | Logic-compatible input with 1.263 V threshold and 0.5 V hysteresis-supports adjustable UVLO when pulled from VIN. |
| RESET | Power-good indicator | Open-drain output asserting low until FB reaches 94–96.5% of target; includes 10–45 µs deglitch and 1.2–3.75 ms release delay. |
| RT | Frequency setting | Grounded for 2.2 MHz, tied to VCC for 400 kHz, or resistor-connected (6.8 kΩ–80 kΩ) for 200–2200 kHz adjustment. |
| SPSP | Spread spectrum enable | Pulled to VCC or grounded via resistor to activate DRSS modulation-reduces peak EMI by spreading energy across ±4% bandwidth. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation-meets automotive infotainment and ADAS thermal requirements. |
| Pin-configurable spread spectrum | Reduces CISPR-25 Class 5 peak emissions without external filters-eliminates need for costly shielding in camera ECU designs. |
| Adjustable SW node rise time | RBOOT-controlled slew rate minimizes high-frequency ringing-directly improves conducted and radiated EMI performance. |
| Low-EMI symmetrical pinout | Input/ground/power path symmetry reduces loop area and common-mode noise-enables compliant 2-layer PCB layouts. |
| Built-in protection suite | Includes thermal shutdown (168°C trip), hiccup-mode overcurrent (10.35 A HS limit), and input UVLO-reduces system-level fault management overhead. |
Applications
| Automotive Camera Module | Instrument Cluster Power Rail |
|---|---|
Use Scenario: Powers image sensor, ISP, and interface logic in rear-view or surround-view cameras exposed to engine bay temperatures. IC Role / Device Role / Timing Role: Primary 5 V buck regulator delivering stable 6 A under load dump and cranking conditions. Use Value: 2.2 MHz operation avoids AM band interference; 5 µA quiescent current preserves battery during parking mode. |
Use Scenario: Supplies display driver, microcontroller, and backlight controller in digital instrument clusters with strict EMI limits. IC Role / Device Role / Timing Role: Fixed-output 5 V source with RESET signal synchronized to MCU boot sequence. Use Value: Pin-selectable spread spectrum meets CISPR-25 Class 5 without ferrite beads; wettable flank package enables AOI verification. |
| ADAS Radar Processing Unit | Infotainment Head Unit Core Supply |
Use Scenario: Provides clean 5 V rail to FPGA-based radar signal processors in front-end ADAS ECUs. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with low output ripple (<15 mVpp) and fast transient response. Use Value: 92.6% efficiency at 5 A/2.2 MHz reduces heatsink size; dual-side cooling compatibility allows stacked thermal design. |
Use Scenario: Generates main 5 V domain for SoC, audio codec, and USB peripherals in head units with aggressive size constraints. IC Role / Device Role / Timing Role: Compact, integrated buck converter replacing discrete controller + external MOSFETs. Use Value: 4.5 mm × 3.5 mm footprint saves >30% board area vs. legacy solutions; built-in soft-start prevents inrush-induced brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480Q5RPHRQ1 | 8 A rated, identical pinout and package; higher current capability with same 5 V fixed output and 2.2 MHz option. | Suitable where future-proofing for higher load or parallel operation is required; shares same EVM and layout. | Select when system margin demands >6 A or dual-phase scalability is planned. |
| LM61495Q5RPHRQ1 | 10 A rated, same RPH package and pinout; higher current limit (17.3 A typical) and lower RDS(on) (18 mΩ/11 mΩ). | Used in high-power ADAS domains like central perception ECUs; requires revised thermal design due to higher power handling. | Choose when peak loads exceed 6 A or when single-supply consolidation across multiple sub-systems is targeted. |
Compared with LM61480Q5RPHRQ1 and LM61495Q5RPHRQ1, the LM62460Q5RPHRQ1 offers optimal cost-performance balance for 5–6 A automotive rails-lower BOM count than discrete solutions, smaller footprint than 8/10 A variants, and full feature parity including spread spectrum, RESET, and dual-side cooling readiness.
Availability
LM62460Q5RPHRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, instrument cluster, and ADAS radar systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for LM62460Q5RPHRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive-grade power management ICs, with decades of automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The LM6x4xx-Q1 family was designed specifically for next-generation automotive power systems-emphasizing ultra-low EMI, functional safety readiness, high power density, and seamless integration into space-constrained ADAS and cockpit domains.
FAQ
What is the maximum continuous output current of the LM62460Q5RPHRQ1?
The LM62460Q5RPHRQ1 delivers up to 6 A continuous output current under recommended operating conditions (TJ ≤ 150°C, θJA = 21.6 °C/W on EVM). This rating is validated across –40°C to +125°C ambient with proper PCB thermal design and airflow. Derating applies above 85°C ambient per thermal curves in Section 6.4 of the LM62460Q5RPHRQ1 datasheet.
Does the LM62460Q5RPHRQ1 support spread spectrum modulation, and how is it configured?
Yes, the LM62460Q5RPHRQ1 supports Dual Random Spread Spectrum (DRSS) modulation with ±4% frequency deviation. It is enabled by connecting the SPSP pin to VCC (disables tone correction) or to ground via a resistor (enables tone correction to reduce output ripple). Floating SPSP is prohibited; configuration is verified in Section 7.3.10 of the LM62460Q5RPHRQ1 datasheet.
What is the purpose and timing behavior of the RESET output on the LM62460Q5RPHRQ1?
The RESET output on the LM62460Q5RPHRQ1 is an open-drain signal indicating valid output regulation. It asserts low until FB reaches 94–96.5% of target voltage, then releases after a programmable 1.2–3.75 ms delay (tRESET_ACT). Deglitch filtering ensures immunity to transient noise, making it suitable for MCU reset sequencing in automotive applications using the LM62460Q5RPHRQ1.
Can the LM62460Q5RPHRQ1 operate with input voltages below 3.7 V?
Yes-the LM62460Q5RPHRQ1 operates down to 3.0 V after startup, but requires ≥3.7 V at VIN to initiate regulation. Once running, it sustains output during cold-crank events where input dips to 3 V. This two-threshold behavior (3.7 V startup, 3.0 V hold-up) is specified in Section 6.3 of the LM62460Q5RPHRQ1 datasheet and enables robust operation in 12 V automotive systems.
Is the LM62460Q5RPHRQ1 pin-compatible with other devices in the LM6x4xx-Q1 family?
Yes-the LM62460Q5RPHRQ1 is pin-to-pin compatible with LM61480Q5RPHRQ1 and LM61495Q5RPHRQ1 in the same RPH package. All share identical pin functions, layout, and thermal pad structure, enabling drop-in upgrades to 8 A or 10 A versions without PCB revision. This compatibility is explicitly stated in Section 1 of the LM62460Q5RPHRQ1 datasheet.
LM62460Q5RPHRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 6A
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-VQFN-HR (4.5x3.5)
LM62460Q5RPHRQ1 FAQ
1.How can I place an order for LM62460Q5RPHRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM62460Q5RPHRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM62460Q5RPHRQ1 reliable?
The price and inventory of LM62460Q5RPHRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM62460Q5RPHRQ1 is usually 5 days.
3.What payment methods are accepted for LM62460Q5RPHRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM62460Q5RPHRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM62460Q5RPHRQ1?
LM62460Q5RPHRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM62460Q5RPHRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM62460Q5RPHRQ1?
For technical support, including LM62460Q5RPHRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM62460Q5RPHRQ1 requirements.
6.How does Aetrix verify that LM62460Q5RPHRQ1 is sourced from the original manufacturer or authorized distributors?
All LM62460Q5RPHRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM62460Q5RPHRQ1 meets industry standards.
7.What is the process for return or replacement of LM62460Q5RPHRQ1?
All LM62460Q5RPHRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM62460Q5RPHRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM62460Q5RPHRQ1 part is unused and in its original packaging.
Return procedure for LM62460Q5RPHRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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