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Texas Instruments LM76002QRNPRQ1
- Part No.:
- LM76002QRNPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 30-WFQFN Exposed Pad
- Datasheet:
-
LM76002QRNPRQ1.pdf
- Description:
- IC REG BUCK ADJ 2.5A 30WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
LM76002QRNPRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified synchronous step-down DC-DC converter delivering up to 2.5 A output current with 3.5 V to 60 V input range, 1 V to 95% VIN output voltage, and 15 µA quiescent current - designed for automotive camera modules and infotainment power rails.
For engineers reviewing the LM76002QRNPRQ1 datasheet, LM76002QRNPRQ1 pinout, LM76002QRNPRQ1 application, or LM76002QRNPRQ1 equivalent, key selection criteria include its 65 ns minimum on-time, adjustable 300 kHz–2.2 MHz switching frequency, integrated PGOOD flag, FPWM mode capability, and WQFN-30 wettable flanks package for automotive thermal and EMI compliance.
Technical Context
The LM76002QRNPRQ1 employs fixed-frequency peak-current-mode control with internal compensation, enabling stable regulation across wide VIN/VOUT ratios without external loop components. It supports both auto-mode (PFM/DCM at light load) and forced-PWM operation via SYNC/MODE pin configuration.
Its architecture integrates high-side and low-side NMOS FETs with RDS(on) of 95 mΩ (HS) and 45 mΩ (LS) at 25°C, cycle-by-cycle current limiting, hiccup-mode short-circuit protection, and thermal shutdown at 160°C - all optimized for automotive-grade reliability under –40°C to +125°C ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5 V to 60 V - supports 12 V/24 V/48 V automotive battery rails with 65 V absolute max rating. |
| Output Current | 2.5 A continuous - sufficient for powering image sensors, SoCs, and display drivers in ADAS cameras. |
| Quiescent Current | 15 µA in regulation - enables always-on functionality in vehicle wake-up circuits without excessive battery drain. |
| Switching Frequency | 300 kHz to 2.2 MHz - adjustable via RT resistor or external clock; allows optimization for size (high-freq) or efficiency (low-freq). |
| Min On/Off Time | tON-MIN = 65 ns, tOFF-MIN = 95 ns - enables high VIN-to-low VOUT conversion (e.g., 48 V → 3.3 V) in single-stage buck. |
| Feedback Reference | VFB = 1.006 V (typ) - precision reference enables ±1% output accuracy with standard resistor dividers. |
| Power-Good Flag | Open-drain PGOOD with 86–93% UV / 106–113% OV thresholds - provides reliable system-level rail monitoring and sequencing. |
Pinout & Package
LM76002QRNPRQ1 is housed in a 30-pin WQFN package (6.00 mm × 4.00 mm) with wettable flanks for automated optical inspection and enhanced thermal dissipation via exposed DAP connected to AGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (1,2,3,4,5) | Primary power input | Supplies bias LDO and HS FET; requires local CIN placement for low-impedance path to PGND. |
| SW (1,2,3,4,5) | Switch node | Connects to inductor and boot capacitor; high di/dt node requiring minimized trace area and tight layout. |
| BOOT (6) | Bootstrap supply | Drives HS gate via 470 nF capacitor to SW; critical for proper high-side turn-on and efficiency. |
| AGND (13,14,15) | Analog ground reference | Reference for FB, EN, SS/TRK; must be star-connected to PGND at single point to avoid noise coupling. |
| PGND (20,21,22,24,25,26) | Power ground return | Source connection for LS FET; ties to DAP, CIN/COUT grounds, and system GND with minimal impedance. |
| EN (18) | Precision enable | UVLO-adjustable input (1.14–1.25 V threshold); supports controlled startup and system-level power sequencing. |
| FB (12) | Feedback input | Monitors VOUT via resistor divider; 1.006 V reference enables accurate output setting from 1 V to 95% VIN. |
| PGOOD (16) | Power-good flag | Open-drain output signaling valid regulation; used for MCU reset assertion or downstream enable coordination. |
| SYNC/MODE (17) | Frequency control | Selects PFM (ground), FPWM (high), or external sync (clock input); enables EMI reduction or multi-rail synchronization. |
| SS/TRK (11) | Soft-start/tracking | Internal 6.3 ms ramp or external capacitor adjustment; supports output voltage tracking during power-up sequences. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C ambient operation with HBM ±2 kV / CDM ±750 V ESD robustness - meets automotive safety requirements. |
| Integrated synchronous rectification | Eliminates external Schottky diode; reduces conduction loss and improves full-load efficiency by >5% vs. asynchronous designs. |
| Adjustable soft-start (6.3 ms default) | Prevents inrush current during startup; external capacitor extends ramp for coordinated multi-rail sequencing. |
| High-efficiency light-load architecture | Auto PFM/DCM mode reduces IQ to 15 µA at no load while maintaining regulation - critical for parked-mode battery life. |
| Wide conversion ratio support | 65 ns tON-MIN enables direct 48 V → 3.3 V conversion without pre-regulator, reducing BOM count and board space. |
Applications
| Camera Power Supply | Infotainment Core Rail |
|---|---|
Use Scenario: Powers CMOS image sensor, ISP, and interface circuitry in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary 3.3 V or 5 V buck regulator with precise PGOOD signaling for sensor initialization sequence. Use Value: 15 µA quiescent current extends vehicle battery life during extended parking; wettable flanks ensure solder joint reliability in vibration-prone mounting locations. |
Use Scenario: Supplies core voltage to infotainment head-unit SoC (e.g., NXP i.MX8, Qualcomm SA8155) requiring stable 1.1 V or 1.8 V at up to 2.5 A. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with adjustable frequency to avoid AM-band EMI interference. Use Value: 300 kHz–2.2 MHz programmability enables CISPR-25 Class 5 compliance; FPWM mode ensures constant ripple for sensitive analog subsystems. |
| ADAS Domain Controller | Electric Vehicle Display Backlight |
Use Scenario: Generates isolated 5 V rail for CAN FD transceivers and radar preprocessing units in centralized ADAS ECUs. IC Role / Device Role / Timing Role: Input-capable buck converter accepting wide-range 12 V–48 V vehicle bus with robust overvoltage/short-circuit protection. Use Value: 60 V max input and hiccup-mode fault response prevent latch-up during load dump events; thermal shutdown at 160°C protects against sustained overload. |
Use Scenario: Drives LED backlight strings in digital instrument clusters or center displays using constant-voltage output stage. IC Role / Device Role / Timing Role: Precision-regulated intermediate rail (e.g., 12 V) feeding external LED driver ICs with tight tolerance. Use Value: ±1% output accuracy and 1.006 V reference ensure consistent brightness across temperature; PGOOD enables display firmware boot validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM76003QRNPRQ1 | 3.5 A output current, higher HS/LS current limits (4.35 A/3.4 A), identical pinout and feature set. | Better suited for higher-power infotainment processors or multi-sensor camera fusion units. | Select when >2.5 A continuous load or higher peak current margin is required; drop-in replacement with same PCB layout. |
| TPS54360BQDDAQ1 | 3.5 A, 60 V input, but uses current-mode control without integrated FETs - requires external MOSFETs and more external components. | Used where discrete FET selection is needed for thermal or reliability tailoring (e.g., high-temp under-hood). | Choose when design flexibility outweighs solution size; not pin-compatible - requires new layout and compensation redesign. |
Compared with LM76003QRNPRQ1, the LM76002QRNPRQ1 offers lower cost and thermal footprint for 2.5 A applications; versus TPS54360BQDDAQ1, it delivers smaller total solution size and faster time-to-market due to integrated power stage and internal compensation.
Availability
LM76002QRNPRQ1 is available at Aetrix Electronics and suitable for automotive camera systems, infotainment head-units, and ADAS domain controllers requiring stable component supply with AEC-Q100 compliance and long-term production support.
Supply support for LM76002QRNPRQ1 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 broad manufacturing scale.
The LM7600x-Q1 product line was engineered specifically for automotive power conversion - emphasizing AEC-Q100 reliability, wide-input operation, low IQ, and EMI-optimized layout in compact WQFN packages.
FAQ
What is the maximum input voltage rating for the LM76002QRNPRQ1?
The LM76002QRNPRQ1 has an absolute maximum input voltage of 65 V on the PVIN pin, with recommended operating range from 3.5 V to 60 V. This allows direct connection to 12 V, 24 V, and 48 V automotive battery systems, including transient conditions like load dump per ISO 7637-2.
Does the LM76002QRNPRQ1 support output voltage tracking?
Yes, the LM76002QRNPRQ1 supports output voltage tracking via the SS/TRK pin. When connected to an external voltage ramp (e.g., from another regulator's soft-start node), it synchronizes its output rise to match - essential for powering multi-rail SoCs or FPGAs with strict sequencing requirements.
How does the LM76002QRNPRQ1 handle short-circuit faults?
The LM76002QRNPRQ1 implements hiccup-mode short-circuit protection: upon current limit detection, it shuts down for 46 ms (typical), then attempts restart. This prevents thermal runaway while allowing automatic recovery if the fault clears - confirmed in datasheet Section 6.5 under IHS_LIMIT and NOC parameters.
Can the LM76002QRNPRQ1 operate with an external bias supply?
Yes, the LM76002QRNPRQ1 accepts an external bias voltage on the BIAS pin. When VOUT is between 3.3 V and 18 V, TI recommends tying BIAS to VOUT; otherwise, connect to a clean 3.3 V or 5 V rail. This reduces power loss in the internal LDO and improves light-load efficiency - specified in Pin Functions Table and Section 6.5.
What package type and thermal characteristics does the LM76002QRNPRQ1 use?
The LM76002QRNPRQ1 uses a 30-pin WQFN package (6.00 mm × 4.00 mm) with wettable flanks and exposed DAP thermally connected to AGND. Its junction-to-board thermal resistance (RθJB) is 9.1 °C/W, and junction-to-ambient (RθJA) is 29.6 °C/W - enabling 2.5 A operation in automotive ambient up to +125°C with appropriate PCB copper area.
LM76002QRNPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 30-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 57V
- Current - Output:
- 2.5A
- Frequency - Switching:
- 300kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 30-WQFN (6x4)
LM76002QRNPRQ1 FAQ
1.How can I place an order for LM76002QRNPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM76002QRNPRQ1 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 LM76002QRNPRQ1 reliable?
The price and inventory of LM76002QRNPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM76002QRNPRQ1 is usually 5 days.
3.What payment methods are accepted for LM76002QRNPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM76002QRNPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM76002QRNPRQ1?
LM76002QRNPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM76002QRNPRQ1 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 LM76002QRNPRQ1?
For technical support, including LM76002QRNPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM76002QRNPRQ1 requirements.
6.How does Aetrix verify that LM76002QRNPRQ1 is sourced from the original manufacturer or authorized distributors?
All LM76002QRNPRQ1 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 LM76002QRNPRQ1 meets industry standards.
7.What is the process for return or replacement of LM76002QRNPRQ1?
All LM76002QRNPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM76002QRNPRQ1, 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 LM76002QRNPRQ1 part is unused and in its original packaging.
Return procedure for LM76002QRNPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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