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Texas Instruments LMR36006BQRNXRQ1
- Part No.:
- LMR36006BQRNXRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 12-PowerVFQFN
- Datasheet:
-
LMR36006BQRNXRQ1.pdf
- Description:
- IC REG BUCK ADJ 600MA 12VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,279
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Product details
Overview
LMR36006BQRNXRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC converter delivering up to 0.6 A output current across a 4.2 V to 60 V input range. It features peak-current-mode control, 1 MHz fixed switching frequency, ±1.5% reference voltage tolerance, and integrated high-side/low-side MOSFETs in a 2 mm × 3 mm VQFN-HR package. It is designed for automotive ADAS camera modules requiring compact, low-EMI, functional-safety-capable power conversion.
For engineers reviewing the LMR36006BQRNXRQ1 datasheet, LMR36006BQRNXRQ1 pinout, LMR36006BQRNXRQ1 application, or LMR36006BQRNXRQ1 equivalent, key selection criteria include its 1 MHz switching frequency variant, HotRod™ package EMI performance, automotive-grade thermal range (–40°C to +150°C junction), precision enable threshold (1.157 V), and power-good flag with 80–200 µs deglitch delay.
Technical Context
The LMR36006BQRNXRQ1 implements peak-current-mode control with internal loop compensation, enabling stable regulation without external compensation components. Its auto-mode operation transitions between PWM (constant 1 MHz) at medium-to-heavy loads and PFM with diode emulation at light loads to maintain >94% efficiency at 12 VIN/5 VOUT/0.6 A while achieving 26 µA quiescent current.
It integrates protection features including cycle-by-cycle current limit (0.8–1.2 A high-side, 0.6–0.95 A low-side), hiccup-mode short-circuit response (94 ms off-time), thermal shutdown (170°C trip), and input UVLO-enabled by a precision enable input with 110 mV hysteresis and independent VCC LDO (5 V ±5%) with 3.6–4.0 V UVLO rising threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.2 V to 60 V - supports wide automotive battery transients (up to 66 V absolute max); compatible with 12 V and 24 V systems. |
| Output Current | 0.6 A - sufficient for powering image sensors, microcontrollers, and interface ICs in compact ADAS modules. |
| Switching Frequency | 1 MHz - enables use of small external inductors (e.g., 2.2 µH) and reduces solution size vs. 400 kHz variants. |
| Quiescent Current | 26 µA (typ.) - minimizes standby power loss in always-on automotive subsystems. |
| Reference Voltage Tolerance | ±1.5% - ensures tight output regulation across temperature and line/load conditions for safety-critical rails. |
| Junction Temperature Range | –40°C to +150°C - meets AEC-Q100 Grade 1 requirements for under-hood and camera module placement. |
| Package | VQFN-HR (12-pin, 2.0 mm × 3.0 mm) - HotRod™ construction reduces switch-node ringing and simplifies EMI-compliant layout. |
Pinout & Package
The LMR36006BQRNXRQ1 is housed in a 12-pin VQFN-HR (RNX) package measuring 2.0 mm × 3.0 mm with wettable flanks. The package uses flip-chip HotRod™ technology to minimize parasitic inductance and improve EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 11 PGND | Power ground | Primary return path for high-current switching; must be connected to AGND and CIN with short, wide traces to minimize noise coupling. |
| 2, 10 VIN | Main input supply | Accepts 4.2–60 V input; connects directly to input capacitor; requires low-inductance routing to reduce voltage spikes. |
| 3 NC | No-connect | Internally unconnected; PCB trace should connect SW to this pin to simplify CBOOT routing per TI layout guidance. |
| 4 BOOT | Bootstrap supply | Provides gate drive voltage for high-side MOSFET; requires 100 nF ceramic capacitor tied to SW pin. |
| 5 VCC | Internal 5-V LDO output | Supplies internal control circuitry; not for external loading; requires 1 µF bypass capacitor to AGND. |
| 6 AGND | Analog ground reference | Ground reference for FB, EN, PG; must be star-connected to PGND near device to avoid noise injection into feedback path. |
| 7 FB | Feedback input | Senses output voltage via resistor divider; 1.0 V nominal reference; leakage <0.2 nA ensures accuracy with high-value dividers. |
| 8 PG | Open-drain power-good flag | Asserts high when VOUT is within ±7% of target; includes 80–200 µs deglitch filter to reject transient excursions. |
| 9 EN | Enable input | Logic-level control with 1.157 V turn-on threshold and 110 mV hysteresis; supports direct VIN connection or precision UVLO using external divider. |
| 12 SW | Switch node | Connects to power inductor; high dv/dt node requiring minimized trace area and guard ring to reduce EMI radiation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient (–40°C to +150°C junction), enabling deployment in engine bay and ADAS camera housings. |
| Functional Safety-Capable documentation | TI provides FIT rate data, failure mode analysis, and safety manual to support ISO 26262 ASIL-B system integration. |
| HotRod™ VQFN-HR package | Eliminates bond wires to reduce switch-node ringing, enabling CISPR-25 Class 5 compliance without complex filtering. |
| Auto PFM/PWM mode transition | Maintains >90% efficiency from 1 mA to 0.6 A load without external mode control, simplifying firmware and reducing BOM count. |
| Integrated power-good flag with deglitch | Provides reliable system reset signaling without external supervisor IC; eliminates need for discrete voltage monitor on output rail. |
Applications
| ADAS Camera Module Power | Body Control Module (BCM) Sub-Rail |
|---|---|
Use Scenario: Powers CMOS image sensor, ISP, and SerDes interface in compact rear-view or surround-view camera units mounted externally. IC Role / Device Role / Timing Role: Primary 5 V or 3.3 V point-of-load regulator; delivers regulated output with <1.5% error over temperature and line variation. Use Value: Small 2 mm × 3 mm footprint and low EMI allow placement near sensitive analog imaging circuits without shielding. | Use Scenario: Generates auxiliary 3.3 V or 5 V rail for microcontroller peripherals (CAN transceivers, LIN, EEPROM, LED drivers) in centralized BCM units. IC Role / Device Role / Timing Role: Secondary buck converter downstream of main 12 V supply; provides isolated, low-noise logic power with precise enable sequencing. Use Value: 26 µA quiescent current and 1.157 V enable threshold support low-power sleep modes and controlled wake-up via vehicle bus signals. |
| Automotive Infotainment Display Backlight Driver Bias | Telematics Control Unit (TCU) Core Logic Supply |
Use Scenario: Supplies bias voltage to LED driver ICs powering LCD or OLED display backlights in center-stack infotainment systems. IC Role / Device Role / Timing Role: Stable intermediate rail generator; accepts wide-input transients (load dump, cold crank) and maintains regulation during battery dips. Use Value: 60 V max input and 66 V absolute rating ensure uninterrupted operation during ISO 7637-2 pulse 5a (load dump) events. | Use Scenario: Provides clean 1.2 V or 1.8 V core supply (via secondary LDO) for ARM-based applications processors in cellular-connected TCUs. IC Role / Device Role / Timing Role: Pre-regulator feeding low-dropout linear regulator; delivers low-noise, tightly regulated input to minimize processor supply noise sensitivity. Use Value: ±1.5% reference tolerance and 80–200 µs PG deglitch ensure deterministic boot timing and prevent false resets during RF transmission bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMR36015BQRNXRQ1 | Same pinout, 1.5 A output current, identical 1 MHz frequency and package; higher RDS(on) (HS: 225–435 mΩ, LS: 150–280 mΩ) shared across both devices. | Supports higher current loads (e.g., multi-sensor fusion modules); requires larger inductor and output capacitor due to increased IOUT. | Select when >0.6 A sustained load is required; no PCB change needed due to pin compatibility. |
| LMR33630FQRNXTQ1 | 36 V max input (vs. 60 V), 3 A output, 400 kHz switching, same VQFN-HR package; lacks spread spectrum and CISPR-25 Class 5 certification. | Better suited for lower-voltage interior modules (e.g., door controllers); not rated for 60 V transients or full AEC-Q100 Grade 1 junction range. | Choose for cost-sensitive, non-under-hood applications where 36 V input suffices and EMI requirements are less stringent. |
Compared with LMR36015BQRNXRQ1 and LMR33630FQRNXTQ1, the LMR36006BQRNXRQ1 offers optimal balance of ultra-small footprint, 60 V input resilience, and certified low-EMI performance for space-constrained, safety-critical automotive vision systems-without over-provisioning current or sacrificing transient robustness.
Availability
LMR36006BQRNXRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, body control modules, and telematics control units requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for LMR36006BQRNXRQ1 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 designing analog ICs, embedded processors, and system solutions for automotive, industrial, and personal electronics markets.
The LMR36006-Q1 product line delivers ultra-small, high-voltage synchronous buck converters optimized for automotive ADAS, infotainment, and body electronics-prioritizing AEC-Q100 qualification, functional safety readiness, and EMI-compliant integration in space-constrained modules.
FAQ
What is the switching frequency of the LMR36006BQRNXRQ1?
The LMR36006BQRNXRQ1 operates at a fixed 1 MHz switching frequency, as confirmed in the Device Comparison Table (page 3 of SNVSAY7D). This frequency enables compact magnetic design with typical 2.2 µH inductors and supports high-density PCB layouts in automotive camera modules. It differs from the 400 kHz and 2.1 MHz variants in the same family, and no frequency programming or external synchronization is supported.
Does the LMR36006BQRNXRQ1 support spread spectrum modulation?
No, the LMR36006BQRNXRQ1 does not support spread spectrum modulation. Per the Device Comparison Table, only the "FSC" suffix variants (e.g., LMR36006FSCQRNXRQ1) include spread spectrum. The LMR36006BQRNXRQ1 relies on HotRod™ packaging, parallel input paths, and optimized layout to meet CISPR-25 Class 5 emissions without spread spectrum-confirmed in Section 1 Features and Section 8.3.4.
What is the maximum output current capability of the LMR36006BQRNXRQ1?
The LMR36006BQRNXRQ1 delivers up to 0.6 A of continuous output current, as specified in the Absolute Maximum Ratings (Section 7.3) and validated across –40°C to +150°C junction temperature. This rating assumes proper thermal management using the VQFN-HR package's 23.3°C/W junction-to-board thermal resistance and adequate PCB copper area per TI layout guidelines.
Is the LMR36006BQRNXRQ1 pin-compatible with other devices in the LMR360xx-Q1 family?
Yes, the LMR36006BQRNXRQ1 is pin-compatible with the LMR36015-Q1 (1.5 A) and LMR33620/30-Q1 (2 A / 3 A) per Section 1 Features. All share the same 12-pin VQFN-HR (RNX) package, identical pinout, and compatible PCB footprint-enabling scalable power design where only the inductor and output capacitor need revision to accommodate higher current variants.
What protection features are integrated into the LMR36006BQRNXRQ1?
The LMR36006BQRNXRQ1 integrates thermal shutdown (170°C trip), input undervoltage lockout (via VCC LDO), cycle-by-cycle current limit (0.8–1.2 A high-side, 0.6–0.95 A low-side), and hiccup-mode short-circuit protection (94 ms off-time). These are explicitly listed in Section 1 Features and verified in Sections 7.5 and 7.7, ensuring robust operation in automotive environments with variable load and fault conditions.
LMR36006BQRNXRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-PowerVFQFN
- 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):
- 4.2V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 57V
- Current - Output:
- 600mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-VQFN-HR (3x2)
LMR36006BQRNXRQ1 FAQ
1.How can I place an order for LMR36006BQRNXRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR36006BQRNXRQ1 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 LMR36006BQRNXRQ1 reliable?
The price and inventory of LMR36006BQRNXRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR36006BQRNXRQ1 is usually 5 days.
3.What payment methods are accepted for LMR36006BQRNXRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR36006BQRNXRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR36006BQRNXRQ1?
LMR36006BQRNXRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR36006BQRNXRQ1 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 LMR36006BQRNXRQ1?
For technical support, including LMR36006BQRNXRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR36006BQRNXRQ1 requirements.
6.How does Aetrix verify that LMR36006BQRNXRQ1 is sourced from the original manufacturer or authorized distributors?
All LMR36006BQRNXRQ1 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 LMR36006BQRNXRQ1 meets industry standards.
7.What is the process for return or replacement of LMR36006BQRNXRQ1?
All LMR36006BQRNXRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMR36006BQRNXRQ1, 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 LMR36006BQRNXRQ1 part is unused and in its original packaging.
Return procedure for LMR36006BQRNXRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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