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Texas Instruments LMR16006YQDDCRQ1
- Part No.:
- LMR16006YQDDCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LMR16006YQDDCRQ1.pdf
- Description:
- IC REG BUCK ADJ 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,832
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Product details
Overview
LMR16006YQDDCRQ1 from Texas Instruments is an automotive-grade synchronous buck DC-DC regulator delivering up to 600 mA output current with fixed 2.1 MHz switching frequency, 0.765 V feedback reference, and ultra-low 28 µA standby current in ECO mode. It operates from 4 V to 40 V input, supports high duty cycle (97%), and integrates internal compensation and soft-start for compact power supply designs in vehicle infotainment and body control modules.
For engineers reviewing the LMR16006YQDDCRQ1 datasheet, LMR16006YQDDCRQ1 pinout, LMR16006YQDDCRQ1 application, or LMR16006YQDDCRQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (-40°C to +125°C), 1 µA shutdown current, integrated boot diode, and SOT-6L package compatibility with space-constrained automotive PCB layouts.
Technical Context
The LMR16006YQDDCRQ1 uses peak current-mode control with a fixed 2.1 MHz oscillator, enabling stable regulation with minimal external components. Its internal error amplifier compares FB voltage against a 0.765 V reference, driving COMP node voltage to modulate high-side MOSFET on-time based on load and line conditions.
Bootstrap operation relies on CB–SW capacitor charging during low-side conduction; CB-to-SW UVLO (3 V threshold) enables 97% maximum duty cycle while ensuring gate drive integrity. Thermal shutdown triggers at 170°C with 10°C hysteresis, and overcurrent protection clamps COMP voltage to limit peak switch current to 1200–1700 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 40 V - supports wide automotive battery range including cold-crank transients up to 65 V |
| Output Current | 600 mA - sufficient for powering microcontrollers, sensors, and interface ICs in distributed systems |
| Switching Frequency | 2.1 MHz (±15%) - enables use of small 6.8 µH inductors and 10 µF ceramic output capacitors |
| Feedback Reference | 0.765 V (±2.3%) - sets output voltage via external resistor divider; enables adjustable or fixed 3.3 V/5 V outputs |
| Quiescent Current | 28 µA in ECO mode - extends battery life in always-on vehicle modules such as telematics and door controllers |
| Shutdown Current | 1 µA - minimizes leakage during system sleep states without requiring external disconnect switches |
| Thermal Shutdown | 170°C trip, 160°C recovery - protects against sustained overload or poor heatsinking in sealed enclosures |
Pinout & Package
LMR16006YQDDCRQ1 is housed in a thermally enhanced SOT-6L (DDC) package measuring 2.9 mm × 1.6 mm × 1.0 mm, optimized for surface-mount assembly and thermal dissipation on 2 oz copper PCBs (RθJA = 102°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB | Bootstrap bias supply | Connects external 100 nF ceramic capacitor to SW; supplies gate drive voltage for internal high-side MOSFET |
| GND | Power ground reference | Primary return path for input/output currents and internal circuitry; must be low-impedance connection to PCB ground plane |
| FB | Feedback input | Senses output voltage via resistor divider; regulates output by maintaining 0.765 V at this pin |
| SHDN | Enable/disable control | High-voltage tolerant input (up to 65 V); pull below 1.25 V to disable; floating or >1.25 V enables operation |
| VIN | Main power input | Supplies internal bias and drives high-side MOSFET drain; accepts 4–40 V with transient tolerance to 65 V |
| SW | Switch node | Connects to inductor, catch diode, and CB capacitor; carries high dv/dt switching waveform and pulsed current |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualified | Validated for automotive operation from –40°C to +125°C junction temperature, meeting stringent reliability requirements |
| Integrated Boot Diode | Eliminates need for external bootstrap diode, reducing BOM count and layout area in space-sensitive modules |
| ECO Mode Efficiency Optimization | Automatically enters pulse-skipping mode below ~80 mA inductor peak current, cutting quiescent draw to 28 µA |
| Overvoltage Transient Protection (OVTP) | Disables high-side switch if FB exceeds 108% of reference (0.826 V), limiting output overshoot during load dump recovery |
| Internal Soft-Start | Prevents inrush current by ramping COMP voltage over ~1 ms, eliminating need for external SS capacitor |
Applications
| Automotive Infotainment Power | Body Control Module Supply |
|---|---|
Use Scenario: Powers display controller, audio codec, and USB interface ICs in head unit systems with 12 V battery input. IC Role / Device Role / Timing Role: Primary 5 V/3.3 V step-down regulator providing clean, regulated rail with fast transient response to burst-mode processor loads. Use Value: 2.1 MHz switching enables compact 6.8 µH inductor and 10 µF ceramic output capacitor, reducing solution size by >40% vs. 500 kHz alternatives. | Use Scenario: Supplies microcontroller, CAN transceiver, and sensor signal conditioning circuits in door module or lighting control units. IC Role / Device Role / Timing Role: Always-on power source operating in ECO mode during vehicle sleep, drawing only 28 µA to preserve battery charge. Use Value: 1 µA shutdown current and AEC-Q100 qualification ensure compliance with OEM low-power standby requirements and long-term field reliability. |
| Industrial Telematics Tracker | Aftermarket GPS Navigation Unit |
Use Scenario: Converts vehicle battery voltage to stable 3.3 V for GNSS receiver, cellular modem, and flash memory in fleet management devices. IC Role / Device Role / Timing Role: High-input-voltage buck regulator supporting cold-crank (4.5 V) and load-dump (65 V) conditions per ISO 7637-2. Use Value: 40 V max input rating with transient tolerance to 65 V eliminates need for upstream TVS or LDO pre-regulator, simplifying front-end design. | Use Scenario: Powers LCD backlight driver, touch controller, and audio amplifier in plug-and-play dashboard navigation systems. IC Role / Device Role / Timing Role: Fixed-output 5 V regulator delivering 600 mA with <±3% regulation across temperature and line variations. Use Value: Internal compensation and soft-start allow full functionality with only 6 external components (inductor, diode, input/output caps, two feedback resistors), accelerating time-to-market. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMR14006QDDCRQ1 | 40 V input, 600 mA, 2.1 MHz, but rated for 140°C max junction temperature (Grade 0) | Targeted at under-hood applications exceeding +125°C ambient; not qualified to AEC-Q100 Grade 1 | Select when higher ambient temperature capability is required and Grade 1 qualification is not mandated |
| TPS54302DRCR | 6 V to 28 V input, 3 A output, 2.1 MHz, but lacks AEC-Q100 qualification and ECO mode | Suitable for non-automotive industrial or consumer systems needing higher current and wider VIN range | Choose when >600 mA output or lower input voltage start-up (<4 V) is needed, and automotive qualification is unnecessary |
Compared with LMR14006QDDCRQ1 and TPS54302DRCR, the LMR16006YQDDCRQ1 uniquely balances AEC-Q100 Grade 1 compliance, ultra-low ECO-mode quiescent current, and 40 V input capability in a 2.9 mm × 1.6 mm footprint-making it optimal for cost- and space-sensitive automotive subsystems where battery longevity and transient robustness are critical.
Availability
LMR16006YQDDCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, body control modules, and telematics trackers requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for LMR16006YQDDCRQ1 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for automotive, industrial, and personal electronics markets.
The LMR16006YQDDCRQ1 belongs to TI's SIMPLE SWITCHER® automotive buck regulator family, designed specifically for reliable, compact, and efficient DC-DC conversion in harsh automotive environments where wide input range, low quiescent current, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum input voltage rating for the LMR16006YQDDCRQ1?
The LMR16006YQDDCRQ1 has an absolute maximum input voltage rating of 65 V for transient conditions, with recommended continuous operation from 4 V to 40 V. This allows direct connection to automotive 12 V battery systems while surviving load-dump events per ISO 7637-2. The device incorporates overvoltage transient protection to prevent output overshoot during such transients, and its internal high-side MOSFET RDS(on) is specified at 900 mΩ under typical conditions.
Does the LMR16006YQDDCRQ1 require an external bootstrap diode?
No, the LMR16006YQDDCRQ1 integrates a bootstrap diode internally, eliminating the need for an external component between CB and VIN. This reduces bill-of-materials count and PCB area while improving reliability. The CB pin requires only a 100 nF ceramic capacitor connected to the SW pin to provide gate drive voltage for the internal high-side MOSFET, and the device monitors CB–SW voltage to maintain proper bootstrap operation up to 97% duty cycle.
How does ECO mode function in the LMR16006YQDDCRQ1?
ECO mode in the LMR16006YQDDCRQ1 activates automatically when output voltage remains regulated and peak inductor current falls below ~80 mA, reducing quiescent current to 28 µA. It operates via pulse-skipping rather than fixed-frequency PWM, minimizing switching and gate-drive losses at light loads. This feature is especially valuable in automotive always-on systems like telematics or alarm controllers, where extended battery life during vehicle sleep is critical-without requiring external control logic or mode-select pins.
What output voltage options are available for the LMR16006YQDDCRQ1?
The LMR16006YQDDCRQ1 is offered in three factory-configured versions: adjustable output (LMR16006YQDDCRQ1), fixed 3.3 V (LMR16006YQ3DDCRQ1), and fixed 5 V (LMR16006YQ5DDCRQ1). The adjustable version uses the FB pin with an external resistor divider referenced to its 0.765 V internal bandgap, enabling precise output setting from ~0.8 V upward. All variants share identical package, thermal performance, and AEC-Q100 qualification-only the feedback network differs.
Is the LMR16006YQDDCRQ1 pin-compatible with other members of the LMR160xx-Q1 family?
Yes, the LMR16006YQDDCRQ1 shares identical SOT-6L (DDC) pinout and package dimensions with LMR16006XQDDCRQ1 (X = blank, 3, or 5), enabling drop-in replacement across output voltage variants. Pin functions-CB, GND, FB, SHDN, VIN, SW-are consistent, and all electrical characteristics (quiescent current, shutdown current, switching frequency, thermal shutdown thresholds) are maintained across the family. This simplifies design reuse and inventory consolidation for automotive power supply variants.
LMR16006YQDDCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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):
- 4V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 0.765V
- Voltage - Output (Max):
- 38.8V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
LMR16006YQDDCRQ1 FAQ
1.How can I place an order for LMR16006YQDDCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR16006YQDDCRQ1 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 LMR16006YQDDCRQ1 reliable?
The price and inventory of LMR16006YQDDCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR16006YQDDCRQ1 is usually 5 days.
3.What payment methods are accepted for LMR16006YQDDCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR16006YQDDCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR16006YQDDCRQ1?
LMR16006YQDDCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR16006YQDDCRQ1 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 LMR16006YQDDCRQ1?
For technical support, including LMR16006YQDDCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR16006YQDDCRQ1 requirements.
6.How does Aetrix verify that LMR16006YQDDCRQ1 is sourced from the original manufacturer or authorized distributors?
All LMR16006YQDDCRQ1 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 LMR16006YQDDCRQ1 meets industry standards.
7.What is the process for return or replacement of LMR16006YQDDCRQ1?
All LMR16006YQDDCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMR16006YQDDCRQ1, 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 LMR16006YQDDCRQ1 part is unused and in its original packaging.
Return procedure for LMR16006YQDDCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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