My Inquiry
My Account
Texas Instruments LMR16006YQ3DDCTQ1
- Part No.:
- LMR16006YQ3DDCTQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LMR16006YQ3DDCTQ1.pdf
- Description:
- IC REG BUCK 3.3V 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,340
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMR16006YQ3DDCTQ1 from Texas Instruments is an automotive-grade synchronous buck DC-DC regulator delivering up to 600 mA output current with fixed 3.3 V output, 2.1 MHz switching frequency, 4–40 V input range, and 28 µA ECO-mode quiescent current. It integrates high-side MOSFET, bootstrap regulator, and internal compensation for compact power conversion in vehicle infotainment and body control modules.
For engineers reviewing the LMR16006YQ3DDCTQ1 datasheet, LMR16006YQ3DDCTQ1 pinout, LMR16006YQ3DDCTQ1 application, or LMR16006YQ3DDCTQ1 equivalent, key selection considerations include AEC-Q100 Grade 1 qualification (-40°C to +125°C), 97% maximum duty cycle support, integrated boot diode, and 0.765 V feedback reference for precision output regulation.
Technical Context
The LMR16006YQ3DDCTQ1 employs constant-frequency peak current mode control with internal slope compensation and leading-edge blanking for stable transient response. Its integrated high-side MOSFET features 900 mΩ typical RDS(on), while the bootstrap circuit (CB–SW) enables high-duty-cycle operation up to 97% when CB-to-SW voltage remains above 3 V.
It implements ECO mode below ~80 mA inductor peak current to reduce switching losses, entering ultra-low 28 µA quiescent current state while maintaining regulation. Thermal shutdown triggers at 170°C with 10°C hysteresis, and overvoltage transient protection (OVTP) clamps high-side switch if FB exceeds 108% of 0.765 V reference to limit output overshoot during load unload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 40 V - supports wide automotive battery rail including cold-crank (4 V) and load-dump transients (up to 65 V absolute max) |
| Output Voltage | Fixed 3.3 V ±3% - factory-trimmed for precision without external resistor divider |
| Max Output Current | 600 mA - sufficient for microcontrollers, sensors, and CAN transceivers in distributed ECUs |
| Switching Frequency | 2.1 MHz (±15%) - enables use of sub-10 µH inductors and <10 µF ceramic output capacitors |
| Quiescent Current | 28 µA in ECO mode - extends battery runtime in always-on vehicle modules like telematics |
| Feedback Reference | 0.765 V (±2.3%) - sets output accuracy and enables adjustable variants via external resistors |
| Shutdown Current | 1 µA - minimizes leakage during system sleep states |
| Thermal Shutdown | 170°C trip, 160°C recovery - protects against sustained overload or poor PCB thermal design |
Pinout & Package
LMR16006YQ3DDCTQ1 is housed in a thermally enhanced SOT-6L (DDC) package measuring 2.9 mm × 1.6 mm × 1.0 mm, optimized for high-power-density automotive layouts with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB (Pin 1) | Bootstrap capacitor connection | Provides gate drive voltage for internal high-side MOSFET; requires 100 nF ceramic capacitor between CB and SW |
| GND (Pin 2) | Power and signal ground reference | Primary return path for input, output, and internal bias currents; must be low-impedance connection to PCB ground plane |
| FB (Pin 3) | Feedback input | Monitors regulated output via internal 0.765 V reference; unused in fixed 3.3 V version but internally connected |
| SHDN (Pin 4) | Enable/disable control | High-voltage tolerant input (0–40 V); pulled high internally; <1.25 V disables regulator and reduces current to 1 µA |
| VIN (Pin 5) | Main power input | Supplies internal LDO and high-side MOSFET drain; accepts 4–40 V with transient rating up to 65 V |
| SW (Pin 6) | Switch node | Connects to inductor, catch diode (or sync FET), and CB capacitor; carries high dv/dt switching waveform |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualified | Validated for automotive operation from –40°C to +125°C junction temperature with full reliability testing |
| Integrated Bootstrap Diode | Eliminates external boot diode, reducing BOM count and layout area while improving startup reliability |
| ECO Mode with 28 µA IQ | Automatically transitions to pulse-skipping at light loads to maintain >85% efficiency down to 1 mA output |
| Overvoltage Transient Protection (OVTP) | Clamps high-side switch when FB exceeds 108% of 0.765 V, limiting output overshoot during rapid load release |
| Internal Soft-Start | 1.2 ms typical ramp time prevents inrush current and stabilizes output during power-up without external components |
| 97% Max Duty Cycle Support | Enables operation with VIN as low as 3.4 V for 3.3 V output, critical for automotive cold-crank conditions |
Applications
| Infotainment Power Supply | ADAS Camera Module |
|---|---|
Use Scenario: Powers display controller, touch interface IC, and audio codec in automotive head units with variable battery input. IC Role / Device Role / Timing Role: Primary 3.3 V point-of-load regulator converting 12 V battery to clean, low-noise supply for mixed-signal SoCs. Use Value: 2.1 MHz switching avoids AM radio band interference; ECO mode maintains efficiency during standby screen states. | Use Scenario: Supplies image sensor, ISP, and serializer in rear-view or surround-view camera systems. IC Role / Device Role / Timing Role: Compact, thermally robust buck converter delivering stable 3.3 V under engine bay temperature extremes. Use Value: AEC-Q100 Grade 1 qualification ensures reliability at +125°C junction; 65 V transient tolerance withstands load-dump events. |
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
Use Scenario: Powers door module MCU, LIN transceivers, and LED drivers in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Always-on 3.3 V regulator supporting wake-on-LIN functionality with ultra-low 28 µA ECO current. Use Value: 1 µA shutdown current extends backup battery life; high-duty-cycle capability sustains output during cranking dips to 4 V. | Use Scenario: Provides main 3.3 V rail for cellular modem, GNSS receiver, and secure element in connected vehicle gateways. IC Role / Device Role / Timing Role: High-efficiency buck regulator enabling long-term LTE connectivity with minimal thermal impact on sealed enclosures. Use Value: Internal compensation simplifies layout; small SOT-6L footprint saves space in multi-rail power management subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMR14006Q3DDCTQ1 | 40 V input, 600 mA, 2.1 MHz, same SOT-6L package but higher RDS(on) (1.2 Ω vs 0.9 Ω) and 35 µA ECO current | Slightly lower efficiency at full load; identical AEC-Q100 Grade 1 qualification and pinout | Preferred where cost sensitivity outweighs 5 µA IQ difference and thermal margin is adequate |
| TPS62130AQRTJRQ1 | 3–17 V input, 3 A output, 2.5 MHz, QFN-16 package; includes I2C programmability and power-good flag | Higher current, wider feature set, but larger footprint and incompatible pinout; requires external compensation | Selected when system demands >600 mA, digital control, or PG monitoring - not drop-in replacement |
Compared with LMR16006YQ3DDCTQ1, LMR14006Q3DDCTQ1 offers identical form-factor and function at modest efficiency trade-off, while TPS62130AQRTJRQ1 provides scalability and intelligence at the cost of board area and design complexity.
Availability
LMR16006YQ3DDCTQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMR16006YQ3DDCTQ1 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, embedded processing, and connectivity technologies for automotive, industrial, and consumer markets.
The LMR16006YQ3DDCTQ1 belongs to TI's SIMPLE SWITCHER® automotive buck regulator family, engineered specifically for reliable, compact, and efficient DC-DC conversion in harsh-temperature vehicle environments.
FAQ
What is the operating junction temperature range for LMR16006YQ3DDCTQ1?
The LMR16006YQ3DDCTQ1 is qualified per AEC-Q100 Grade 1 with a specified operating junction temperature range of –40°C to +125°C. This rating is validated through accelerated stress testing and ensures functional reliability under continuous automotive under-hood conditions. The device incorporates thermal shutdown at 170°C with 10°C hysteresis to prevent permanent damage during abnormal operation. LMR16006YQ3DDCTQ1 must be mounted on a PCB with adequate copper pour and thermal vias to maintain TJ ≤125°C at full 600 mA load.
Does LMR16006YQ3DDCTQ1 require external compensation components?
No, LMR16006YQ3DDCTQ1 features fully internal compensation, eliminating the need for external RC networks on the COMP or FB pins. This simplifies design, reduces bill-of-materials count, and improves production consistency. The internal compensation is optimized for stability with standard 6.8 µH inductors and 10 µF ceramic output capacitors across the full 4–40 V input range. LMR16006YQ3DDCTQ1 achieves phase margin >45° and gain margin >10 dB under all recommended operating conditions without user adjustment.
How does the ECO mode in LMR16006YQ3DDCTQ1 improve light-load efficiency?
LMR16006YQ3DDCTQ1 enters ECO mode automatically when inductor peak current falls below ~80 mA, transitioning from fixed-frequency PWM to pulse-frequency modulation (PFM) to minimize switching and gate-drive losses. This reduces quiescent current to 28 µA while maintaining tight output regulation. Efficiency remains above 85% at 1 mA load and exceeds 90% at 10 mA - critical for always-on automotive modules. LMR16006YQ3DDCTQ1 exits ECO mode seamlessly when load increases, resuming 2.1 MHz operation without output disturbance.
Can LMR16006YQ3DDCTQ1 operate with input voltage as low as 4 V while delivering 3.3 V output?
Yes, LMR16006YQ3DDCTQ1 supports 97% maximum duty cycle, enabling operation with VIN as low as 3.4 V (3.3 V ÷ 0.97) while sustaining regulated 3.3 V output. At 4 V input, the device delivers full 600 mA with typical efficiency >88%. This capability is essential for automotive cold-crank scenarios where battery voltage drops to 4 V. The internal boot UVLO and wimp-FET refresh ensure reliable high-duty-cycle operation without external circuitry. LMR16006YQ3DDCTQ1 maintains regulation down to 4 V input across its full temperature range.
What protection features are integrated into LMR16006YQ3DDCTQ1?
LMR16006YQ3DDCTQ1 integrates cycle-by-cycle overcurrent protection (1.2–1.7 A peak limit), thermal shutdown (170°C trip, 160°C recovery), overvoltage transient protection (OVTP) that disables the high-side switch if FB exceeds 108% of 0.765 V, and input undervoltage lockout (UVLO) with 4 V rising threshold. All protections are fully internal - no external components required. The device also includes internal soft-start (1.2 ms) and ESD ratings of ±2000 V HBM and ±500 V CDM per AEC-Q100. LMR16006YQ3DDCTQ1 latches off only during thermal fault; all other protections are auto-recovering.
LMR16006YQ3DDCTQ1 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- 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
LMR16006YQ3DDCTQ1 FAQ
1.How can I place an order for LMR16006YQ3DDCTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR16006YQ3DDCTQ1 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 LMR16006YQ3DDCTQ1 reliable?
The price and inventory of LMR16006YQ3DDCTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR16006YQ3DDCTQ1 is usually 5 days.
3.What payment methods are accepted for LMR16006YQ3DDCTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR16006YQ3DDCTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR16006YQ3DDCTQ1?
LMR16006YQ3DDCTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR16006YQ3DDCTQ1 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 LMR16006YQ3DDCTQ1?
For technical support, including LMR16006YQ3DDCTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR16006YQ3DDCTQ1 requirements.
6.How does Aetrix verify that LMR16006YQ3DDCTQ1 is sourced from the original manufacturer or authorized distributors?
All LMR16006YQ3DDCTQ1 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 LMR16006YQ3DDCTQ1 meets industry standards.
7.What is the process for return or replacement of LMR16006YQ3DDCTQ1?
All LMR16006YQ3DDCTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMR16006YQ3DDCTQ1, 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 LMR16006YQ3DDCTQ1 part is unused and in its original packaging.
Return procedure for LMR16006YQ3DDCTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMR16006YQ3DDCTQ1 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
