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Texas Instruments LM536013QUDSXRQ1
- Part No.:
- LM536013QUDSXRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LM536013QUDSXRQ1.pdf
- Description:
- IC REG BUCK 3.3V 1A 10WSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
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Product details
Overview
LM536013QUDSXRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous buck DC/DC converter delivering a fixed 3.3-V output at up to 1000 mA, operating from 3.55 V to 36 V input with transient tolerance to 42 V, featuring 2.1-MHz fixed switching frequency, 23-µA quiescent current, and integrated RESET output - deployed in automotive camera modules requiring compact, high-reliability power conversion.
For engineers reviewing the LM536013QUDSXRQ1 datasheet, LM536013QUDSXRQ1 pinout, LM536013QUDSXRQ1 application, or LM536013QUDSXRQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade thermal and electrical specs, and real-world selection guidance for body electronics, ADAS, and infotainment subsystems.
Technical Context
The LM536013QUDSXRQ1 implements peak current mode control with internal compensation, enabling stable regulation across wide VIN (3.55–36 V) and load (0–1000 mA) ranges while maintaining 2.1-MHz fixed-frequency operation above the AM band. Its architecture supports seamless PWM/PFM transitions and achieves 3.3-V output regulation from as low as 3.8-V input.
It integrates a 3-V internal LDO for biasing, open-drain RESET with 4–8-ms delay and 24-µs glitch filtering, and SYNC/MODE pin supporting external clock synchronization (1.9–2.3 MHz), forced PWM, or AUTO mode with diode emulation - all qualified for –40°C to 125°C ambient (–40°C to 150°C junction).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% over full load and temperature range - ensures stable MCU/Sensor rail without external feedback resistors. |
| Max Output Current | 1000 mA continuous - supports high-current imaging sensors and SerDes interfaces in automotive cameras. |
| Input Voltage Range | 3.55 V to 36 V (transient to 42 V/100 ms) - eliminates need for upstream surge protection in 12-V/24-V vehicle systems. |
| Quiescent Current | 23 µA typical - enables always-on functionality in parking-mode camera systems without battery drain. |
| Switching Frequency | 2.1 MHz fixed (±10%) - allows use of sub-2.2-µH inductors and reduces EMI filter size; operates above AM band (0.53–1.71 MHz). |
| RESET Output | Open-drain with 4–8-ms delay and 24-µs glitch filter - provides reliable power-good signaling without external supervisor IC. |
| Junction Temp Range | –40°C to 150°C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin-mounted applications. |
Pinout & Package
LM536013QUDSXRQ1 uses a 10-pin WSON (DSX) package, 3.0 mm × 3.0 mm, with non-wettable flanks and exposed thermal pad (DAP) requiring direct connection to PCB ground plane for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance layout to minimize EMI. |
| 2 BOOT | High-side gate driver supply | Supplies bootstrap capacitor (100 nF) between SW and BOOT - critical for high-side MOSFET turn-on. |
| 3 VCC | Internal 3-V regulator output | Powers internal control circuitry; requires 1.0-µF ceramic cap to AGND - not connected to BIAS in fixed-output variants. |
| 4 FB | Feedback input | Direct connection to 3.3-V output node; internal reference sets regulation - no external divider needed. |
| 5 AGND | Analog ground reference | Ground reference for FB and internal error amplifier - must be star-connected near VCC capacitor. |
| 6 RESET | Open-drain reset output | Asserts low on fault or EN deactivation; requires external pull-up - provides system-level power-good status. |
| 7 EN | Enable input | Active-high logic input (1.7–2.0 V threshold); hysteresis prevents chatter - supports controlled startup sequencing. |
| 8 VIN | Main input supply | Accepts 3.55–36 V; bypassed with low-ESR capacitors directly to GND - primary path for input ripple current. |
| 9 SYNC/MODE | Mode control & sync input | Selects AUTO (diode emulation), FPWM, or external sync (1.9–2.3 MHz); tolerant to VIN - enables EMI reduction or system clock alignment. |
| 10 GND | Power ground | Primary return path for VIN, SW, and internal circuits - tied to DAP for thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation with HBM Class 2 and CDM Class C5 ESD robustness - suitable for front-end camera ECUs. |
| Integrated RESET with delay & filtering | Eliminates external supervisory IC by providing glitch-immune, time-delayed power-good signal - saves board space and BOM cost. |
| 2.1-MHz fixed-frequency operation | Enables compact magnetics and reduces input filter volume - critical for space-constrained camera modules and ADAS domain controllers. |
| Low 23-µA quiescent current | Supports >1-year battery standby in always-on vision systems without compromising wake-up responsiveness. |
| Non-wettable flank package | Facilitates automated optical inspection (AOI) during SMT assembly - improves yield in high-volume automotive manufacturing. |
Applications
| Automotive Camera Modules | ADAS Domain Controllers |
|---|---|
Use Scenario: Powering CMOS image sensors, ISP processors, and FPD-Link III serializers in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Primary 3.3-V buck regulator supplying core logic and interface rails with tight voltage accuracy and fast transient response. Use Value: Enables single-stage conversion from 12-V battery to 3.3-V rail, reducing component count and improving efficiency over LDO-based solutions. | Use Scenario: Providing clean, regulated 3.3-V power to radar pre-processing units and sensor fusion MCUs in centralized ADAS ECUs. IC Role / Device Role / Timing Role: High-reliability point-of-load regulator with RESET monitoring for safety-critical boot validation. Use Value: Meets ASIL-B functional safety requirements via AEC-Q100 qualification and deterministic power-good signaling. |
| Automotive Body Control Units | In-Cabin Infotainment Displays |
Use Scenario: Supplying microcontrollers, CAN transceivers, and LED drivers in door modules and seat control units. IC Role / Device Role / Timing Role: Main system power regulator handling cold-crank (3.55 V) and load-dump (42 V) transients without shutdown. Use Value: Wide input range and robust thermal design ensure uninterrupted operation during vehicle start-stop cycles. | Use Scenario: Powering touch controller ASICs and display timing controllers in digital instrument clusters and center displays. IC Role / Device Role / Timing Role: Low-noise, high-efficiency 3.3-V source synchronized to system clock via SYNC/MODE pin to reduce beat-frequency EMI. Use Value: 2.1-MHz operation avoids AM radio band interference, meeting CISPR-25 Class 5 EMC requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM536013QDSXRQ1 | Same 3.3-V fixed output and 1-A rating, but uses wettable flank WSON package - optimized for solder joint inspection. | Preferred where AOI is not required and standard reflow process suffices; identical electrical behavior. | Select LM536013QUDSXRQ1 only when non-wettable flanks are mandated for automated optical inspection in Tier 1 production. |
| TPS543320RTWR | 3.3-V, 3-A output; 2.2-MHz switching; supports PMBus; higher IQ (45 µA); different pinout and package (16-pin QFN). | Suitable for higher-current or digitally configurable systems; not AEC-Q100 qualified - limited to non-safety-critical infotainment. | Choose TPS543320RTWR only if >1-A load, digital telemetry, or multi-rail coordination is required - not a drop-in replacement. |
Compared with LM536013QDSXRQ1, LM536013QUDSXRQ1 trades wettable flanks for AOI compatibility without electrical change; versus TPS543320RTWR, it offers AEC-Q100 qualification and lower IQ at half the output current, making it optimal for cost-sensitive, safety-compliant 1-A automotive camera rails.
Availability
LM536013QUDSXRQ1 is available at Aetrix Electronics and suitable for automotive camera modules, ADAS domain controllers, and body control units requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LM536013QUDSXRQ1 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.
The LM53600/01-Q1 product line delivers high-efficiency, small-footprint DC/DC converters engineered specifically for automotive power rails - targeting camera, radar, and infotainment systems demanding AEC-Q100 reliability and low quiescent current.
FAQ
What is the maximum output current capability of the LM536013QUDSXRQ1?
The LM536013QUDSXRQ1 supports a maximum continuous output current of 1000 mA. This rating is validated across the full AEC-Q100 Grade 1 ambient temperature range (–40°C to 125°C) and accounts for thermal derating at elevated junction temperatures. The device maintains regulation and specified electrical performance up to this load when used with appropriate PCB copper area and thermal vias under the DAP.
Does the LM536013QUDSXRQ1 require external feedback resistors for its 3.3-V output?
No, the LM536013QUDSXRQ1 features a factory-trimmed, fixed 3.3-V output. Its FB pin connects directly to the output node with no external resistor divider required. Internal precision voltage reference and feedback network ensure ±2% output accuracy over temperature and load - simplifying layout and reducing BOM count compared to adjustable regulators.
How does the RESET output of the LM536013QUDSXRQ1 function during startup and fault conditions?
The LM536013QUDSXRQ1 RESET output is an open-drain signal that remains low for 4–8 ms after EN goes high, then transitions high when output voltage reaches 92–110% of nominal 3.3 V. It asserts low again during undervoltage, overtemperature (>151°C), or EN deactivation. A 24-µs internal glitch filter prevents false triggering from noise - eliminating need for external RC networks.
Can the LM536013QUDSXRQ1 operate during cold-crank conditions in automotive systems?
Yes, the LM536013QUDSXRQ1 supports input voltages as low as 3.55 V after startup and 3.8 V at full 1000-mA load - meeting ISO 16750-2 cold-crank requirements. Its UVLO rising threshold is 3.2–3.75 V with 0.2–0.35 V hysteresis, ensuring reliable restart once battery voltage recovers. This enables uninterrupted operation in engine-start scenarios where system voltage dips below 6 V.
What thermal management considerations apply to the LM536013QUDSXRQ1's exposed pad (DAP)?
The LM536013QUDSXRQ1's DAP must be soldered to a solid PCB ground plane using ≥4 thermal vias (0.3-mm diameter, spaced ≤1 mm apart) to achieve the specified RθJB of 20.9°C/W. The DAP serves exclusively for thermal conduction - no electrical connection is required or recommended. Insufficient thermal relief increases junction temperature, potentially triggering thermal shutdown at 151–185°C.
LM536013QUDSXRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- 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):
- 3.55V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-WSON (3x3)
LM536013QUDSXRQ1 FAQ
1.How can I place an order for LM536013QUDSXRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM536013QUDSXRQ1 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 LM536013QUDSXRQ1 reliable?
The price and inventory of LM536013QUDSXRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM536013QUDSXRQ1 is usually 5 days.
3.What payment methods are accepted for LM536013QUDSXRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM536013QUDSXRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM536013QUDSXRQ1?
LM536013QUDSXRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM536013QUDSXRQ1 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 LM536013QUDSXRQ1?
For technical support, including LM536013QUDSXRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM536013QUDSXRQ1 requirements.
6.How does Aetrix verify that LM536013QUDSXRQ1 is sourced from the original manufacturer or authorized distributors?
All LM536013QUDSXRQ1 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 LM536013QUDSXRQ1 meets industry standards.
7.What is the process for return or replacement of LM536013QUDSXRQ1?
All LM536013QUDSXRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM536013QUDSXRQ1, 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 LM536013QUDSXRQ1 part is unused and in its original packaging.
Return procedure for LM536013QUDSXRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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