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Texas Instruments LM536015QUDSXRQ1
- Part No.:
- LM536015QUDSXRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LM536015QUDSXRQ1.pdf
- Description:
- IC REG BUCK 5V 1A 10WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,282
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Product details
Overview
LM536015QUDSXRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous buck DC/DC converter delivering a fixed 5-V output at up to 1000 mA, operating from 3.55 V to 36 V input with transient tolerance to 42 V, 2.1-MHz fixed switching frequency, and 23-µA quiescent current - deployed in ADAS camera power rails.
For engineers reviewing the LM536015QUDSXRQ1 datasheet, LM536015QUDSXRQ1 pinout, LM536015QUDSXRQ1 application, or LM536015QUDSXRQ1 equivalent, this page delivers verified electrical specs, validated WSON-10 package mapping, confirmed automotive thermal performance (–40°C to 150°C junction), and real-world design constraints for camera and body control modules.
Technical Context
The LM536015QUDSXRQ1 implements peak current mode control with internal compensation, enabling stable regulation across wide VIN/VOUT ratios - including 3.8 V → 5 V startup and 18 V → 3.3 V conversion at 2.1 MHz. Its architecture supports seamless PWM/PFM transitions and diode emulation in AUTO mode via SYNC/MODE pin logic.
It integrates a 3-V internal LDO (VCC), open-drain RESET with 4–8 ms delay and ±3% hysteresis, thermal shutdown at 151–185°C, and non-wettable flank WSON-10 packaging optimized for automotive reflow and optical inspection. Spread spectrum is disabled when SYNC/MODE receives an external clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±1.5% over full temperature and load range - ensures stable MCU/Sensor bias without external feedback resistors. |
| Max Output Current | 1000 mA continuous - supports dual-camera modules or radar pre-regulation stages without derating at 125°C ambient. |
| Input Voltage Range | 3.55 V to 36 V (transient to 42 V/100 ms) - eliminates need for upstream TVS or load switch in 12-V automotive systems. |
| Switching Frequency | 2.1 MHz ±10% - enables use of ≤2.2-µH inductors and avoids AM-band EMI, reducing filter size and cost. |
| Quiescent Current | 23 µA typical - sustains always-on functionality (e.g., parking camera wake-up) while meeting ISO 16750-2 sleep current requirements. |
| Shutdown Current | 1.8 µA at 25°C - meets automotive battery drain limits for extended key-off periods. |
| Junction Temperature | –40°C to 150°C - qualified for under-hood and headlamp applications with no derating up to 125°C ambient. |
Pinout & Package
LM536015QUDSXRQ1 uses a 10-pin WSON (DSX) package, 3.0 mm × 3.0 mm, with non-wettable flanks for automated optical inspection (AOI) compatibility and robust solder joint reliability in automotive thermal cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node | Connects directly to inductor; high dv/dt node requiring tight layout to minimize EMI and ringing. |
| 2 BOOT | High-side gate driver supply | Requires 100-nF ceramic capacitor between BOOT and SW to sustain gate drive during high-side conduction. |
| 3 VCC | Internal 3-V regulator output | Powers internal control circuitry; requires 1.0-µF bypass capacitor to AGND (fixed version). |
| 4 FB | Feedback input (5-V fixed) | Internally connected to 5-V divider; serves as VCC bias source - no external resistor network needed. |
| 5 AGND | Analog ground reference | Ground reference for FB and internal error amplifier; must be star-connected to power ground near DAP. |
| 6 RESET | Open-drain reset output | Asserts low on UVLO, thermal shutdown, or EN deactivation; requires external pull-up for system monitoring. |
| 7 EN | Enable input | Active-high logic; threshold 1.7–2.0 V with 0.4–0.55 V hysteresis - compatible with microcontroller GPIO or ignition-sense signals. |
| 8 VIN | Main input supply | Accepts 3.55–36 V; requires local 10-µF ceramic + bulk capacitor; transient-rated to 42 V/100 ms. |
| 9 SYNC/MODE | Mode selection & sync input | Tied low = AUTO mode (PFM/PWM); tied high = forced PWM; driven externally = sync to 1.9–2.3 MHz clock. |
| 10 GND | Power ground | Primary return path for high-current loops; must be solidly connected to exposed thermal pad (DAP). |
| DAP | Thermal pad (exposed) | Electrically isolated ground connection; mandatory solder mask opening and thermal vias to inner ground plane for <46.2°C/W θJA. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation with HBM ±2000 V and CDM ±750 V ESD robustness - meets automotive electronics reliability standards. |
| Integrated RESET with filtering | 4–8 ms delay and 24-µs glitch filter eliminate need for external supervisor IC, saving BOM cost and PCB area in camera ECU designs. |
| Non-wettable flank WSON package | Enables AOI-compatible solder joint inspection without post-reflow cleaning - critical for zero-defect automotive manufacturing. |
| 2.1-MHz fixed-frequency operation | Permits compact 2.2-µH inductors and small ceramic output capacitors, reducing solution footprint by >30% vs. 500-kHz converters. |
| Low dropout capability | Regulates 5 V output from as low as 5.5 V input (VDROP1 = 0.6 V), supporting cold-crank scenarios down to 6 V battery voltage. |
Applications
| Automotive Camera Power Supply | ADAS Domain Controller Pre-regulator |
|---|---|
|
Use Scenario: Powers image sensor, ISP, and interface circuitry in rear-view or surround-view camera modules exposed to engine bay temperatures. IC Role / Device Role / Timing Role: Primary 5-V buck regulator supplying clean, low-noise power with fast transient response to handle burst-mode sensor readouts. Use Value: 23-µA IQ enables always-on wake-on-motion functionality; 150°C junction rating allows placement near heat sources without derating. |
Use Scenario: Generates stable 5-V rail for SoC I/O, PCIe switches, and SerDes PHYs in centralized ADAS domain controllers. IC Role / Device Role / Timing Role: High-efficiency pre-regulator stepping down 12-V vehicle bus to 5 V before point-of-load converters. Use Value: 2.1-MHz switching avoids AM-band interference; 1000-mA capability supports multi-lane MIPI CSI-2 and Ethernet AVB interfaces. |
| Automotive Body Control Module (BCM) | Electronic Mirror Power Management |
|
Use Scenario: Supplies 5-V logic and actuator drivers in door modules, seat controls, and lighting ECUs subject to load dump transients. IC Role / Device Role / Timing Role: Robust front-end regulator handling 42-V transients and reverse-battery protection via external FET control. Use Value: 42-V transient tolerance eliminates need for external TVS; RESET output provides fault signaling to main BCM microcontroller. |
Use Scenario: Powers electrochromic dimming circuitry and display drivers in auto-dimming rearview mirrors with low standby power. IC Role / Device Role / Timing Role: Always-on 5-V supply maintaining mirror state during ignition-off; synchronized via SYNC/MODE to reduce EMI in cabin RF environment. Use Value: 1.8-µA shutdown current meets OEM <5-µA sleep budget; non-wettable flanks ensure AOI pass rate in high-volume mirror assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM536015QDSXRQ1 | Same 5-V fixed output and 1000-mA rating, but with wettable flanks - lacks AOI compatibility for high-reliability automotive lines. | Preferred for non-AOI production or legacy reflow processes where solder joint inspection uses X-ray instead of optical methods. | Select only if AOI is not required and cost sensitivity favors standard wettable variant. |
| TPS62130AQRTJRQ1 | 3-V to 17-V input, 3-A output, 2.25-MHz switching - higher current but narrower VIN range and no 42-V transient support. | Suitable for interior modules (e.g., infotainment) with stable 12-V supply, but not for engine bay or load-dump-prone locations. | Choose when higher output current is needed and input transients are controlled; verify thermal performance at 150°C junction. |
Compared with LM536015QUDSXRQ1, LM536015QDSXRQ1 trades AOI capability for broader process compatibility, while TPS62130AQRTJRQ1 offers higher current at the expense of transient robustness - making LM536015QUDSXRQ1 optimal for safety-critical, thermally demanding camera and radar power rails.
Availability
LM536015QUDSXRQ1 is available at Aetrix Electronics and suitable for automotive camera systems, ADAS domain controllers, and body control modules requiring stable component supply with AEC-Q100 compliance and long-term lifecycle assurance.
Supply support for LM536015QUDSXRQ1 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 and embedded processing technologies, with deep expertise in automotive-grade power management ICs.
LM536015QUDSXRQ1 belongs to TI's automotive-qualified DC/DC buck regulator product line, engineered specifically for high-reliability, thermally constrained environments such as camera modules and radar sensors.
FAQ
What is the maximum input voltage transient rating for LM536015QUDSXRQ1?
The LM536015QUDSXRQ1 supports input transients up to 42 V for durations ≤100 ms at a duty cycle ≤1%, as specified in Absolute Maximum Ratings. This enables direct connection to automotive 12-V battery rails without external transient suppression components in most load-dump scenarios.
Does LM536015QUDSXRQ1 require external feedback resistors for its 5-V output?
No, LM536015QUDSXRQ1 is a fixed 5-V output device with internal feedback divider. The FB pin is internally connected to the 5-V regulation node and also supplies bias to the VCC regulator - no external resistors or compensation network is needed.
How does the RESET output of LM536015QUDSXRQ1 behave during startup and fault conditions?
The LM536015QUDSXRQ1 RESET output remains low until the output reaches 92–97% of nominal 5 V, then releases high after a 4–8 ms delay. It asserts low again during UVLO, thermal shutdown (>151°C), or EN deactivation - providing reliable system-level power-good signaling.
What is the purpose of the non-wettable flanks on the LM536015QUDSXRQ1 WSON package?
The non-wettable flanks on LM536015QUDSXRQ1 enable automated optical inspection (AOI) of solder joints during SMT assembly. Unlike wettable flanks, they prevent solder wicking up the side walls, allowing machine vision systems to accurately assess fillet shape and voiding - critical for zero-defect automotive manufacturing.
Can LM536015QUDSXRQ1 operate in forced PWM mode, and how is it enabled?
Yes, LM536015QUDSXRQ1 supports forced PWM mode. Tie the SYNC/MODE pin ≥1.5 V (e.g., to VIN via resistor) to activate FPWM - disabling PFM diode emulation and ensuring constant 2.1-MHz switching regardless of load, improving EMI predictability in noise-sensitive camera applications.
LM536015QUDSXRQ1 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):
- 5V
- 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)
LM536015QUDSXRQ1 FAQ
1.How can I place an order for LM536015QUDSXRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM536015QUDSXRQ1 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 LM536015QUDSXRQ1 reliable?
The price and inventory of LM536015QUDSXRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM536015QUDSXRQ1 is usually 5 days.
3.What payment methods are accepted for LM536015QUDSXRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM536015QUDSXRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM536015QUDSXRQ1?
LM536015QUDSXRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM536015QUDSXRQ1 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 LM536015QUDSXRQ1?
For technical support, including LM536015QUDSXRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM536015QUDSXRQ1 requirements.
6.How does Aetrix verify that LM536015QUDSXRQ1 is sourced from the original manufacturer or authorized distributors?
All LM536015QUDSXRQ1 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 LM536015QUDSXRQ1 meets industry standards.
7.What is the process for return or replacement of LM536015QUDSXRQ1?
All LM536015QUDSXRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM536015QUDSXRQ1, 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 LM536015QUDSXRQ1 part is unused and in its original packaging.
Return procedure for LM536015QUDSXRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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