Summary of TEXAS INSTRUMENTS LMR360XX/LMR360XX-Q1 STEP-DOWN CONVERTERS
The Texas Instruments LMR360xx/LMR360xx-Q1 are industrial and automotive synchronous step-down DC/DC converters offering 0.6A or 1.5A output currents over a 4.2V to 60V input range. These devices feature HotRod™ QFN packaging, peak-current-mode control, and advanced protection mechanisms like thermal shutdown and hiccup short-circuit protection. They deliver high efficiency up to 94% with low quiescent current, making them ideal for scalable power supplies requiring compact size and reliability in harsh environments.
Parts used in the LMR360xx/LMR360xx-Q1 Project:
- LMR36006 Step-Down Converter
- LMR36006-Q1 Automotive Step-Down Converter
- LMR36015 Step-Down Converter
- LMR36015-Q1 Automotive Step-Down Converter
- LMR33620-Q1 Scalable Power Supply Component
- LMR33630-Q1 Scalable Power Supply Component
- HotRod™ QFN Package
- Integrated High-Side Power MOSFET
- Integrated Low-Side Power MOSFET
Operating input range from 4.2V to 60V. 2mm x 3mm HotRod™ QFN package. Junction temperature range from -40°C to 150°C. 26µA quiescent current. The list of amazing features is long. And that’s before you see the eye-popping efficiency plots. LMR36006/15 are the industrial buck converters you’ve been looking for.
Texas Instruments LMR360xx/LMR360xx-Q1 Step-Down Converters are an easy-to-use, synchronous, step-down DC/DC converter with integrated high-side and low-side power MOSFETs. These devices provide up to 0.6A (LMR36006/LMR36006-Q1) or 1.5A (LMR36015/LMR36015-Q1) of output current that is delivered over a wide input voltage range of 4.2V to 60V. Tolerance goes up to 66V. The LMR360xx/LMR360xx-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Advanced high-speed circuitry allows the LMR360xx/LMR360xx-Q1 to regulate from an input of 20V to an output of 5V at a fixed frequency of 2.1MHz. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.
Features
- AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1: –40°C to +125°C, TA
- Designed for Automotive Applications
- Junction Temperature Range –40°C to +150°C
- Protection Features: Thermal Shutdown, Input Undervoltage Lockout, Cycle-by-Cycle Current Limit, Hiccup Short-Circuit Protection
- Spread-Spectrum Frequency Modulation
- HotRod™ Package Enables Low EMI and Minimized Switch Node Ringing
- 0.2V Dropout With 0.6A Load (Typical)
- ±1.5% Reference Voltage Tolerance
- 3.3V Fixed Output Voltage Option Available
- Suited for Scalable Power Supplies
- Pin Compatible With
- LMR36015-Q1 (60V, 1.5A)
- LMR33620/30-Q1 (36V, 2A or 3A)
- 400kHz, 2.1MHz Frequency Options
- Integration Reduces Solution Size and Cost
- Small, 2mm×3mm VQFN Package with Wettable Flanks
- Few External Components
- Low Power Dissipation Across Load Spectrum
- 94% Efficiency at 400kHz (12VIN, 5VOUT, 0.6A)
- Increased Light Load Efficiency in PFM
- Low Operating Quiescent Current of 26µA
- Small, 2mm×3mm VQFN Package with Wettable Flanks
- Pin Compatible With
Read more: TEXAS INSTRUMENTS LMR360XX/LMR360XX-Q1 STEP-DOWN CONVERTERS
- What is the operating input voltage range?
The device operates from 4.2V to 60V with tolerance up to 66V. - How much output current does the LMR36015 provide?
The LMR36015 delivers up to 1.5A of output current. - Does this converter support automotive applications?
Yes, the -Q1 versions are AEC-Q100 qualified for automotive use. - What is the junction temperature range?
The junction temperature range is from -40°C to +150°C. - How efficient is the converter at specific loads?
It achieves 94% efficiency at 400kHz with a 12VIN, 5VOUT, and 0.6A load. - Can the device start up directly from the wide input voltage?
Yes, precision enable allows a direct connection to the wide input voltage. - Does the system require an external supervisor?
No, the built-in power-good flag eliminates the need for an external supervisor. - What package type is used for this component?
It uses a small 2mm x 3mm VQFN package with wettable flanks.
