The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.
The LMR36503E-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LMR36503E-Q1 3V to 65V, 0.3A , Automotive, Grade 0, Synchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet (Rev. A) | PDF | HTML | Sep 18, 2024 |
| Functional safety information | LMR36503E-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | Jun 13, 2024 |
For additional terms or required resources, click any title below to view the detail page where available.
The LMR36503E-Q1 is a 65V DC/DC, 0.3A buck regulator that features synchronous rectification to achieve high conversion efficiency in a small footprint. The LMR36503E-Q1 evaluation module (EVM) operates over a wide input voltage range of 5.5V to 65V to provide a regulated 5V output up to 0.3A load (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN-HR (RPE) | 9 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.