Texas Instruments LMR36506/LMR36506-Q1 Synchronous Buck Converter
Texas Instruments LMR36506/LMR36506-Q1 Synchronous Buck Converter is a 65V, 0.6A synchronous step-down DC/DC converter in a 2mm x 2mm HotRod™ package. This easy-to-use converter can handle input voltage transients up to 70V, provides excellent EMI performance, and supports fixed 3.3V, 5V, and other adjustable output voltages. The LMR36506/LMR36506-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 Texas Instruments LMR36506/LMR36506-Q1 helps it remain functional during a deep input voltage sag condition, making it an excellent choice for automotive applications withstanding severe cold crank start impulses.
The PGOOD flag in the LMR36506/LMR36506-Q1 precisely indicates 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 LMR36506/LMR36506-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36506/LMR36506-Q1 to an external clock. With the proper resistor selection, the LMR36506/LMR36506-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36506/LMR36506-Q1 is designed to simplify implementation for a wide range of automotive end equipment. The LMR36506-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- AEC-Q100-qualified for automotive applications
- –40°C to +125°C, TA device temperature grade 1
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- >80% efficiency at 1mA
- 4µA Iq (switching) at 24VIN to 3.3VOUT (fixed output option)
- Miniature solution size and low component cost
- 2mm × 2mm HotRod™ package with wettable flanks
- Internal compensation
- Designed for automotive applications
- Junction temperature range of -40°C to +150°C
- Pseudo-random spread spectrum compatible with CISPR 25 EMI standard
- Wide input voltage range: 3.0V (falling threshold) to 65V
- Adjustable, 3.3V, and 5V fixed output voltage options are available
- Synchronizable with MODE/SYNC pin variant
- 200kHz to 2.2MHz with RT pin variant adjustable FSW
- Pin compatible with LMR36503-Q1 (65V, 300mA)
Applications
- Advanced driver assistance systems (ADAS)
- Body electronics and lighting
- Infotainment and cluster
Datasheets
Functional Block Diagram
Related Product
Texas Instruments LMR36500 Synchronous Buck Converter
Ultra-small, 3V to 65V wide input voltage range available in a 4mm2 HotRod package.
Related Development Tool
Texas Instruments LMR36506RREVM Evaluation Module
Facilitates the evaluation of the LMR36506 wide-input buck converters.