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LMR36503-Q1

Texas Instruments

Synchronous Buck Converter

www.ti.com LMR36503-Q1 SNVSBB5B – SEPTEMBER 2019 – REVISED SLEMPTRE3M6B5E0R32-Q0210 SNVSBB5B – SEPTEMBER 2019 – REVISED...



LMR36503-Q1

Texas Instruments


Octopart Stock #: O-1462408

Findchips Stock #: 1462408-F

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www.ti.com LMR36503-Q1 SNVSBB5B – SEPTEMBER 2019 – REVISED SLEMPTRE3M6B5E0R32-Q0210 SNVSBB5B – SEPTEMBER 2019 – REVISED SEPTEMBER 2020 LMR36503-Q1 3-V to 65-V, 0.3-A Synchronous Buck Converter Optimized for Size and Light Load Efficiency 1 Features AEC-Q100-qualified for automotive applications: – Device temperature grade 1: –40°C to +125°C, TA Functional Safety-Capable – Documentation available to aid functional safety system design >70% efficiency at 5 mA – 4 µA IQ (switching) at 24 VIN to 3.3 VOUT (fixed output option) Miniature solution size and low component cost – 2-mm × 2-mm HotRod™ package with wettable flanks – Internal compensation Designed for automotive applications: – Junction temperature range –40°C to +150°C – Pseudo-random spread spectrum compatible with CISPR 25 EMI standard – Wide input voltage range: 3.0 V (falling threshold) to 65 V – Adjustable, 3.3-V and 5-V fixed output voltage options available – Synchronizable with MODE/SYNC pin variant – Adjustable FSW: 200 kHz to 2.2 MHz with RT pin variant – Pin compatible with LMR36506-Q1 (65 V, 600 mA) 2 Applications Advanced driver assistance systems (ADAS) Body electronics and lighting Infotainment and cluster VIN CIN CVCC VIN EN/ UVLO MODE/ SYNC VCC BOOT SW PGOOD FB GND CBOOT LIND VOUT COUT RFBT RFBB Simplified Schematic 3 Description The LMR36503-Q1 is the industry's smallest 65 V, 0.3 A synchronous step-down DC/DC converter in 2-mm x 2-mm HotRod™ package. This easy-to-use conver...




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