The LMR436x0-Q1 is the industry’s smallest 36-V, 2-A and 1-A synchronous step-down DC/DC converters in a 2-mm × 2-mm HotRod package. This easy-to-use converter supports a wide input voltage range of 3.0 V to 36 V with transients up to 42 V.
The LMR43620-Q1 is specifically designed to meet low standby power requirements for always on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of 1.5 µA at 13.5 V IN and high light load efficiency. A seamless transition between PWM and PFM modes along with very low MOSFET ON resistances provide exceptional efficiency across the entire load range.
The control architecture and feature set are optimized for an ultra-small solution size. The device uses peak current mode control to minimize output capacitance. The LMR436x0-Q1 minimizes input filter size by utilizing dual random spread spectrum, a low-EMI HotRod package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands.
The rich feature set of the LMR436x0-Q1 is designed to simplify implementation for a wide range of automotive end equipments.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LMR436x0-Q1, 36-V, 1-A/2-A Buck Converter with <2.5 µA IQ at 150°C TJMAX in 4-mm2 HotRod™ QFN datasheet (Rev. E) | PDF | HTML | 06 Jun 2022 |
| White paper | 克服低功耗應用中的低 IQ 挑戰 (Rev. B) | PDF | HTML | 19 Apr 2023 | |
| White paper | 저전력 애플리케이션의 저 IQ 문제점 극복 (Rev. B) | PDF | HTML | 19 Apr 2023 | |
| White paper | Overcoming Low-IQ Challenges in Low-Power Applications (Rev. B) | PDF | HTML | 12 Apr 2023 | |
| Application note | EMI 감소 기법, 듀얼 랜덤 확산 스펙트럼 (Rev. A) | PDF | HTML | 21 Nov 2022 | |
| Application note | EMI Reduction Technique, Dual Random Spread Spectrum (Rev. A) | 19 Oct 2022 | ||
| Functional safety information | LMR436x0/LMR436x0-Q1 Functional Safety, FIT Rate, FMD and Pin FMA | PDF | HTML | 18 Mar 2022 | |
| Technical article | Lowering audible noise in automotive applications with TI’s DRSS technology | 18 Mar 2021 | ||
| Technical article | Minimize the impact of the MLCC shortage on your power application | 29 Mar 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| VQFN-HR (RPE) | 9 | View options |
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