LMR36503-Q1
- AEC-Q100-qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- >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)
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 converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 3.3 V, 5 V and other adjustable output voltages.
The LMR36503-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 LMR36503-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 LMR36503-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 LMR36503-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503-Q1 to an external clock. With the right resistor selection, the LMR36503-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503-Q1 is designed to simplify implementation for a wide range of automotive end equipments.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMR36503-Q1 3-V to 65-V, 0.3-A Synchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet (Rev. B) | PDF | HTML | 2020年 9月 22日 |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021年 4月 8日 | ||
| Functional safety information | LMR3650x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2020年 10月 26日 | |
| EVM User's guide | LMR36506MSCEVM User’s Guide (Rev. A) | 2020年 5月 19日 | ||
| Technical article | Optimizing flip-chip IC thermal performance in automotive designs | PDF | HTML | 2019年 12月 11日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
LMR36503MSCEEVM — LMR360503E-Q1 評估模組
LMR36503E-Q1 是採用同步整流的 65V DC/DC、0.3A 降壓穩壓器，可在小型元件封裝中實現高轉換效率。LMR36503E-Q1 評估模組 (EVM) 可在 5.5V 至 65V 的廣泛輸入電壓範圍內運作，以 2.2MHz 的切換頻率提供最高 0.3A 負載的穩壓 5V 輸出。LMR36503MSCEEVM 可在全負載時支援高於 1.5% 的輸出電壓穩壓準確度，並可使用外部電阻分壓器進行調整。
LMR36506EVM — 車用 3-V 至 65-V、0.6-A 超小型同步降壓轉換器評估模組
The LMR36506MSCEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR36506-Q1 synchronous step-down converter. The LMR36503-Q1 can also be evaluated with LMR36506MSCEVM.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RPE) | 9 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點