計算工具
產品規格表
LMR50410-Q1
- AEC-Q100 qualified
- Temperature grade 1: –40°C to 125°C ambient operating temperature range
- Functional Safety-Capable
- Configured for rugged automotive applications
- Input voltage range: 4 V to 36 V
- 1-A continuous output current
- Minimum switching-on time: 60 ns
- 2.1-MHz fixed switching frequency
- Junction temperature range: –40°C to 150°C
- 98% maximum duty cycle
- Monotonic start-up with pre-biased output
- Internal short circuit protection with hiccup mode
- ±1% tolerance voltage reference
- Precision enable
- Small solution size and ease of use
- Integrated synchronous rectification
- Internal compensation for ease of use
- SOT-23-6 package
- Pin-to-pin compatible with TPS560430-Q1
- Various options in pin-to-pin compatible package
- PFM and forced PWM (FPWM) options
- Fixed 3.3-V and 5.0-V output option
- Create a custom design using the LMR50410-Q1 with the WEBENCH Power Designer
The LMR50410-Q1 is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1-A load current. With a wide input range of 4 V to 36 V, the device is suitable for a wide range of automotive applications for power conditioning from an unregulated source.
The LMR50410-Q1 operates at 2.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. It has an PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally which allows the device to be used with minimum external components.
The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR50410-Q1 is available in SOT-23-6 package.
技術文件
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檢視所有 4 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMR50410-Q1 SIMPLE SWITCHER® 4-V to 36-V, 1-A Buck Converter in SOT-23-6 Package datasheet (Rev. A) | PDF | HTML | 2020年 11月 13日 |
| Functional safety information | LMR50410-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 2020年 10月 16日 | |
| Certificate | LMR50410QEVM EU Declaration of Conformity (DoC) | 2020年 7月 22日 | ||
| EVM User's guide | LMR50410QEVM User's Guide | PDF | HTML | 2020年 7月 21日 |
設計與開發
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開發板
LMR50410QEVM — 4-V 至 36-V、1-A 同步降壓轉換器評估模組
The LMR50410QEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR50410-Q1 step-down converter. The board is set as a 3.3-V Vout. The board also has AC signal injection terminals for loop measurements.
參考設計
PMP22992 — 採用降壓和推拉式轉換器的雙路 15-V、120-mA 隔離式偏壓電源參考設計
此隔離式電源供應器在 120 mA 下提供雙 +15-V 輸出。此電源供應器的設計主要用於對 MOSFET 型功率級加偏壓，而該功率級可爲單獨激發的同步馬達 (SSM) 產生激磁。此設計使用 LMR50410-Q1 降壓前置穩壓器與具展頻調變的 SN6505-Q1 開迴路變壓器驅動器。廣泛的輸入電壓範圍和靈活性使這款多用途設計適合需要隔離電源的廣泛應用領域。此內部參考設計是 PMP22760 的替代方案，而 PMP22760 採用 LM5180-Q1 型單晶片解決方案。
| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOT-23 (DBV) | 6 | 檢視選項 |
訂購與品質
內含資訊：
- 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
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點