計算工具
SNVR519 — LM5177 BuckBoost Quickstart Calculator Tool
LM5177 BuckBoost Quickstart Calculator Tool
LM5177
- Wide input range from 3.5 V to 60 V (85-V absolute maximum)
- Minimum 2.8 V when V (BIAS) > 3.5 V
- Output voltage from 3.3 V to 60 V
- Low shutdown I Q of 3 µA
- Low operating I Q of 60 µA
- 3% reverse current limit accuracy for precise charging currents
- Average input and output current monitor or limiter
- Dynamic output voltage tracking for PWM or analog input signals
- Power save mode (PSM) selectable for high light load efficiency
- Two integrated high-voltage supply LDOs with automatic selection
- 2-A peak current logic level gate driver
- Integrated bootstrap diode
- Bootstrap overvoltage and undervoltage protection
- Fixed frequency across all operating modes (boost, buck-boost, buck)
- Forced PWM mode selectable
- Switching up to 600 kHz for small solution and component size
- External clock synchronization
- Spread spectrum operation selectable
- Adjustable undervoltage protection
- Hiccup overcurrent and short protection
The LM5177 is a four switch buck-boost controller. The device provides a regulated output voltage if the input voltage is higher, equal, or lower than the adjusted output voltage. In power safe mode, the device supports high efficiency with low output loads due to its low quiescence currents. The LM5177 runs at a fixed switching frequency, which can be set through the RT or SYNC pin. The switching frequency remains the same during buck, boost, and buck-boost operation. The integrated and optional average current monitor can help monitor and limit input and output current of the LM5177. This feature also supports charging backup power elements, like batteries or capacitors, with constant current (CC) and constant voltage (CV).
技術文件
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檢視所有 9 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM5177 60-V Wide VIN Bidirectional 4-Switch Buck-Boost Controller datasheet (Rev. D) | PDF | HTML | 2023年 7月 26日 |
| Application note | Parallel Operation of the Buck-Boost Converters Using LM5177 Buck-Boost Controller (Rev. A) | PDF | HTML | 2024年 2月 27日 | |
| Application brief | A Simple Constant Voltage Regulation Using the MODE Pin (Rev. A) | PDF | HTML | 2024年 2月 15日 | |
| Application note | Layout Optimization of 4-Switch Buck-Boost Converters | PDF | HTML | 2023年 9月 5日 | |
| Application brief | Precise Current Limiter Over Wide Operation Voltages in Buck-Boost Converters | PDF | HTML | 2023年 9月 5日 | |
| User guide | LM5177 Buck-Boost Controller Evaluation Module User's Guide (Rev. B) | 2023年 4月 27日 | ||
| Application brief | Dynamic Current Tracking With the LM5177 4-Switch Buck Boost Controller | 2023年 2月 24日 | ||
| Application brief | Constant Current Operation Using the Internal Current Limiter | 2023年 1月 27日 | ||
| Certificate | LM5177EVM-HP EU RoHS Declaration of Conformity (DoC) | 2021年 12月 16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)。
開發板
LM5177EVM-HP — 具四開關降壓升壓控制器的 LM5177 評估模組
LM5177EVM-HP 展示使用 LM5177 wide-vin 降壓升壓控制器的靈活高功率降壓升壓設計。評估模組設定為在 4.2 V 至 36 V 輸入電壓範圍內運作，並提供最高 9.4 A 負載電流的穩壓 16-V 輸出。
使用指南: PDF
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HTSSOP (DCP) | 38 | 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