計算工具
SNVR519 — LM5177 BuckBoost Quickstart Calculator Tool
LM5177 BuckBoost Quickstart Calculator Tool
支援產品和硬體
產品
AC/DC 和 DC/DC 控制器 (外部 FET)
- LM5177 — 具有雙向運作功能的 60-V 大範圍 VIN 同步 4 開關降壓-升壓控制器
硬體開發
開發板
- LM5177EVM-HP — 具四開關降壓升壓控制器的 LM5177 評估模組
LM5177
- Wide input range from 3.5V to 60V (85V absolute maximum)
- Minimum 2.8V when V(BIAS) > 3.5V
- Output voltage from 3.3V to 60V
- Low shutdown IQ of 3µA
- Low operating IQ of 60µA
- 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
- 2A 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 600kHz 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 save 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).
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開發板
LM51770EVM-HV — LM51770 buck-boost controller evaluation module
The LM51770EVM-HV evaluation module (EVM) demonstrates a flexible high-power buck-boost design using the LM51770. The EVM is configured to operate from an input voltage range of 36V to 48V and produce a regulated 48V output with up to 4A load current. The EVM operates with a switching frequency of (...)
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。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (DCP) | 38 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。