計算工具
LMG5126-CALC — LMG5126 quick start calculator
LMG5126 quick start calculator helps on design of the power stage, component selection and loop compensation.
LMG5126
- Input voltage 6.5V to 42V
- Minimum 2.5V for V(BIAS) ≥ 6.5V or VOUT ≥ 6V
- Output Voltage 6V to 60V
- 2% accuracy, internal feedback resistors
- Bypass operation for VI > VOUT
- Boot refresh out of audio >20kHz
- Dynamic output voltage tracking
- Digital PWM tracking (DTRK)
- Analog tracking (ATRK)
- Over voltage protection (65V, 50V, 35V, 25V)
- Low shutdown ISD of 50µA typ. (200uA max.)
- Low operating IQ of 1.1mA typ. (2.5mA max.)
- Stacking with interleaved multiphase operation
- Up to 4-devices without external clock
- Switching frequency from 300kHz to 2.5MHz
- Syncronization to external clock (SYNCIN)
- Spread Spectrum (DRSS)
- Dynamically selectable switching modes (FPWM, Diode emulation)
- Current sense resistor or DCR sensing
- Average inductor current monitor
- Average input current limit
- Selectable current limit (30mV or 60mV)
- Selectable delay time (DLY)
- Power good indicator
- Programmable VI undervoltage lockout (UVLO)
- Lead-less RLF-22 package with wettable flanks
The LMG5126 is a stackable multiphase synchronous boost converter. The device provides a regulated output voltage for lower or equal input voltage also supporting VI to VOUT bypass mode to save power. Up to 4 devices can be stacked with or without external clock.
VOUT can be dynamically programmed using the digital or analog ATRK/DTRK function. VI can be as low as 2.5V after startup as the internal VCC supply is automatically switched from VBIAS to VOUT for VBIAS < 6.5V. The fixed switching frequency is set between 300kHz and 2.5MHz via a resistor on the RT-pin or the SYNCIN clock. The switching modes FPWM or Diode emulation can be changed during operation.
The implemented protections peak current limit, average input current limit, average inductor current monitor, over- and undervoltage protection or the thermal shutdown protect the device and the application.
技術文件
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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMG5126 Wide-Input, 2.5MHz, Boost Converter datasheet | PDF | HTML | 2024年 12月 6日 |
| Certificate | LMG5126EVM EU Declaration of Conformity (DoC). | 2025年 9月 8日 | ||
| EVM User's guide | LMG5126-Q1 Boost Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2025年 7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)。
開發板
LMG5126EVM — LMG5126 評估模組
LMG5126 評估模組 (EVM) 展示了 LMG5126 寬輸入電壓同步 GaN 升壓轉換器的功能和性能。此 EVM 旨在簡化配置，讓使用者能夠在同一模組上評估多種不同應用。標準配置旨在提供穩定的 24V 輸出電壓，並以 420kHz 的頻率進行切換。輸出電壓可透過 ATRK/DTRK 接腳進行動態調整。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-FCRLF (VBT) | 22 | 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。