描述

TPSM82480 是一款適用于低厚度負載點電源的同步降 壓直流/直流轉(zhuǎn)換器模塊。2.4V 至 5.5V 的輸入電源范 圍使其既可以通過典型的 3.3V 或 5V 接口電源運行， 也可以通過低至 2.4V 的備份電路運行。 輸出電流最大可達 6A，由每相各為 3A 的兩相電源持 續(xù)提供，能夠以異相運行，顯著降低脈沖電流噪聲。 TPSM82480 可在超輕負載時自動進入省電模式，并能 保持高效率。其中包含自動增加/減少相位功能，具體 使用一個相位還是兩個相位視實際負載情況而定。可通 過“模式”功能關(guān)閉省電模式。 器件可提供電源正常信號和可調(diào)軟啟動。此外，該器件 還 具有 溫度正常信號指示內(nèi)部溫度過高。通過 VSEL 引腳可將輸出電壓更改為預(yù)選值。TPSM82480 能夠以 100% 的占空比模式運行。

The TPSM82480 is a synchronous step-down DC-DC converter module for low profilepoint-of-load power supplies. The input voltage range of 2.4 to 5.5 V enables operation fromtypical 3.3-V or 5-V interface supplies as well as from backup circuits dropping down as low as 2.4V. The output current is up to 6 A continuously provided by two phases of 3 A each. Theserun out-of-phase, reducing pulse current noise significantly.The TPSM82480 provides automatically entered power save modes to maintain high efficiencydown to very light loads. This incorporates an automatic phase adding and shedding feature usingboth or only one phase according to the actual load. The pulse skip mode for very light loads canbe switched off by using the MODE feature. The device features a Power Good signal and an adjustable soft start. Also, the devicefeatures a Thermal Good signal to detect excessive internal temperature. The output voltage can bechanged to a preselected value by VSEL pin. TPSM82480 is able to operate in 100% duty cyclemode.

特性 1

? 超小型 7.9 x 3.6 x 1.5mm 電源模塊 

? 輸出電流為 6A 

? 反饋電壓精度為 ±1%

 ? 輸入電壓范圍：2.4V 至 5.5V 

? 輸出電壓范圍：0.6V 至 5.5V

 ? 典型靜態(tài)電流為 23μA 

? 輸出電壓選擇

 ? 相移操作 

? 自動節(jié)能模式

 ? 強制 PWM 模式 選項

 ? 可調(diào)節(jié)軟啟動 

? 電源正常和溫度正常輸出 

? 欠壓鎖定 

? 過流和短路保護

 ? 過熱保護 

? 工作溫度范圍：-40°C 至 125°C 

2 應(yīng)用 

? 薄型負載點電源

 ? 存儲、服務(wù)器、適配卡

 ? 工業(yè) PC/嵌入式 PC/FPGA 電源

 ? 無線基站 ? 測試和測量

Ultra Small 7.9 x 3.6 x 1.5 mm Power ModuleOutput Current of6 AInput Voltage Range 2.4 to 5.5 VOutput Voltage Range0.6 to 5.5 VTypical Quiescent Current of 23 μAFeedbackVoltage Accuracy of ±1% (PWM Mode)Output VoltageSelectPhase Shifted Operation Automatic Power Save ModesForced PWMModeAdjustable Soft StartPower Good / Thermal GoodOutputsUndervoltage LockoutOver-current and Short-CircuitProtectionOver-temperature Protection-40°C to 125°COperating Junction Temperature RangeAll trademarks are the property of their respective owners.