描述

TPSM82480 是一款适用于低厚度负载点电源的同步降 压直流/直流转换器模块。2.4V 至 5.5V 的输入电源范 围使其既可以通过典型的 3.3V 或 5V 接口电源运行， 也可以通过低至 2.4V 的备份电路运行。 输出电流最大可达 6A，由每相各为 3A 的两相电源持 续提供，能够以异相运行，显著降低脉冲电流噪声。 TPSM82480 可在超轻负载时自动进入省电模式，并能 保持高效率。其中包含自动增加/减少相位功能，具体 使用一个相位还是两个相位视实际负载情况而定。可通 过“模式”功能关闭省电模式。 器件可提供电源正常信号和可调软启动。此外，该器件 还 具有 温度正常信号指示内部温度过高。通过 VSEL 引脚可将输出电压更改为预选值。TPSM82480 能够以 100% 的占空比模式运行。

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 电源模块 

• 输出电流为 6A 

• 反馈电压精度为 ±1%

 • 输入电压范围：2.4V 至 5.5V 

• 输出电压范围：0.6V 至 5.5V

 • 典型静态电流为 23µA 

• 输出电压选择

 • 相移操作 

• 自动节能模式

 • 强制 PWM 模式 选项

 • 可调节软启动 

• 电源正常和温度正常输出 

• 欠压锁定 

• 过流和短路保护

 • 过热保护 

• 工作温度范围：-40°C 至 125°C 

2 应用 

• 薄型负载点电源

 • 存储、服务器、适配卡

 • 工业 PC/嵌入式 PC/FPGA 电源

 • 无线基站 • 测试和测量

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.