• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The TPS71Hxx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS71H50) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 uA over the full range of output current, 0 mA to 500 mA).

特性

• Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions
• Very Low-Dropout Voltage ...Maximum of 32 mV at I_O = 100 mA (TPS71H50)
• Very Low Quiescent Current – Independent of Load . . . 285 uA Typ
• Extremely Low Sleep-State Current
     0.5 uA Max
• 2% Tolerance Over Specified Conditions For Fixed-Output Versions
• Output Current Range of 0 mA to 500 mA
• TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications
• Thermally Enhanced Surface-Mount Package
• Power-Good (PG) Status Output