• - 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 TPS781 family of low-dropout (LDO) regulators offer the benefits of ultralow power (I_Q = 1µA), miniaturized packaging (2×2 SON-6), and selectable dual-level output voltage levels. An adjustable version is also available, but does not have the capability to shift voltage levels.

The V_SET pin allows the end user to switch between two voltage levels on-the-fly through a microprocessor-compatible input. This LDO is designed specifically for battery-powered applications where dual-level voltages are needed. With ultralow I_Q (1µA), microprocessors, memory cards, and smoke detectors are ideal applications for this device.

The ultralow-power and selectable dual-level output voltages allow designers to customize power consumption for specific applications.

特性

• Low I_Q: 1µA
• 150mA, Low-Dropout Regulator with Pin-Selectable Dual Voltage Level Output
• Low Dropout: 200mV at 150mA
• 3% Accuracy Over Load/Line/Temperature
• Available in Dual-Level, Fixed Output Voltages from 1.5V to 4.2V Using Innovative Factory EPROMProgramming
• Available in an Adjustable Version from 1.22V to 5.25V or a Dual-Level Output Version
• V_SET Pin Toggles Output Voltage Between Two Factory-Programmed Voltage Levels
• Stable with a 1.0µF Ceramic Capacitor
• Thermal Shutdown and Overcurrent Protection
• CMOS Logic Level-Compatible Enable Pin
• Available in DDC (TSOT23-5) or DRV (2mm × 2mm SON-6) Package Options
• APPLICATIONS
  • TI MSP430 Attach Applications
  • Power Rails with Programming Mode
  • Dual Voltage Levels for Power-Saving Mode
  • Wireless Handsets, Smartphones, PDAs, MP3 Players, and Other Battery-Operated Handheld Products