• - 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 TPS712xx family of low-dropout (LDO) voltage regulators is tailored to noise-sensitive and RF applications. These products feature dual 250 mA LDOs with ultralow noise, high power-supply rejection ratio (PSRR), and fast transient and start-up response. Each regulator output is stable with low-cost 2.2 µF ceramic output capacitors and features very low dropout voltages (125 mV typical at 250 mA). Each regulator achieves fast start-up times (approximately 60 µs with a 0.001 µF bypass capacitor) while consuming very low quiescent current (300 µA typical with both outputs enabled). When the device is placed in standby mode, the supply current is reduced to less than 0.3 µA typical.

特性

• Dual 250 mA High-Performance RF LDOs
• Available in Fixed and Adjustable
  Voltage Options (1.2 V to 5.5 V)
• High PSRR: 65 dB at 10 kHz
• UltraLow Noise: 32 µVrms
• Fast Start-Up Time: 60 µs
• Stable with 2.2 µF Ceramic Capacitor
• Excellent Load/Line Transient Response
• Very Low Dropout Voltage: 125 mV at 250 mA
• Independent Enable Pins
• Thermal Shutdown and Independent Current Limit
• Available in Thermally-Enhanced SON Package: 3mm × 3mm × 1mm
• APPLICATIONS
  • Cellular and Cordless Phones
  • Wireless PDA/Handheld Products
  • PCMCIA/Wireless LAN Applications
  • Digital Camera/Camcorder/Internet Audio
  • DSP/FPGA/ASIC/Controllers and Processors