• - 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 TPS6024x is a switched capacitor voltage converter, ideally suited for VCO and PLL applications that require low noise and tight tolerances. Its dual-cap design uses four ceramic capacitors to provide ultralow output ripple yet high efficiency, while eliminating the need for inefficient linear regulators.

A wide input supply voltage range of 2.7 V to 5.5 V makes the TPS6024x ideal for lithium-based battery applications. The TPS60240/2/3 operates down to 1.8 V, supporting a 3.3-V, 2.7-V, 3-V output from two-cell, nickel- or alkaline-based chemistries. The devices work equally well for low EMI dc/dc step-up conversion without the need for an inductor. The high switching frequency (typical 160 kHz) promotes the use of small surface-mount capacitors, saving board space.

特性

• Wide Input Voltage Range:
  • 1.8 V To 5.5 V for 2.7-V, 3-V, 3.3-V Output (TPS60240/2/3)
  • 2.7 V To 5.5 V for 5-V Output (TPS60241)
• 170-uVrms Zero Ripple Output:
  • at 20 Hz to 10 MHz Bandwidth
• Minimum Number of External Components
  • No Inductors
  • Only Small Ceramic Chip Capacitors
• Up to 90% Efficiency
• Regulated 3.3-V (TPS60240), 5-V (TPS60241), 3-V (TPS60243), and 2.7-V (TPS60242) Output Voltage With ±2.5% Accuracy Over Load
• Up to 25-mA Output Current
• Shutdown Mode: 0.1 uA Typical
• Thermal Protection and Current Limit
• Microsmall 8-Pin MSOP Package
• EVM Available TPS60241EVM-194
• APPLICATIONS
  • VCO and PLL Power for:
    • PDA Phones
    • Cellular Phones
    • PCMCIA Modems