The TPS6222x devices are a family of high-efficiency, synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an output voltage range of 6 V down to 0.7 V and up to 400-mA output current, the devices are ideal for powering the low voltage TMS320 DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 MHz. At light load currents, the part enters the power-save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, the device achieves the highest efficiency over the entire load current range. The TPS6222x needs only three small external components. Together with the tiny TSOT23 package, a minimum system solution size can be achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

• High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
• 2.5-V to 6-V Input Voltage Range
• Adjustable Output Voltage Range From 0.7 V to VI
• Fixed Output Voltage Options Available
• Up to 400-mA Output Current
• 1.25-MHz Fixed Frequency PWM Operation
• Highest Efficiency Over Wide Load Current Range Due to Power-Save Mode
• 15 μA Typical Quiescent Current
• Soft Start
• 100% Duty Cycle Low-Dropout Operation
• Dynamic Output-Voltage Positioning
• Available in TSOT23 Package
• APPLICATIONS
  • PDAs and Pocket PC
  • Cellular Phones, Smart Phones
  • OMAP? and Low Power DSP Supply
  • Digital Cameras
  • Portable Media Players
  • Portable Equipment
  • WLAN PC Cards

OMAP, TMS320 are trademarks of Texas Instruments.

• Vin (Min) (V)
• 2.5
• Vin (Max) (V)
• 6
• Vout (Min) (V)
• 1.5
• Vout (Max) (V)
• 1.5
• Iout (Max) (A)
• 0.4
• Iq (Typ) (uA)
• 15
• Switching frequency (Min) (kHz)
• 800
• Switching frequency (Max) (kHz)
• 1850
• Features
• Enable, Light Load Efficiency, Synchronous Rectification
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 100

TPS62221的完整型号有：TPS62221DDCR、TPS62221DDCT，以下是这些产品的关键参数及官网采购报价：

TPS62221DDCR，工作温度：-40 to 85，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS62221DDCR的批量USD价格：0.436（1000+）

TPS62221DDCT，工作温度：-40 to 85，封装：SOT-23-THIN (DDC)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS62221DDCT的批量USD价格：0.523（1000+）

TPS62220EVM-014 — TPS62220 评估模块

The TPS62220EVM-014 is an evaluation tool for the TPS62220 400-mA inductive step-down converter in ThinSOT-23 which can supply voltages down to 0.7V from a 2.5-V to 6-V input. The TPS62220EVM-014 uses a TPS62220 adjustable output step-down converter and the appropriate feedback components to (...)

TPS62221EVM-014 — TPS62221 评估模块

The TPS62221EVM-014 is an evaluation tool for the TPS62221, 400-mA inductive step-down converter in ThinSOT-23 which can supply a fixed output voltage of 1.5V from a 2.5-V to 6-V input. The TPS62221EVM-014 uses a TPS62221 fixed output voltage step-down converter to provide a 1.5-V output voltage. (...)

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助?PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)