The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.

The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 µA.

The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).

• Up to 93% Efficiency at 3-MHz Operation
• Up to 500-mA Output Current at VI = 2.7 V
• 3-MHz Fixed Frequency Operation
• Best in Class Load and Line Transient
• Complete 1-mm Component Profile Solution
• –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
• 35-ns Minimum On-Time
• Power-Save Mode Operation at Light Load Currents
• Fixed and Adjustable Output Voltage
• Only 86-μA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Synchronizable On the Fly to External Clock Signal
• Integrated Active Power-Down Sequencing (TPS6232x only)
• Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree?, and NanoStar? (CSP) Packaging
• APPLICATIONS
  • Cell Phones, Smart-Phones
  • WLAN and Bluetooth? Applications
  • Micro DC-DC Converter Modules
  • PDAs, Pocket PCs
  • USB-Based DSL Modems
  • Digital Cameras

NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments. Bluetooth is a trademark of Bluetooth SIG, Inc. PowerPAD is a trademark of Texas Instruments.

• Vin (Min) (V)
• 2.7
• Vin (Max) (V)
• 6
• Vout (Min) (V)
• 0.6
• Vout (Max) (V)
• 5.4
• Iout (Max) (A)
• 0.5
• Iq (Typ) (uA)
• 86
• Switching frequency (Min) (kHz)
• 2650
• Switching frequency (Max) (kHz)
• 3350
• Features
• Enable, Forced PWM, Frequency Synchronization, Light Load Efficiency, Output Discharge, Synchronous Rectification
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 100

TPS62320的完整型号有：TPS62320DRCR，以下是这些产品的关键参数及官网采购报价：

TPS62320DRCR，工作温度：-40 to 85，封装：VSON (DRC)-10，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS62320DRCR的批量USD价格：0.591（1000+）

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 (...)