The TPS6204x family of devices are high efficiency synchronous step-down dc-dc converters optimized for battery powered portable applications. The devices are ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the devices support low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers. The TPS6204x operates at a fixed switching frequency of 1.25 MHz 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 devices can be forced into fixed frequency PWM mode by pulling the MODE pin high. The TPS6204x supports up to 1.2-A load current.

• Up to 95% Conversion Efficiency
• Typical Quiescent Current: 18 μA
• Load Current: 1.2 A
• Operating Input Voltage Range: 2.5 V to 6.0 V
• Switching Frequency: 1.25 MHz
• Adjustable and Fixed Output Voltage
• Power Save Mode Operation at Light load Currents
• 100% Duty Cycle for Lowest Dropout
• Internal Softstart
• Dynamic Output Voltage Positioning
• Thermal Shutdown
• Short-Circuit Protection
• 10 Pin MSOP PowerPad? Package
• 10 Pin QFN 3 X 3 mm Package
• APPLICATIONS
  • PDA, Pocket PC and Smart Phones
  • USB Powered Modems
  • CPUs and DSPs
  • PC Cards and Notebooks
  • xDSL Applications
  • Standard 5-V to 3.3-V Conversion

PowerPAD is a trademark 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)
• 1.2
• Iq (Typ) (uA)
• 18
• Switching frequency (Min) (kHz)
• 1000
• Switching frequency (Max) (kHz)
• 1500
• Features
• Enable, Forced PWM, Light Load Efficiency, Power Good, Synchronous Rectification
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 100

TPS62042的完整型号有：TPS62042DGQ、TPS62042DGQR、TPS62042DRCR，以下是这些产品的关键参数及官网采购报价：

TPS62042DGQ，工作温度：-40 to 85，封装：HVSSOP (DGQ)-10，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAUAG，TI官网TPS62042DGQ的批量USD价格：.902（1000+）

TPS62042DGQR，工作温度：-40 to 85，封装：HVSSOP (DGQ)-10，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAUAG，TI官网TPS62042DGQR的批量USD价格：.763（1000+）

TPS62042DRCR，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TPS62042DRCR的批量USD价格：.763（1000+）

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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。

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