The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors.

The TPS6242x operates at 2.25-MHz fixed switching frequency and enter 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/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON)

• High Efficiency up to 95%
• VIN Range from 2.5 V to 6 V
• 2.25-MHz Fixed Frequency Operation
• Output Current 600 mA and 1000 mA
• Adjustable Output Voltage from 0.6 V to VIN
• Pin Selectable Output Voltage Supports Simple Dynamic VoltageScaling
• Optional EasyScale One-Pin Serial Interface for Dynamic Output Voltage Adjustment
• Power-Save Mode at Light Load Currents
• 180° Out of Phase Operation
• Output Voltage Accuracy in PWM Mode ±1%
• Typical 32-μA Quiescent Current for both Converters
• 100% Duty Cycle for Lowest Dropout
• Available in a 10-Pin VSON (3 mm × 3 mm)

• Vin (Min) (V)
• 2.5
• Vin (Max) (V)
• 6
• Vout (Min) (V)
• 1.2
• Vout (Max) (V)
• 1.8
• Iout (Max) (A)
• 0.6
• Iq (Typ) (uA)
• 32
• Switching frequency (Min) (kHz)
• 2000
• Switching frequency (Max) (kHz)
• 2500
• Features
• Enable, Forced PWM, Light Load Efficiency, Synchronous Rectification, Adaptive/Dynamic Voltage Scaling
• Rating
• Catalog
• Regulated outputs (#)
• 2
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 100

TPS62421的完整型号有：TPS62421DRCR、TPS62421DRCT，以下是这些产品的关键参数及官网采购报价：

TPS62421DRCR，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TPS62421DRCR的批量USD价格：.658（1000+）

TPS62421DRCT，工作温度：-40 to 85，封装：VSON (DRC)-10，包装数量MPQ：250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TPS62421DRCT的批量USD价格：.79（1000+）

TPS62420 PSpice Average Model

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 (...)