供应TI DC-DC芯片/TPS62203DBVR

功能：降压

输出配置：正

拓扑：降压

输出类型：固定

输出数：1

电压 - 输入（最小值）：2.5V

电压 - 输入（最大值）：6V

电压 - 输出（最小值/固定）：3.3V

电流 - 输出：300mA

频率 - 开关：1MHz

同步整流器：是

工作温度：-40°C ~ 85°C（TA）

安装类型：表面贴装

封装/外壳：SC-74A，SOT-753

供应商器件封装：SOT-23-5

• High Efficiency Synchronous Step-Down

Converter With up to 95% Efficiency The TPS6220x devices are a family of high-efficiency

synchronous step-down converters ideally suited for

• 2.5-V to 6-V Input Voltage Range

portable systems powered by 1-cell Li-Ion or 3-cell

• Adjustable Output Voltage Range From 0.7 V

NiMH/NiCd batteries. The devices are also suitable

to VI to operate from a standard 3.3-V or 5-V voltage rail.

• Fixed Output Voltage Options Available

With an output voltage range of 6 V down to 0.7 V

• Up to 300 mA Output Current and up to 300 mA output current, the devices are

• 1-MHz Fixed Frequency PWM Operation ideal to power low voltage DSPs and processors

used in PDAs, pocket PCs, and smart phones.

• Highest Efficiency Over Wide Load Current

Under nominal load current, the devices operate with

Range Due to Power Save Mode

a fixed switching frequency of typically 1 MHz. At

• 15-μA Typical Quiescent Current

light load currents, the part enters the power save

• Soft Start mode operation; the switching frequency is reduced

and the quiescent current is typically only 15 μA;

• 100% Duty Cycle Low-Dropout Operation

therefore, it achieves the highest efficiency over the

• Dynamic Output-Voltage Positioning entire load current range. The TPS6220x needs only