TPS62273中文资料具有可选 Vout 的 2.25MHz 400mA 降压转换器数据手册TI规格书

描述 Description

The TPS62270 device is a high efficiency synchronous step down DC-DC converter optimized for battery powered portable applications. It provides up to 400 mA output current from a single Li-Ion cell.
With an input voltage range of 2 V to 6 V the device supports Li-Ion batteries with extended voltage range, and is ideal to power portable applications like mobile phones and other portable equipment.
The TPS62270 operates at 2.25 MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. The Power Save Mode is optimized for low output voltage ripple.
With the VSEL pin, two different fixed output voltages can be selected. This function featuresa dynamic voltage scaling for low power processor cores.
In the shutdown mode, the current consumption is reduced to less than 1µA. TPS62270 allows the use of small inductors and capacitors to achieve a small solution size.
The TPS62270 is available in a 2 mm × 2 mm, 6-pin SON package.

特性 Features

• High Efficiency Step Down Converter
• Output Current up to 400 mA
• VIN Range From 2V to 6V for Li-Ion Batteries With Extended Voltage Range
• 2.25 MHz Fixed Frequency Operation
• Pin-Selectable Fixed Output Voltage
• Power SaveMode for Highest Efficiency
• Automatic transition between PFM and PWM Mode
• Voltage Positioning in PFM Mode
• Typical 15-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Available in 2×2×0,8 mm SON Package
• Allows

简介

TPS62273属于集成电路（IC）的DCDC开关稳压器。由TI制造生产的TPS62273稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。