TPS61220DCKR开关稳压器Tiny原装德州TI

1特征3描述

TPS6122x系列设备在典型运行时提供1•高达95%的效率

适用于单细胞、双细胞或三细胞碱性、NiCd或NiMH或one•的产品

5.5μA静态电流电池锂离子或Li-polymer电池。可能的输出

•在0.7 V输入电压电流下启动到负载取决于输入输出电压比。

升压转换器是基于滞后•操作输入电压从0.7 V到5.5 V

控制器拓扑采用同步整流方式

•关闭期间的直通功能可以在最小的静止状态下获得最大的效率

•最小开关电流200毫安电流。可调版的输出电压

•保护:可通过外部电阻分压器编程，或

内部设置为固定输出电压。的

-输出过电压转换器可以关闭一个功能使能

——超温针。当被关闭时，电池耗电量是

-输入欠压锁定最小化。该设备采用6针SC-70

包装(DCK)测量2毫米x2毫米，使1.8 V到6 V的可调输出电压

电路布局尺寸小。

•固定输出电压版本

•小型6针SC-70包装

2应用程序TPS61220

•电池供电应用

- 1 - 3细胞碱性，NiCd或NiMH

- 1个锂离子电池或锂原电池

•太阳能或燃料电池供电的应用

•消费者和便携式医疗产品

•个人护理产品

•白色或状态led

•智能手机

1 Features 3 Description

The TPS6122x family devices provide a power-supply 1• Up to 95% Efficiency at Typical Operating

solution for products powered by either a single-cell, Conditions two-cell, or three-cell alkaline, NiCd or NiMH, or one•

5.5 μA Quiescent Current cell Li-Ion or Li-polymer battery. Possible output

• Startup Into Load at 0.7 V Input Voltage currents depend on the input-to-output voltage ratio.

The boost converter is based on a hysteretic • Operating Input Voltage from 0.7 V to 5.5 V

controller topology using synchronous rectification to

• Pass-Through Function during Shutdown obtain maximum efficiency at minimal quiescent

• Minimum Switching Current 200 mA currents. The output voltage of the adjustable version

• Protections: can be programmed by an external resistor divider, or

is set internally to a fixed output voltage. The

– Output Overvoltage converter can be switched off by a featured enable

– Overtemperature pin. While being switched off, battery drain is

– Input Undervoltage Lockout minimized. The device is offered in a 6-pin SC-70

package (DCK) measuring 2 mm x 2 mm to enable • Adjustable Output Voltage from 1.8 V to 6 V

small circuit layout size.

• Fixed Output Voltage Versions

• Small 6-pin SC-70 Package

2 Applications TPS61220

• Battery Powered Applications

– 1 to 3 Cell Alkaline, NiCd or NiMH

– 1 cell Li-Ion or Li-Primary

• Solar or Fuel Cell Powered Applications

• Consumer and Portable Medical Products

• Personal Care Products

• White or Status LEDs

• Smartphones

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