TPS61046YFFR开关稳压器 28-V 原装德州TI

1特征3描述

TPS61046是一个高度集成的升压转换器

输入电压范围:1.8 V ~ 5.5 V, 1.6 V后

适用于需要高电压和启动小解决方案的应用，如PMOLED面板和传感器

输出电压高达28v模块。TPS61046集成了30伏电源

•集成功率二极管和隔离开关开关、输入/输出隔离开关、功率二极管。

通过Li+电池或•900-mA(典型)开关电流的输入，可输出最多28v

两个电池系列的碱性电池。

在3.6-V输入和12-V输入时，高达85%的效率

输出TPS61046以开关频率工作

在1.0 MHz。这允许使用小型外部•500-nA超低关机电流组件。TPS61046有一个内部默认值

•输出电压精度±2% 12 v输出电压设置通过连接FB销

•轻载至VIN pin码省电运行模式。因此，它只需要三个外部的

•内部10毫秒软启动时间组件，获得12 v输出电压。在一起

WCSP包，TPS61046给了一个非常小的

•输入和输出整体解决方案大小之间的真正断开。TPS61046具有典型的900-关断mA开关电流限制。它有10毫秒的内置软启动

输出短路保护时间，最大限度减少涌流。当

•输出过压保护TPS61046在关机模式，隔离开关

将输出与输入断开，以最小化

•热关闭保护泄漏电流。TPS61064也实现了

1 Features 3 Description

The TPS61046 is a highly integrated boost converter

1• Input Voltage Range: 1.8 V to 5.5 V, 1.6 V after

designed for applications requiring high voltage and Startup tiny solution size such as PMOLED panel and sensor

• Output Voltage Up to 28 V module. The TPS61046 integrates a 30-V power

• Integrated Power Diode and Isolation Switch switch, input/output isolation switch, and power diode.

It can output up to 28 V from input of a Li+ battery or • 900-mA (typical) Switch Current

two cell alkaline batteries in series.

• Up to 85% Efficiency at 3.6-V Input and 12-V

Output The TPS61046 operates with a switching frequency

at 1.0 MHz. This allows the use of small external • 500-nA Ultra-low Shutdown Current components. The TPS61046 has an internal default

• ±2% Output Voltage Accuracy 12-V output voltage setting by connecting the FB pin

• Power Save Operation Mode at Light Load to the VIN pin. Thus it only needs three external

• Internal 10-ms Soft Start Time components to get 12-V output voltage. Together with

WCSP package, the TPS61046 gives a very small

• True Disconnection between Input and Output overall solution size. The TPS61046 has typical 900- during Shutdown mA switch current limit. It has 10-ms built-in soft start

• Output Short Circuit Protection time to minimize the inrush current. When the

• Output Over-Voltage Protection TPS61046 is in shutdown mode, the isolation switch

disconnects the output from input to minimize the

• Thermal Shutdown Protection leakage current. The TPS61064 also implements