The TPS65055 device is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails.
The TPS65055 provides two highly efficient, 2.25 MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor-based system. Both step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.
For low noise applications the device can be forced into fixed frequency PWM mode using the I2C compatible interface. In shutdown mode, current consumption is reduced to less than 1 µA.
The device allows the use of small inductors and capacitors to achieve a small solution size.
The TPS65055 provides an output current of up to 0.6 A on each DC-DC converter.
The TPS65055 also integrates two 400-mA LDO and two 200-mA LDO voltage regulators, which can be turned on/off using separate enable pins on each LDO. Each LDO operates with an input voltage range from 1.5 V to 6.5 V allowing them to be supplied from one of the step-down converters or directly from the main battery. Two digital input pins are used to set the output voltage of the LDOs from a set of 9 different combinations for LDO1 to LDO4. Additionally, the converters can be controlled by an I2C compatible interface.
The TPS65055 is available in a small 32-pin leadless package (4 mm × 4 mm QFN) with a 0.4-mm pitch.
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | TPS65055 2.25-MHz Dual Step-Down Converter With 4 Low-Input Voltage LDOs 数据表 (Rev. A) | PDF | HTML | 2015年 6月 30日 | ||
| 应用手册 | 设计电压监控器的电阻分压器输入端时的 IQ与精度权衡因素 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2021年 10月 25日 | |
| 应用手册 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015年 8月 17日 | ||||
| 应用手册 | TPS6505x Design Guide | 2015年 4月 10日 | ||||
| 模拟设计期刊 | IQ：它是什么、不是什么以及如何使用 | 英语版 | 2011年 8月 17日 |
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The IPG-UI GUI can be used to configure multiple PMIC devices to evaluate the features and performance of those devices. This GUI is built using web-based technologies and supports interacting with the EVM hardware using a USB2ANY adapter board. The USB2ANY Explorer is provided to allow (...)
下载：安装用于 TPS65055EVM-SW 的软件
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RSM) | 32 | Ultra Librarian |