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TPS62240

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采用 2x2mm SON/TSOT23 封装的 2.25MHz 300mA 降压转换器

产品详情

Rating Catalog Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 6 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 6 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
SOT-23-THN (DDC) 5 8.12 mm² 2.9 x 2.8 WSON (DRV) 6 4 mm² 2 x 2
  • High Efficiency - Greater Than 94%
  • Output Current up to 300 mA
  • VIN Range from 2 V to 6 V for Li-ion Batteries With
    Extended Voltage Range
  • 2.25-MHz Fixed-Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • Adjustable Output Voltage from 0.6 V to VIN
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a SOT (5) and 2-mm × 2-mm × 0.8-
    mm WSON (6) Package
  • Allows <1-mm Solution Height
  • High Efficiency - Greater Than 94%
  • Output Current up to 300 mA
  • VIN Range from 2 V to 6 V for Li-ion Batteries With
    Extended Voltage Range
  • 2.25-MHz Fixed-Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • Adjustable Output Voltage from 0.6 V to VIN
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a SOT (5) and 2-mm × 2-mm × 0.8-
    mm WSON (6) Package
  • Allows <1-mm Solution Height

The TPS6224x device is a highly efficient synchronous step-down DC-DC converter. The device provides up to 300-mA output current from a single Li-Ion cell and is ideal for battery powered portable applications like mobile phones and other portable equipment.

With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline, 3.3-V and 5-V input voltage rails.

The TPS6224x 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. For low-noise applications, the device can be forced into fixed-frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6224x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6224x operates over a free-air temperature range of –40°C to 85°C. The device is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.

The TPS6224x device is a highly efficient synchronous step-down DC-DC converter. The device provides up to 300-mA output current from a single Li-Ion cell and is ideal for battery powered portable applications like mobile phones and other portable equipment.

With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline, 3.3-V and 5-V input voltage rails.

The TPS6224x 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. For low-noise applications, the device can be forced into fixed-frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6224x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6224x operates over a free-air temperature range of –40°C to 85°C. The device is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TPS6224x 2.25-MHz 300-mA Step-Down Converter in 2 x 2 WSON and SOT Package 数据表 (Rev. C) PDF | HTML 2015年 7月 31日
应用手册 QFN 和 SON PCB 连接 (Rev. C) PDF | HTML 英语版 (Rev.C) PDF | HTML 2024年 1月 5日
应用手册 TI 降压开关直流/直流转换器应用手册的快速参考指南 (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2022年 7月 8日
模拟设计期刊 Methods of output-voltage adjustment for DC/DC converters 2019年 6月 14日
应用手册 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
模拟设计期刊 Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
应用手册 Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017年 11月 29日
模拟设计期刊 Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
应用手册 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
模拟设计期刊 Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
应用手册 Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
模拟设计期刊 实现降压型转换器出色 PCB 布局的五个步骤 英语版 2015年 5月 1日
模拟设计期刊 DC/DC 转换器中电阻式反馈分压器设计考虑因素 英语版 2012年 6月 1日
应用手册 Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13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
应用手册 优化具有内部补偿功能的 DC-DC 转换器的瞬态响应 最新英语版本 (Rev.B) 2008年 7月 15日

设计与开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

TPS62240EVM-229 — TPS62240 6V 输入、1.8V 输出、0.3A 评估模块

The TPS62240EVM-229 facilitates evaluation of the TPS62240 2.25 MHz, 300 mA Step-Down DC-DC Converter.
用户指南: PDF
TI.com 上无现货
评估板

TPS62260LED-338 — TPS62260LED-338 评估模块

The TPS62260LED-338 evaluation module controls the color and brightness of a lamp or runs an automatic color light animation program. The color is generated by three LEDs (red, green and blue). An MSP430 ultra-low power microcontroller controls the brightness of each LED with constant current (...)

用户指南: PDF | HTML
TI.com 上无现货
仿真模型

TPS62240 TINA-TI Transient Reference Design

SLVM252.TSC (830 KB) - TINA-TI Reference Design
仿真模型

TPS62240 TINA-TI Transient Spice Model

SLVM253.ZIP (35 KB) - TINA-TI Spice Model
仿真模型

TPS62240 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM061A.ZIP (37 KB) - PSpice Model
计算工具

SLVC780 Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
支持的产品和硬件

支持的产品和硬件

光绘文件

HPA229 Gerber Files

SLVC134.ZIP (106 KB)
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23-THN (DDC) 5 Ultra Librarian
WSON (DRV) 6 Ultra Librarian

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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