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TPS62590

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采用 1x2 SON 封装的 2.25MHz、2A 降压转换器

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功能与比较器件相同但引脚有所不同。
TPS628511 正在供货 采用 SOT583 封装的 2.7V 至 6V、1A 固定频率降压转换器 Smaller size and extended temperature range

TPS62590

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产品详情

Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.75 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Synchronous Rectification, UVLO Fixed, UVLO fixed 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) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.75 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • Output Current up to 1000 mA
  • Input Voltage Range from 2.5 V to 5.5 V
  • Output Voltage Accuracy in PWM Mode ±2.5%
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a 2 mm × 2 mm × 0.8 mm WSON
    Package
  • For Improved Features Set, See the TPS62290
    device (SLVS764)
  • APPLICATIONS
    • Mobile Phones, Smart Phones
    • Tablet PCs
    • WLAN
    • Low Power DSP Supply
    • Point-of-Load (POL) Applications

All other trademarks are the property of their respective owners
  • Output Current up to 1000 mA
  • Input Voltage Range from 2.5 V to 5.5 V
  • Output Voltage Accuracy in PWM Mode ±2.5%
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a 2 mm × 2 mm × 0.8 mm WSON
    Package
  • For Improved Features Set, See the TPS62290
    device (SLVS764)
  • APPLICATIONS
    • Mobile Phones, Smart Phones
    • Tablet PCs
    • WLAN
    • Low Power DSP Supply
    • Point-of-Load (POL) Applications

All other trademarks are the property of their respective owners

The TPS62590 device is a high-efficiency synchronous step down converter, optimized for battery powered portable applications. The device provides up to 1000-mA output current from batteries, such as single Li-Ion or other common chemistry AA and AAA cells.

With an input voltage range of 2.5 V to 5.5 V, the device is targeted to power a large variety of portable handheld equipment or POL applications.

The TPS62590 family operates at 2.25-MHz fixed switching frequency and enters a power save mode operation at light load currents to maintain a 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 the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62590 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590 is available in a 2-mm × 2-mm 6-pin WSON package.

The TPS62590 device is a high-efficiency synchronous step down converter, optimized for battery powered portable applications. The device provides up to 1000-mA output current from batteries, such as single Li-Ion or other common chemistry AA and AAA cells.

With an input voltage range of 2.5 V to 5.5 V, the device is targeted to power a large variety of portable handheld equipment or POL applications.

The TPS62590 family operates at 2.25-MHz fixed switching frequency and enters a power save mode operation at light load currents to maintain a 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 the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62590 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590 is available in a 2-mm × 2-mm 6-pin 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 TPS62590 1-A Step Down Converter in 2-mm × 2-mm WSON Package 数据表 (Rev. C) PDF | HTML 2015-12-23
应用手册 QFN 和 SON PCB 连接 (Rev. C) PDF | HTML 英语版 (Rev.C) PDF | HTML 2024-1-5
模拟设计期刊 Methods of output-voltage adjustment for DC/DC converters 2019-6-14
应用手册 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018-12-11
模拟设计期刊 Understanding 100% mode in low-power DC/DC converters 2018-6-22
模拟设计期刊 Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017-10-24
应用手册 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017-6-15
模拟设计期刊 Testing tips for applying external power to supply outputs without an input voltage 2016-10-24
应用手册 Basic Calculation of a Buck Converter's Power Stage (Rev. B) PDF | HTML 2015-8-17
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 2015-5-1
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 2012-6-1
应用手册 Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012-1-13
模拟设计期刊 IQ：它是什么、不是什么以及如何使用 英语版 2011-8-17

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

TPS62590EVM-454 — TPS62590EVM-454 评估模块

TPS62590EVM-454 评估模块简化了 TPS62590 1A 同步降压 DC/DC 转换器的评估过程。
用户指南: PDF
支持的产品和硬件
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无货
仿真模型

TPS62590 TINA-TI Transient Reference Design

SLVM237.TSC (129 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

TPS62590 TINA-TI Transient Spice Model

SLVM238.ZIP (35 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

TPS62590 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM122A.ZIP (37 KB) - PSpice 模型
支持的产品和硬件
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
参考设计

TIDA-00942 — 适用于数字转换器的 12 位 20MSPS 数据采集参考设计

此参考设计实现了一个具有成本效益且低功耗的数据采集系统，可作为基于 FPGA 的系统的替代方案。其采用单端高阻抗输入，可应用于便携式仪表和数字转换器等多种应用。

该参考设计采用 ADS4122 模数转换器 (ADC) 以及 OPA656 和 THS4541 运算放大器，为 BeagleBone Cape 外形尺寸开发出 12 位 20MSPS 数字转换器。此参考设计中开发的扩展板可与 BeagleBone Black 开发平台相连，后者是一个基于 ARM Cortex-A8 处理器的低成本、开源、社区支持的环境。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
WSON (DRV) 6 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

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