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TPS630251

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采用 WCSP 封装的 4A 开关单电感降压/升压转换器

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TPS630251

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产品详情

Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 2.9 Vout (min) (V) 2.9 Switch current limit (typ) (A) 4 Features Enable, Light-load efficiency, Load Disconnect, Output discharge, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 2.9 Vout (min) (V) 2.9 Switch current limit (typ) (A) 4 Features Enable, Light-load efficiency, Load Disconnect, Output discharge, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 100
DSBGA (YFF) 20 3.96 mm² (— mm × — mm)
  • Real Buck or Boost Operation with Automatic and
    Seamless Transition Between Buck and Boost
    Operation
  • 2.3 V to 5.5 V input voltage range
  • 2 A Continuous Output Current : VIN≥ 2.5 V,
    VOUT= 3.3 V
  • Adjustable and Fixed Output Voltage
  • Efficiency up to 95% in Buck or Boost Mode and
    up to 97% when VIN=VOUT
  • 2.5MHz Typical Switching Frequency
  • 35-µA Operating Quiescent Current
  • Integrated Soft Start
  • Power Save Mode
  • True Shutdown Function
  • Output Capacitor Discharge Function
  • Over-Temperature Protection and Over-Current
    Protection
  • Wide Capacitance Selection
  • Small 1.766 mm × 2.086 mm, 20-pin WCSP and
    2.5 mm × 3 mm, 14-pin Hot Rod
  • Real Buck or Boost Operation with Automatic and
    Seamless Transition Between Buck and Boost
    Operation
  • 2.3 V to 5.5 V input voltage range
  • 2 A Continuous Output Current : VIN≥ 2.5 V,
    VOUT= 3.3 V
  • Adjustable and Fixed Output Voltage
  • Efficiency up to 95% in Buck or Boost Mode and
    up to 97% when VIN=VOUT
  • 2.5MHz Typical Switching Frequency
  • 35-µA Operating Quiescent Current
  • Integrated Soft Start
  • Power Save Mode
  • True Shutdown Function
  • Output Capacitor Discharge Function
  • Over-Temperature Protection and Over-Current
    Protection
  • Wide Capacitance Selection
  • Small 1.766 mm × 2.086 mm, 20-pin WCSP and
    2.5 mm × 3 mm, 14-pin Hot Rod

The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.

The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.
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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 High Current Single Inductor Buck-Boost Converter 数据表 (Rev. B) 2014-6-16
应用手册 降低直流/直流降压/升压转换器辐射 EMI 的层设计 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2021-7-16
应用手册 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018-12-11
应用手册 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018-9-19
应用手册 Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 2018-7-9
用户指南 TPS63025xEVM-553 2014-4-25
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

TPS630250EVM-553 — TPS630250 DSBGA 4A 开关降压/升压稳压器评估模块

TPS63025xEVM-553 可用于测试和评估德州仪器 (TI) 的 TPS63025 器件系列，即 2.5MHz（典型值）完全集成式降压/升压转换器。

TPS63025x 器件是采用降压/升压拓扑的高效率、低静态电流器件。它们适用于输入电压可能高于或低于输出电压的应用。输出电流可分别高达 2A（升压模式）和 4A（降压模式）。

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仿真模型

TPS630251 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAJ8A.ZIP (82 KB) - PSpice 模型
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计算工具

SLVC808 — Battery Lifetime Estimator

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封装 引脚 CAD 符号、封装和 3D 模型
DSBGA (YFF) 20 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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