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TPS62590

現行

採用 2 x 2 SON 封裝的 2.25MHz、1A 降壓轉換器

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPS628511 現行 採用 SOT583 封裝的 2.7-V 至 6-V、1-A、固定頻率降壓轉換器 Smaller size and extended temperature range

TPS62590

現行
產品規格表 立即訂購

產品詳細資料

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 x 2
  • 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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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet TPS62590 1-A Step Down Converter in 2-mm × 2-mm WSON Package datasheet (Rev. C) PDF | HTML 2015年 12月 23日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019年 6月 14日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015年 1月 29日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS62590EVM-454 — TPS62590EVM-454 評估模組

The TPS62590EVM-454 evaluation module facilitates evaluation of the TPS62590 1A synchronous step-down DC/DC converter.
使用指南: PDF
TI.com 無法提供
模擬型號

TPS62590 TINA-TI Transient Reference Design

SLVM237.TSC (129 KB) - TINA-TI Reference Design
下載
模擬型號

TPS62590 TINA-TI Transient Spice Model

SLVM238.ZIP (35 KB) - TINA-TI Spice Model
下載
模擬型號

TPS62590 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM122A.ZIP (37 KB) - PSpice Model
下載
計算工具

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
支援產品和硬體

支援產品和硬體
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Gerber 檔案

TPS62590 EVM Gerbers

SLVC488.ZIP (102 KB)
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參考設計

TIDA-00942 — 適用於數位器的 12 位元 20 MSPS 資料採集參考設計

此參考設計可實現符合成本效益且低功耗的資料擷取系統，可為 FPGA 架構系統提供替代方案。其具有單端高阻抗輸入，可用於各種應用，包括可攜式儀器和數位器。

此參考設計運用 ADS4122 類比轉數位轉換器 (ADC)，以及 OPA656 和 THS4541 運算放大器 (op amps)，開發適用 BeagleBone Cape 外型尺寸的 12 位元 20-MSPS 數位器。此參考設計中開發的擴充板與 BeagleBone Black 開發平台介接，該平台是一款以 ARM Cortex-A8 處理器為基礎的低成本、開放原始碼、社群支援的環境。

Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DRV) 6 Ultra Librarian
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