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TPS62561

現行

採用 TSOT23 封裝的 2.25MHz 600mA 降壓轉換器

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
TLV62568A 現行 採用小型 SOT563 封裝且具有強制 PWM 的 2.5V-5.5V 輸入、1A 高效率降壓式降壓轉換器 Smaller SOT563 package, pin-pin compatible family 1A, 2A

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.85 Features Adaptive/Dynamic Voltage Scaling, 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) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.85 Features Adaptive/Dynamic Voltage Scaling, 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
  • Output Current up to 600 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
  • Soft Start
  • Available in a Small SOT, and 2 mm × 2 mm × 0.8 mm SON Package
  • For Improved Features Set, See the TPS62290 device (SLVS764)
  • Output Current up to 600 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
  • Soft Start
  • Available in a Small SOT, and 2 mm × 2 mm × 0.8 mm SON Package
  • For Improved Features Set, See the TPS62290 device (SLVS764)

The TPS62560 device is a high efficiency synchronous step down converter, optimized for battery powered portable applications. It provides up to 600-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 TPS62560 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 PWM mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62560 allows the use of small inductors and capacitors to achieve a small solution size.

TPS62560 and TPS62562 are available in a 2-mm × 2-mm, 6-pin SON package, whereas the TPS62561 is available in a 5-pin SOT package.

The TPS62560 device is a high efficiency synchronous step down converter, optimized for battery powered portable applications. It provides up to 600-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 TPS62560 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 PWM mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62560 allows the use of small inductors and capacitors to achieve a small solution size.

TPS62560 and TPS62562 are available in a 2-mm × 2-mm, 6-pin SON package, whereas the TPS62561 is available in a 5-pin SOT 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 TPS6256x 2.25-MHz, 600-mA Step-Down Converter in TSOT and 2 × 2 × 0.8-mm QFN Package datasheet (Rev. D) PDF | HTML 2013年 1月 18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

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開發板

TPS62560EVM-330 — TPS62560 評估模組

The TPS62560EVM-330 evaluation module (EVM) helps designers evaluate the operation andperformance of the TPS62560 DC/DC converter. This converter is a 2.25-MHz, synchronous, step-down converter capable of 600 mA of output current. The user’s guide describes the characteristics, operation, and use (...)

使用指南: PDF
TI.com 無法提供
模擬型號

TPS62561 PSpice Transient Model

SLIM120.ZIP (44 KB) - PSpice Model
模擬型號

TPS62561 TINA-TI Transient Reference Design

SLVM241.TSC (119 KB) - TINA-TI Reference Design
模擬型號

TPS62561 TINA-TI Transient Spice Model

SLVM242.ZIP (26 KB) - TINA-TI Spice Model
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
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