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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS61260

現行

具可調式輸出電壓的小型低輸入電壓升壓轉換器

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TPS61260

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Boost Type Converter Vin (min) (V) 0.8 Vin (max) (V) 4 Switching frequency (min) (kHz) 2500 Switching frequency (max) (kHz) 2500 Features Load Disconnect Vout (min) (V) 1.8 Vout (max) (V) 4 Iq (typ) (A) 0.000029
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Boost Type Converter Vin (min) (V) 0.8 Vin (max) (V) 4 Switching frequency (min) (kHz) 2500 Switching frequency (max) (kHz) 2500 Features Load Disconnect Vout (min) (V) 1.8 Vout (max) (V) 4 Iq (typ) (A) 0.000029
WSON (DRV) 6 4 mm² 2 x 2
  • Input Voltage Range from 0.8 V to 4.0 V
  • Up to 95% Efficiency
  • 100 mA Output Current at 3.3 Vout (VIN > 1 V)
  • Fixed and Adjustable Output Voltage Options from 1.8 V to 4.0 V
  • Programmable Average Output Current from 10 mA to 100 mA
  • Adjustable Output Current Limit for Smallest Inductor
  • Power Save Mode for Improved Efficiency at Low Output Power
  • 29-µA Quiescent Current
  • Advanced Softstart
  • Quasi Fixed Frequency Operation at 2.5 MHz
  • Output Overvoltage Protection
  • Load Disconnect During Shutdown
  • Undervoltage Lockout
  • Available in a 2.00 × 2.00 mm, 6-Pin WSON Package
  • Input Voltage Range from 0.8 V to 4.0 V
  • Up to 95% Efficiency
  • 100 mA Output Current at 3.3 Vout (VIN > 1 V)
  • Fixed and Adjustable Output Voltage Options from 1.8 V to 4.0 V
  • Programmable Average Output Current from 10 mA to 100 mA
  • Adjustable Output Current Limit for Smallest Inductor
  • Power Save Mode for Improved Efficiency at Low Output Power
  • 29-µA Quiescent Current
  • Advanced Softstart
  • Quasi Fixed Frequency Operation at 2.5 MHz
  • Output Overvoltage Protection
  • Load Disconnect During Shutdown
  • Undervoltage Lockout
  • Available in a 2.00 × 2.00 mm, 6-Pin WSON Package

The TPS6126x devices provide a power supply solution for products powered by either single or dual cell alkaline, NiCd, or NiMH batteries. Its unique advanced softstart makes it also suitable for products powered by high output impedance battery types, like coin cells. Output currents can go as high as 100 mA while using a single cell alkaline battery, and discharge it down to 0.8 V or lower.

The boost converter is based on a quasi fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save Mode to ensure high efficiency over a wide load current range. The maximum average current in the switches is limited to a programmable value which can go as high as 700 mA. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. In addition, the average output current can be programmed as well. The converter then regulates the programmed output voltage or the programmed output current, which ever demands lower output power. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 6-pin WSON (DRV) package.

The TPS6126x devices provide a power supply solution for products powered by either single or dual cell alkaline, NiCd, or NiMH batteries. Its unique advanced softstart makes it also suitable for products powered by high output impedance battery types, like coin cells. Output currents can go as high as 100 mA while using a single cell alkaline battery, and discharge it down to 0.8 V or lower.

The boost converter is based on a quasi fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save Mode to ensure high efficiency over a wide load current range. The maximum average current in the switches is limited to a programmable value which can go as high as 700 mA. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. In addition, the average output current can be programmed as well. The converter then regulates the programmed output voltage or the programmed output current, which ever demands lower output power. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 6-pin WSON (DRV) package.
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類型 標題 日期
* Data sheet TPS6126x 0.8-V Input Synchronous Boost Converters with 100-mA Output Current datasheet (Rev. C) PDF | HTML 2018年 4月 23日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Calculating and Measuring the No Load Input Current of the Boost Converter 2016年 9月 23日
Application note Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML 2016年 5月 3日
Application note Design of UVLO for LM27313 (Rev. B) 2014年 4月 8日
Application note Automated Frequency Response Analyzer 2013年 10月 9日
User guide TPS6126X User's Guide (Rev. B) 2013年 9月 12日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日
User guide TPS6126x, Low-Input Voltage, Boost Converter Evaluation Module 2011年 6月 8日

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TPS61260EVM-673 — 具有可調整輸出電壓的 TPS61260 小型低輸入電壓升壓轉換器的評估模組

This user’s guide describes the TPS6126x evaluation module (EVM) and how to perform a stand-alone evaluation to allow the EVM to interface with the system and host. The TPS61260EVM-673 converter is programmed from the factory to deliver a 3.3-Vdc output voltage for a continuous load of up to (...)

使用指南: PDF
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TPS61260EVM-673 Gerbers

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