TPS61261
- 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.
技術文件
| 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 | 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 | ||
| User guide | TPS6126X User's Guide (Rev. B) | 2013年 9月 12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 |
設計與開發
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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 (...)
TPS61261EVM-208 — TPS61261EVM-208 小型低輸入電壓升壓轉換器評估模組板
Tiny Low Input Voltage Boost (Step-Up) Converter Evaluation Module Board - Step Up
This describes the characteristics, operation, and use of the Texas Instruments TPS61261 evaluation module (EVM). This EVM is designed to help the user easily evaluate and test the operation and functionality of the (...)| 封裝 | 引腳 | 下載 |
|---|---|---|
| WSON (DRV) | 6 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點