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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS6126x 0.8-V Input Synchronous Boost Converters with 100-mA Output Current datasheet (Rev. C) | PDF | HTML | 23 Apr 2018 |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 06 Dec 2023 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 11 Dec 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| Application note | Five Steps to a Good PCB Layout of the Boost Converter | PDF | HTML | 03 May 2016 | |
| Application note | Design of UVLO for LM27313 (Rev. B) | 08 Apr 2014 | ||
| User guide | TPS6126X User's Guide (Rev. B) | 12 Sep 2013 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 17 Jun 2011 | ||
| User guide | TPS6126x, Low-Input Voltage, Boost Converter Evaluation Module | 08 Jun 2011 |
For additional terms or required resources, click any title below to view the detail page where available.
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DRV) | 6 | Ultra Librarian |
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