The TPS6125x device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS6125x supports up to 800-mA load current from a battery discharged as low as 2.65V and allows the use of low cost chip inductor and capacitors.
With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.
The TPS6125x operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.
In addition, the TPS6125x device can also maintain its output biased at the input voltage level. In this mode, the synchronous rectifier is current limited allowing external load (e.g. audio amplifier) to be powered with a restricted supply. In this mode, the quiescent current is reduced to 21 µA. During shutdown, the load is completely disconnected from the battery. Input current in shutdown mode is less than 1 µA (typ), which maximizes battery life.
The TPS6125x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS6125x 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging datasheet (Rev. G) | PDF | HTML | 16 Jun 2016 |
| Application note | 스트컨버터의 전력계 기본 계산 (Rev. D) | PDF | HTML | 21 Nov 2022 | |
| Application note | Basic Calculation of a Boost Converter's Power Stage (Rev. D) | PDF | HTML | 28 Oct 2022 | |
| 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 | |
| EVM User's guide | TPS6125xEVM-766, 3.5-MHZ HIGH EFFICIENCY STEP-UP CONVERTER IN CHIP SCALE | 30 May 2012 | ||
| EVM User's guide | TPS6125xEVM User Guide | 18 Sep 2011 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 17 Jun 2011 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 15 Sep 2006 |
For additional terms or required resources, click any title below to view the detail page where available.
The TPS6125XEVM-711 enables test and evaluation of the Texas Instruments' TPS61254 and TPS61256 (TPS6125x) devices, a series of 3.5-MHz, up to 5.5-V, step-up dc-dc converters. This user's guide includes EVM specifications, the schematic diagram, bill of materials, and board layout. The TPS6125x (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YFF) | 9 | Ultra Librarian |
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