3.5MHz, 1.5A, 92% Efficient Boost Converter with Adjustable Input Current Limit
Product details
Parameters
Package | Pins | Size
Features
- Resistor Programmable Input Current Limit
- ±20% Current Accuracy at 500 mA over
Full Temperature Range - Programmable from 100 mA up to 1500 mA
- ±20% Current Accuracy at 500 mA over
- Up to 92% Efficiency
- VIN Range from 2.3 V to 6.0 V
- Power Good Indicates Appropriate Output Voltage Level
- Adjustable Output Voltage up to 6.5 V
- 100% Duty-Cycle Mode When VIN > VOUT
- Load Disconnect and Reverse Current Protection
- Short Circuit Protection
- Typical Operating Frequency 3.25 MHz
- Available in a 2-mm × 2-mm WSON-8 Package
- APPLICATIONS
- USB Host Supplies from a Single Li-Ion Battery
- Current Limited Applications
- Li-Ion Applications
- Audio Applications
- RF-PA Buffer
All other trademarks are the property of their respective owners
Description
The TPS61252 device provides a power supply solution for products powered by either a three-cell alkaline, NiCd or NiMH battery, or an one-cell Li-Ion or Li-polymer battery. The wide input voltage range is ideal to power portable applications like mobile phones or computer peripherals. The device has a resistor programmable (RILIM) input current limit and is suitable for a wide variety of applications.
During light loads, the device automatically enters skip mode (PFM), which allows the converter to maintain the required output voltage, while only drawing 30 µA quiescent current from the battery. This allows maximum efficiency at lowest quiescent currents.
TPS61252 allows the use of small inductors and capacitors to achieve a small solution size. The possibility to reduce the current limit by a external resistor offers the potential use of physically even smaller inductors with lower rated currents to further reduce total solution sizes of the power supply. During shutdown, the load is completely disconnected from the battery. The TPS61252 is available in a 8-pin WSON package measuring 2 mm × 2 mm (DSG).
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS61252 Tiny 1.5-A Boost Converter With Adjustable Input Current Limit datasheet (Rev. A) | Dec. 24, 2014 |
| Application notes | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | Dec. 11, 2018 | |
| Application notes | QFN and SON PCB Attachment (Rev. B) | Aug. 24, 2018 | |
| Selection guides | Low-Power DC/DC Converter Overview Guide (Rev. D) | Feb. 09, 2017 | |
| Application notes | Calculating and Measuring the No Load Input Current of the Boost Converter | Sep. 23, 2016 | |
| Application notes | Five Steps to a Good PCB Layout of the Boost Converter | May 03, 2016 | |
| Application notes | Design considerations for a resistive feedback divider in a DC/DC converter | Apr. 26, 2012 | |
| Application notes | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | Sep. 19, 2011 | |
| Application notes | IQ: What it is, what it isn’t, and how to use it | Jun. 17, 2011 | |
| User guides | TPS61252 Evaluation Module | Aug. 26, 2010 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
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Features
- Includes all required support circuitry for ADS114S08
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily accessible signals via test points and headers
Description
The ADS122C04 evaluation module (EVM) is a platform for evaluating the ADS122C04 analog-to-digital converter (ADC). The ADS122C04 is a 24-bit, 2-kSPS, 4-channel, low-power delta-sigma ADC with an I2C interface for sensor measurement and process control applications. The ADS122C04 also includes an (...)
Features
- Includes all required support circuitry for ADS122C04
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily accessible signals via test points and headers
Description
The ADS122U04 evaluation module (EVM) is a platform for evaluation of the ADS122U04 analog-to-digital converter (ADC). The ADS122U04 is a 24-bit, 2-kSPS, 4-channel, low-power delta-sigma ADC with a UART interface for sensor measurement and process control applications. The ADS122U04 also includes an (...)
Features
- Includes all required support circuitry for ADS122U04
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily accessible signals via test points and headers
Description
The ADS1235 evaluation module (EVM) is a platform for evaluating the ADS1235 analog-to-digital converter (ADC). ADS1235 is a low-drift, 24-bit, 7200-SPS, 6-channel delta-sigma (ΔΣ) ADC with an integrated PGA for low-noise bridge measurements. This sensor-ready ADC provides a (...)
Features
- Includes all required support circuitry for ADS1235
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily-accessible signals via test points and headers
Description
Features
- Includes all required support circuitry for the ADS124S08
- Delta-Sigma ADC EvaluaTIon software enables quick configuration and analysis
- Configurable inputs, references, supplies and clock sources
- Easily accessible signals via test points and headers
Description
The ADS1261 evaluation module (EVM) is a platform for evaluating the ADS1261 analog-to-digital converter (ADC). ADS1261 is a low-drift, 24-bit, 40-kSPS, 10-channel delta-sigma (ΔΣ) ADC with an integrated PGA, voltage reference, and internal fault monitors. This sensor-ready ADC provides (...)
Features
- Includes all required support circuitry for ADS1261
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily-accessible signals via test points and headers
Description
The ADS127L01EVM is an evaluation platform for the ADS127L01. The ADS127L01 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with data rates up to 512 kSPS. It offers a unique combination of excellent dc accuracy and outstanding ac perforamnce. The high-order, chopper-stabilized modulator (...)
Features
- Includes all require support circuitry for the ADS127L01
- Enhanced evaluation software enables quicker configuration and analysis
- Configurable inputs, references, supplies and clock sources
- Easily accessible signals via testpoints and headers
Description
The ADS1119 BoosterPack™ plug-in module is a platform for evaluating the ADS1119 analog-to-digital converter (ADC). ADS1119 is a 16-bit, 1-kSPS, 4-channel, low-power, delta-sigma ADC with an I2C interface for sensor measurement and process control applications. ADS1119 also includes an integrated (...)
Features
- Configurable inputs, references, and supplies
- Easily-accessible signals via test points and headers
- Pairs with MSP-EXP432E401Y LaunchPad Development Kit
Description
The ADS1219 BoosterPack™ plug-in module is a platform for evaluating the ADS1219 analog-to-digital converter (ADC). ADS1219 is a 24-bit, 1-kSPS, 4-channel, low-power, delta-sigma ADC with an I2C interface for sensor measurement and process control applications. ADS1219 also includes an integrated (...)
Features
- Configurable inputs, references, and supplies
- Easily-accessible signals via test points and headers
- Pairs with MSP-EXP432E401Y LaunchPad Development Kit
Description
Evaluation Module Board for 3.25 MHz, up to 6.5 V, Step-up (Boost) DC-DC Converter
TPS61252EVM-667 contains the Texas Instruments 3.25 MHz, up to 6.5 V, Step-up (Boost) DC-DC converter TPS61252 with an adjustable input current limit. The TPS61252 device provides a power supply solution for products (...)
Features
- Resistor Programmable Input Current Limit
- Up to 92% Efficiency
- VIN Range from 2.3 V to 6.0 V
- Power Good Indicates the Appropriate Output Voltage Level
- Adjustable Output Voltage up to 6.5 V
- 100% Duty-Cycle Mode When VIN > VOUT
- Load Disconnect and Reverse Current Protection
- Double-sided, two-active-layer PCB (...)
Design tools & simulation
Reference designs
Design files
-
download TIDA-00669 BOM.pdf (53KB) -
download TIDA-00669 Altium.zip (2496KB) -
download TIDA-00669 Gerber.zip (645KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| WSON (DSG) | 8 | View options |
Ordering & quality
Support & training
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Training series
View all TI training and videosVideos
Power Tips: Layout for a Boost Power Stage
This video shows a simplified schematic and PCB layout for a boost converter
