TPS61005
- Start-Up Into a Full Load With Supply Voltages as
Low as 0.9 V Over Full Temperature Range - Minimum 100-mA Output Current From 0.8-V
Supply Voltage, 250 mA From 1.8 V - High Power Conversion Efficiency, up to 90%
- Power-Save Mode for Improved Efficiency at Low
Output Currents - Device Quiescent Current Less Than 50 µA
- Added System Security With Integrated Low-
Battery Comparator - Low-EMI Converter (Integrated Antiringing Switch
Across Inductor) - Micro-Size 10-Pin MSOP Package
- Evaluation Modules Available
(TPS6100xEVM–156)
The TPS6100x devices are boost converters intended for systems that are typically operated from a single- or dual-cell nickel-cadmium (NiCd), nickel-metal hydride (NiMH), or alkaline battery. The converter output voltage can be adjusted from 1.5 V to a maximum of 3.3 V and provides a minimum output current of 100 mA from a single battery cell and 250 mA from two battery cells. The converter starts up into a full load with a supply voltage of 0.9 V and stays in operation with supply voltages as low as 0.8 V.
The converter is based on a fixed-frequency, current-mode pulse-width-modulation (PWM) controller that goes into power-save mode at low load currents. The current through the switch is limited to a maximum of 1100 mA, depending on the output voltage. The current sense is integrated to further minimize external component count. The converter can be disabled to minimize battery drain when the system is put into standby.
A low-EMI mode is implemented to reduce interference and radiated electromagnetic energy that is caused by the ringing of the inductor when the inductor discharge-current decreases to zero. The device is packaged in the space-saving 10-pin MSOP package.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS6100x Single- and Dual-Cell Boost Converter With Start-up Into Full Load datasheet (Rev. D) | PDF | HTML | 2015年 8月 31日 |
| Application note | Basic Calculation of a Boost Converter's Power Stage (Rev. D) | PDF | HTML | 2022年 10月 28日 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||
| Application note | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017年 11月 29日 | ||
| Application note | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017年 6月 15日 | ||
| Application note | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011年 9月 19日 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 2011年 6月 17日 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 2006年 9月 15日 |
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