TPS60141
- Regulated 5 V ±4% Output Voltage
- Up to 100-mA Output Current
- 1.8-V to 3.6-V Input Voltage Range
- 65-µA Quiescent Supply Current
- 0.05-µA Shutdown Current, Battery Is Isolated
From Load in Shutdown - Integrated Low-Battery or Power-Good Indicator
- Low-Output Voltage Ripple Over Complete Output
Current Range - Easy-to-Design With Low-EMI Power Supply
Because No Inductors Are Required - Evaluation Module Available (TPS60140EVM-144)
- Available in a 6.5-mm × 4.4-mm 20-Pin HTSSOP
Package
The TPS6014x step-up, regulated charge pumps generate a 5-V ±4% output voltage from a 1.8-V to 3.6-V input voltage range. The devices are typically powered by two alkaline, NiCd, or NiMH battery cells and provide an output current of minimum 100 mA from a 2-V input. Only four external capacitors are needed to build a complete voltage tripler charge pump.
The devices regulate the output by using the pulse-skip topology. The controller is optimized for lowest output voltage ripple over the complete output current range. The output peak current and therefore the output voltage ripple are drastically reduced compared to a conventional pulse-skip topology by regulating the charge pump output resistance. At light loads the maximum output resistance is limited to assure a low quiescent current.
The TPS60140 includes a low-battery comparator that issues a warning if the battery voltage drops below a user-adjustable threshold voltage. The TPS60141 features a power-good output that goes active when the output voltage reaches 90% of its nominal value.
The logic shutdown function disables the converter, reduces the supply current to a maximum of 1 µA and disconnects the output from the input. Special current-control circuitry prevents excessive current from being drawn from the battery during start-up. This DC/DC converter requires no inductors, therefore, EMI is of little concern. The TPS6014x operates over a free-air temperature range of 40°C to 85°C. It is available in the small, thermally enhanced 20-pin HTSSOP package (PWP).
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS6014x Low Power DC-DC Converter Regulated 5-V, 100-mA Charge Pump Voltage Tripler datasheet (Rev. A) | PDF | HTML | 2015年 11月 24日 |
Application note | Optimizing Resistor Dividers at a Comparator (Rev. B) | PDF | HTML | 2021年 4月 30日 | |
Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||
Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6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 | ||
User guide | TPS6014x Charge Pump Evaluation Module User's Guide | 2000年 3月 2日 |
設計與開發
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
HTSSOP (PWP) | 20 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點