TPS60125
- High Average Efficiency Over Input Voltage Range Because of Special Switching Topology
- Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V
- Regulated 3.3-V or 3-V ±4% Output Voltage
- No Inductors Required, Low EMI
- Only Four External Components Required
- 55-uA Quiescent Supply Current
- 0.05-uA Shutdown Current
- Load Disconnected in Shutdown
- Integrated Low Battery and Power Good Detectors
- Evaluation Module Available (TPS60120EVM-142)
- Applications
- Applications Powered by Two Battery Cells
- Portable Instruments
- Battery-Powered Microprocessor Systems
- Miniature Equipment
- Backup-Battery Boost Converters
- PDAs, Organizers, Laptops
- MP-3 Portable Audio Players
- Handheld Instrumentation
- Medical Instruments (e.g., Glucose Meters)
- Cordless Phones
PowerPAD is a trademark of Texas Instruments Incorporated.
The TPS6012x step-up, regulated charge pumps generate a 3.3-V or 3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage (two alkaline, NiCd, or NiMH batteries). They can deliver an output current of at least 200 mA (100 mA for the TPS60122 and TPS60123), all from a 2-V input. Four external capacitors are needed to build a complete high efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 1.5x or doubler conversion mode. From a 2-V input, all ICs can start with full load current.
The devices feature the power-saving pulse-skip mode to extend battery life at light loads. TPS60120, TPS60122, and TPS60124 include a low battery comparator. TPS60121, TPS60123, and TPS60125 feature a power-good output. The logic shutdown function reduces the supply current to a maximum of 1uA and disconnects the load 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 low concern. It is available in the small, thermally enhanced 20-pin PowerPADTM package (PWP).
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Regulated 200-mA High Efficiency Charge Pump DC/DC Converter datasheet (Rev. B) | 2000年 8月 8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 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
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