TPS61222
- Up to 95% Efficiency at Typical Operating
Conditions - 5.5 µA Quiescent Current
- Startup Into Load at 0.7 V Input Voltage
- Operating Input Voltage from 0.7 V to 5.5 V
- Pass-Through Function during Shutdown
- Minimum Switching Current 200 mA
- Protections:
- Output Overvoltage
- Overtemperature
- Input Undervoltage Lockout
- Adjustable Output Voltage from 1.8 V to 6 V
- Fixed Output Voltage Versions
- Small 6-pin SC-70 Package
The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current datasheet (Rev. B) | PDF | HTML | 2014. 11. 11 | |
| 애플리케이션 노트 | 스트컨버터의 전력계 기본 계산 (Rev. D) | PDF | HTML | Download English Version (Rev.D) | 2022. 11. 21 | |
| 애플리케이션 노트 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018. 12. 11 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 애플리케이션 노트 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017. 6. 15 | |||
| 애플리케이션 노트 | Five Steps to a Good PCB Layout of the Boost Converter | PDF | HTML | 2016. 5. 3 | ||
| 아날로그 디자인 학술지 | Accurately measuring efficiency of ultralow-IQ devices | 2014. 1. 22 | |||
| 애플리케이션 노트 | Automated Frequency Response Analyzer | 2013. 10. 9 | |||
| 아날로그 디자인 학술지 | Design considerations for a resistive feedback divider in a DC/DC converter | 2012. 4. 26 | |||
| 아날로그 디자인 학술지 | IQ: What it is, what it isn’t, and how to use it | 2011. 6. 17 | |||
| 애플리케이션 노트 | Minimizing Ringing at the Switch Node of a Boost Converter | 2006. 9. 15 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.