TPS60400
- Inverts Input Supply Voltage
- Up to 60-mA Output Current
- Only Three Small 1-µF Ceramic Capacitors Needed
- Input Voltage Range From 1.6 V to 5.5 V
- PowerSave-Mode for Improved Efficiency at Low-Output Currents (TPS60400)
- Device Quiescent Current Typical 65 µA
- Integrated Active Schottky-Diode for Start-up Into Load
- Small 5-Pin SOT-23 Package
- Evaluation Module Available TPS60400EVM-178
The TPS6040x family of devices generates an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power them.
Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
The TPS6040x can deliver a maximum output current of 60 mA with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options with 20-kHz, 50-kHz, and 250-kHz fixed-frequency operation are available. TPS60400 comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 | |
|---|---|---|---|---|---|---|
| * | 데이터 시트 | TPS6040x Unregulated 60-mA Charge Pump Voltage Inverter datasheet (Rev. C) | PDF | HTML | 2020. 11. 10 | ||
| 애플리케이션 노트 | Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) | PDF | HTML | 2022. 5. 23 | |||
| 애플리케이션 노트 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018. 12. 11 | ||||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | ||||
| 기술 문서 | Low-noise charge pumps make it easy to create negative voltages | PDF | HTML | 2017. 8. 30 | |||
| 애플리케이션 노트 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017. 6. 15 | ||||
| 아날로그 디자인 학술지 | Design considerations for a resistive feedback divider in a DC/DC converter | 2012. 4. 26 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
ONET1130EC-EVM — 듀얼 CDR 및 통합 모듈레이터 드라이버를 지원하는 11.7Gbps 트랜시버 평가 모듈
TPS60400EVM-178 — 충전 펌프 인버터(베어 PCB)용 평가 모듈
Need for use: The EVM does not contain any components. The pcb therefore first has to be populated with the appropriate components. A description of different applications that can be tested using the EVM can be found in the TPS60400EVM users guide. Samples of the TPS6040x family can be (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.