TPS62148
- Output voltage accuracy ± 1% over specified TJ range (PWM mode)
- Input voltage range: 3 V to 17 V
- Quiescent current 18-µA typical
- Output voltage from 0.8 V to 12 V
- Adjustable soft start
- Forced PWM or PWM/PFM operation
- Switching frequency of 1.25 MHz or 2.5 MHz in forced PWM
- Precise ENABLE input allows
- User-defined undervoltage lockout
- Exact sequencing
- 100% duty cycle mode
- Automatic efficiency enhancement AEE
- DCS-Control topology
- Active output discharge (TPS62148)
- HICCUP overcurrent protection (TPS62147)
- Power-good output
- Available in 2-mm × 3-mm VQFN package
The TPS62147 and TPS62148 are high efficiency and easy-to-use synchronous step-down DC/DC converters, based on the DCS-Control Topology. The wide input voltage range of 3-V to 17-V make the devices suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 2-A continuous output current. The devices automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the devices are well suited for applications that require connected standby performance, like industrial PC and video surveillance. With the MODE pin set to low, the switching frequency is adapted automatically based on the output current and also on input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE) and maintains high conversion efficiency over the whole operation range. TPS62147, TPS62148 provide a 1% output voltage accuracy in PWM mode and therefore enable the design of a power supply with high output voltage accuracy. The FSEL pin allows to set a switching frequency in forced PWM mode of 1.25 MHz or 2.5 MHz, respectively.
The typical quiescent current is 18 µA. In shutdown mode, the current is typically 1 µA.
The devices are available as an adjustable version, packaged in a 3-mm × 2-mm VQFN package.
관심 가지실만한 유사 제품
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS62147, TPS62148 High-Accuracy, 3-V to 17-V, 2-A Step-Down Converter with DCS-Control datasheet (Rev. B) | PDF | HTML | 2023/02/02 |
| Application note | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 2021/07/26 | |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021/04/08 | ||
| Analog Design Journal | Methods of output-voltage adjustment for DC/DC converters | 2019/06/14 | ||
| Application note | Solve Point-of-Load Power Design Challenges: Single Board Computer Applications | 2018/08/24 | ||
| Analog Design Journal | Understanding 100% mode in low-power DC/DC converters | 2018/06/22 | ||
| Technical article | Output accuracy varies with temperature – 1% is not always 1% | PDF | HTML | 2018/05/02 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS62148EVM-034 — fSEL 기능을 지원하는 17V 입력, 2A 출력, 스텝다운 컨버터 평가 모듈
TPS62148EVM-034는 사용자가 TPS62148 DC/DC 컨버터의 작동과 기능을 쉽게 평가하고 테스트할 수 있도록 설계되었습니다. 이 EVM은 최대 2A의 출력 전류에서 3V~17V의 입력 전압을 3.3V의 조정 출력 전압으로 변환합니다. TPS62148은 1MHz의 공칭 스위칭 주파수로 작동하며 소형 2.0 x 3.0mm² QFN 패키지로 제공됩니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN-HR (RGX) | 11 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.