LP2957
- 5V Output within 1.4% Over Temperature (A Grade)
- Easily Programmed for Snap-On/Snap-Off Output
- Ensured 250 mA Output Current
- Extremely Low Quiescent Current
- Low Input-Output Voltage Required for Regulation
- Reverse Battery Protection
- Extremely Tight Line and Load Regulation
- Very Low Temperature Coefficient
- Current and Thermal Limiting
- Error Flag Signals when Output is out of Regulation
All trademarks are the property of their respective owners.
The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current).
Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable.
Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.
The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/°C typical).
The accuracy of the 5V output is ensured at room temperature and over the full operating temperature range.
The LP2957 is available in the five-lead TO-220 and DDPAK/TO-263 packages.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LP2957/LP2957A 5V Low-Dropout Regulator for µP Applications datasheet (Rev. C) | 2013. 4. 4 | ||
| 애플리케이션 노트 | AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) | 2013. 4. 23 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| TO-263 (KTT) | 5 | Ultra Librarian |