LP2950-N
- Input Voltage Range: 2.3 V to 30 V
- 5-V, 3-V, and 3.3-V Output Voltage Versions Available
- High Accuracy Output Voltage
- Ensured 100-mA Output Current
- Extremely Low Quiescent Current
- Low Dropout Voltage
- Extremely Tight Load and Line Regulation
- Very Low Temperature Coefficient
- Use as Regulator or Reference
- Needs Minimum Capacitance for Stability
- Current and Thermal Limiting
- Stable With Low-ESR Output Capacitors (10 mΩ to 6 Ω)
- LP2951-N Versions Only:
- Error Flag Warns of Output Dropout
- Logic-Controlled Electronic Shutdown
- Output Programmable From 1.24 V to 29 V
The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 µA typical) and very low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the device increases only slightly in dropout, prolonging battery life.
Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.
One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors.
The LP2950-N is available in the surface-mount TO-252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8-pin LP2951-N is available in plastic, ceramic dual-in-line, WSON, or metal can packages and offers additional system functions.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LP295x-N Series of Adjustable Micropower Voltage Regulators datasheet (Rev. Q) | PDF | HTML | 2017/12/08 |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/06/27 | ||
| Application note | AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) | 2013/04/23 | ||
| Application note | TO-92 Packing Options / Ordering Instructions (Rev. A) | 2010/06/23 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
MLTLDO2EVM-037 — DCY, DDA 및 KVU 패키지용 범용 LDO 선형 전압 레귤레이터 평가 모듈
엔지니어들은 MLTLDO2EVM-037 멀티패키지 저 드롭아웃(LDO) 평가 모듈(EVM)을 이용해 자체 회로 애플리케이션의 가능한 사용 용도로 여러 일반 패키지의 선형 레귤레이터의 작동과 성능을 평가할 수 있습니다. 이 EVM 구성에는 엔지니어가 부품을 솔더 및 평가할 수 있도록 DDA, 3핀 및 5핀 KVU, DCY 패키지 풋프린트가 포함되어 있습니다.
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| TO-252 (NDP) | 3 | 옵션 보기 |
| TO-92 (LP) | 3 | 옵션 보기 |
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.