LP2981-N
- Input Voltage (V IN) Range:
- Legacy chip: 2.1 V to 16 V
- New chip: 2.5 V to 16 V
- Output Voltage (V OUT) Range: 1.2 V to 5.0 V
- Output Voltage (V OUT) Accuracy:
- ±0.75% for A-Grade legacy chip
- ±1.25% for standard-grade legacy chip
- ±0.5% for new chip (A grade and standard grade)
- Output Voltage (V OUT) accuracy over load, and temperature: ±1% (new chip)
- Output current: Up to 100 mA
- Low I Q (new chip): 69 µA at I LOAD = 0 mA
- Low I Q (new chip): 620 µA at I LOAD = 100 mA
- Shutdown current over temperature:
- < 1 µA (legacy chip)
- ≤ 1.75 µA (new chip)
- Output current limiting and thermal protection
- Stable with 2.2-µF ceramic capacitors (new chip)
- High PSRR (new chip):
- 75 dB at 1 kHz, 45 dB at 1 MHz
- Operating junction temperature: –40°C to +125°C
- Package: 5-pin SOT-23 (DBV)
The LP2981-N is a fixed-output, low-dropout (LDO) voltage regulator supporting an input voltage range from 2.5 V to 16 V (for new chip only) and up to 100 mA of load current. The LP2981-N supports an output range of 1.2 V to 5.0 V (new chip).
Additionally, the LP2981-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.
In the new chip, wide bandwidth PSRR performance is 75 dB at 1 kHz and 45 dB at 1 MHz to help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.
The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LP2981-N 100-mA, Low-Dropout Regulator in SOT-23 Package datasheet (Rev. O) | PDF | HTML | 2023/12/06 |
Application note | AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) | 2013/04/25 | ||
Application note | AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) | 2013/04/23 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23 (DBV) | 5 | 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
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