전원 관리 선형 및 저손실(LDO) 레귤레이터

LM2991QML

활성

음극 저손실 조정 가능 레귤레이터

제품 상세 정보

Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 0.3 Vin (min) (V) -26 Vout (max) (V) -3 Vout (min) (V) -24 Fixed output options (V) 0 Rating Military Noise (µVrms) 200 PSRR at 100 KHz (dB) 22 Iq (typ) (mA) 0.7 Thermal resistance θJA (°C/W) 28 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -55 to 125
Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 0.3 Vin (min) (V) -26 Vout (max) (V) -3 Vout (min) (V) -24 Fixed output options (V) 0 Rating Military Noise (µVrms) 200 PSRR at 100 KHz (dB) 22 Iq (typ) (mA) 0.7 Thermal resistance θJA (°C/W) 28 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -55 to 125
CFP (NAC) 16 62.9285 mm² 9.91 x 6.35 DIESALE (Y) See data sheet WAFERSALE (YS) See data sheet

  • Output voltage adjustable from −2V to −25V
  • Output current in excess of 1A
  • Dropout voltage typically 0.6V at 1A load
  • Low quiescent current
  • Internal short circuit current limit
  • Internal thermal shutdown with hysteresis
  • TTL, CMOS compatible ^ON/OFF switch
  • Functional complement to the LM2941 series

  • Output voltage adjustable from −2V to −25V
  • Output current in excess of 1A
  • Dropout voltage typically 0.6V at 1A load
  • Low quiescent current
  • Internal short circuit current limit
  • Internal thermal shutdown with hysteresis
  • TTL, CMOS compatible ^ON/OFF switch
  • Functional complement to the LM2941 series

  • The LM2991 is a low dropout adjustable negative regulator with a output voltage range between −2V to −25V. The LM2991 provides up to 1A of load current and features a ^On /Off pin for remote shutdown capability.

    The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current and low temperature coefficient precision reference. The dropout voltage at 1A load current is typically 0.6V and a guaranteed worst-case maximum of 1V over the entire operating temperature range. The quiescent current is typically 1 mA with a 1A load current and an input-output voltage differential greater than 3V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VO − VI  3V).

    The LM2991 is short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when inadvertently overloaded for extended periods.


    The LM2991 is a low dropout adjustable negative regulator with a output voltage range between −2V to −25V. The LM2991 provides up to 1A of load current and features a ^On /Off pin for remote shutdown capability.

    The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current and low temperature coefficient precision reference. The dropout voltage at 1A load current is typically 0.6V and a guaranteed worst-case maximum of 1V over the entire operating temperature range. The quiescent current is typically 1 mA with a 1A load current and an input-output voltage differential greater than 3V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VO − VI  3V).

    The LM2991 is short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when inadvertently overloaded for extended periods.


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    기술 자료

    star =TI에서 선정한 이 제품의 인기 문서
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    3개 모두 보기
    유형 직함 날짜
    * Data sheet LM2991QML Negative Low Dropout Adjustable Regulator datasheet (Rev. A) 2011/10/05
    * SMD LM2991QML SMD 5962-96505 2016/06/21
    More literature Die D/S LM2991 MD8 Negative Low Dropout Adj Regulator 2012/09/20

    설계 및 개발

    추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

    패키지 CAD 기호, 풋프린트 및 3D 모델
    CFP (NAC) 16 Ultra Librarian
    DIESALE (Y)
    WAFERSALE (YS)

    주문 및 품질

    포함된 정보:
    • RoHS
    • REACH
    • 디바이스 마킹
    • 납 마감/볼 재질
    • MSL 등급/피크 리플로우
    • MTBF/FIT 예측
    • 물질 성분
    • 인증 요약
    • 지속적인 신뢰성 모니터링
    포함된 정보:
    • 팹 위치
    • 조립 위치

    권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

    지원 및 교육

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