홈 전원 관리 선형 및 저손실(LDO) 레귤레이터
홈
전원 관리
선형 및 저손실(LDO) 레귤레이터

LP2950

활성

저 IQ, 100mA, 30V, 저손실 전압 레귤레이터

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS709 활성 역전류 방지 및 활성화를 지원하는 150mA, 30V, 초저 IQ, 저손실 전압 레귤레이터 Lower Iq

LP2950

활성
데이터시트 지금 주문

제품 상세 정보

Output options Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 100 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 97 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 PSRR at 100 KHz (dB) 57 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 100 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 97 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 PSRR at 100 KHz (dB) 57 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
TO-92 (LP) 3 19.136 mm² 5.2 x 3.68
  • Wide Input Range: Up to 30 V
  • Rated Output Current of 100 mA
  • Low Dropout: 380 mV (Typ) at 100 mA
  • Low Quiescent Current: 75 µA (Typ)
  • Tight Line Regulation: 0.03% (Typ)
  • Tight Load Regulation: 0.04% (Typ)
  • High VO Accuracy
    • 1.4% at 25°C
    • 2% Over Temperature
  • Can Be Used as a Regulator or Reference
  • Stable With Low ESR (>12 mΩ) Capacitors
  • Current- and Thermal-Limiting Features
  • LP2950 Only (3-Pin)
    • Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
  • LP2951 Only (8-Pin Package)
    • Fixed- or Adjustable-Output Voltages:
      5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ
    • Low-Voltage Error Signal on Falling Output
    • Shutdown Capability
    • Remote Sense Capability for Optimal Output
      Regulation and Accuracy
  • Wide Input Range: Up to 30 V
  • Rated Output Current of 100 mA
  • Low Dropout: 380 mV (Typ) at 100 mA
  • Low Quiescent Current: 75 µA (Typ)
  • Tight Line Regulation: 0.03% (Typ)
  • Tight Load Regulation: 0.04% (Typ)
  • High VO Accuracy
    • 1.4% at 25°C
    • 2% Over Temperature
  • Can Be Used as a Regulator or Reference
  • Stable With Low ESR (>12 mΩ) Capacitors
  • Current- and Thermal-Limiting Features
  • LP2950 Only (3-Pin)
    • Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
  • LP2951 Only (8-Pin Package)
    • Fixed- or Adjustable-Output Voltages:
      5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ
    • Low-Voltage Error Signal on Falling Output
    • Shutdown Capability
    • Remote Sense Capability for Optimal Output
      Regulation and Accuracy

The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.

The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.
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기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기16
유형 직함 날짜
* Data sheet LP295x Adjustable Micropower Voltage Regulators with Shutdown datasheet (Rev. I) PDF | HTML 2014/11/12
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020/08/18
Application note ESR, Stability, and the LDO Regulator (Rev. A) 2020/01/07
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017/08/09
Application note AN-1815 LDOs Ease the Stress of Start-Up (Rev. A) 2013/04/24
Application note 3.6V – 5.5V Input, LDO Reference Design for MSP430 (Rev. A) 2010/06/14
Application note 3.6V – 5.5V Input, LDO with Dual-Level Output Reference Design for MSP430 (Rev. A) 2010/06/14
Application note Packaging Limits Range of Linear Regulators 2010/05/08
Application note Simple Power Solution Using LDOs for the DM365 (Rev. A) 2009/09/11
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 2008/06/04
Application note Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A) 2006/10/13
Application note Understanding LDO Dropout 2005/05/09
Application note Extending the Input Voltage Range of an LDO Regulator 2002/08/16
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 1999/10/21
Application note Technical Review of Low Dropout Voltage Regulator Operation And Performance 1999/08/30
Application brief Low Power 150-mA LDO Linear Regulators. Extended Output Voltage Adjustment Range 1999/06/11

설계 및 개발

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시뮬레이션 모델

LP2950-33 PSpice Transient Model

SLVM953.ZIP (22 KB) - PSpice Model
다운로드
패키지 핀 다운로드
TO-92 (LP) 3 옵션 보기
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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

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