전원 관리 선형 및 저손실(LDO) 레귤레이터

LP3997

활성

250mA, 저손실 전압 레귤레이터(전원 양호 및 활성화 지원)

제품 상세 정보

Output options Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Fixed output options (V) 3.3 Noise (µVrms) 100 Iq (typ) (mA) 0.055 Thermal resistance θJA (°C/W) 210 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 140 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Fixed output options (V) 3.3 Noise (µVrms) 100 Iq (typ) (mA) 0.055 Thermal resistance θJA (°C/W) 210 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 140 Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Low 140-mV Dropout at 250-mA Load
  • Stable With Ceramic Capacitor.
  • Low Noise With Bypass Capacitor
  • Less Than 80 µA Typical IQ at 250 mA
  • Virtually Zero IQ (Disabled)
  • Thermal and Short Circuit Protection
  • 3.3-V Output For other voltage options, contact your TI sales office
  • 8-Lead VSSOP Package For other package options, contact your TI sales office.

All trademarks are the property of their respective owners.

  • Low 140-mV Dropout at 250-mA Load
  • Stable With Ceramic Capacitor.
  • Low Noise With Bypass Capacitor
  • Less Than 80 µA Typical IQ at 250 mA
  • Virtually Zero IQ (Disabled)
  • Thermal and Short Circuit Protection
  • 3.3-V Output For other voltage options, contact your TI sales office
  • 8-Lead VSSOP Package For other package options, contact your TI sales office.

All trademarks are the property of their respective owners.

The LP3997 regulator is designed to meet the requirements of portable, battery-powered systems, providing accurate output voltage, low noise, and low quiescent current. The LP3997 provides 3.3V output at up to 250mA load current. The chip architecture is capable of providing output voltages as low as 0.8V. When switched in shutdown mode, the power consumption is virtually zero.

The LP3997 is designed to be stable with space saving ceramic output capacitor as small as 1µF.

The LP3997 also includes an out-of-regulation error flag. When the output is more than 5% below its nominal voltage, the error flag sets to low. If a capacitor is connected to device’s delay pin, a delayed power-on reset signal will be generated.

The LP3997 regulator is designed to meet the requirements of portable, battery-powered systems, providing accurate output voltage, low noise, and low quiescent current. The LP3997 provides 3.3V output at up to 250mA load current. The chip architecture is capable of providing output voltages as low as 0.8V. When switched in shutdown mode, the power consumption is virtually zero.

The LP3997 is designed to be stable with space saving ceramic output capacitor as small as 1µF.

The LP3997 also includes an out-of-regulation error flag. When the output is more than 5% below its nominal voltage, the error flag sets to low. If a capacitor is connected to device’s delay pin, a delayed power-on reset signal will be generated.

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기술 문서

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모두 보기2
유형 직함 날짜
* Data sheet LP3997 Micropower 250mA CMOS LDO Regulator with Error Flag / Power-On-Reset datasheet (Rev. B) 2013/05/03
Application note AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) 2013/04/26

설계 및 개발

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패키지 다운로드
VSSOP (DGK) 8 옵션 보기

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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