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

LP3893

활성

활성화를 지원하는 3A, 저손실 전압 레귤레이터

지금 주문
데이터시트

LP3893

활성
데이터시트 지금 주문

제품 상세 정보

Output options Fixed Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 1.47 Vout (max) (V) 1.2 Vout (min) (V) 1.2 Fixed output options (V) 1.2 Noise (µVrms) 150 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 40 Rating Catalog Load capacitance (min) (µF) 33 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 270 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 1.47 Vout (max) (V) 1.2 Vout (min) (V) 1.2 Fixed output options (V) 1.2 Noise (µVrms) 150 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 40 Rating Catalog Load capacitance (min) (µF) 33 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 270 Operating temperature range (°C) -40 to 125
TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Ultra Low Dropout Voltage (270 mV at 3A typ)
  • Low Ground Pin Current
  • Load Regulation of 0.04%/A
  • 60 nA Typical Quiescent Current in Shutdown
  • 1.5% Output Accuracy (25°C)
  • TO-220, DDPAK/TO-263 Packages
  • Over Temperature/Over Current Protection
  • −40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

  • Ultra Low Dropout Voltage (270 mV at 3A typ)
  • Low Ground Pin Current
  • Load Regulation of 0.04%/A
  • 60 nA Typical Quiescent Current in Shutdown
  • 1.5% Output Accuracy (25°C)
  • TO-220, DDPAK/TO-263 Packages
  • Over Temperature/Over Current Protection
  • −40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

The LP3893 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.

Dropout Voltage: 270 mV (typ) at 3A load current.

Ground Pin Current: 3 mA (typ) at full load.

Shutdown Current: 60 nA (typ) when S/D pin is low.

Precision Output Voltage: 1.5% room temperature accuracy.

The LP3893 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.

Dropout Voltage: 270 mV (typ) at 3A load current.

Ground Pin Current: 3 mA (typ) at full load.

Shutdown Current: 60 nA (typ) when S/D pin is low.

Precision Output Voltage: 1.5% room temperature accuracy.
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기술 문서

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모두 보기1
유형 직함 날짜
* Data sheet LP3893 3A Fast-Response Ultra Low Dropout Linear Regulators datasheet (Rev. B) 2013/04/02

설계 및 개발

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패키지 핀 다운로드
TO-263 (KTT) 5 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

지원 및 교육

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포럼 주제 모두 보기(영문)

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