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

LP38853

활성

활성화를 지원하는 3A, 낮은 입력 전압(1.04V), 조정 가능 초저손실 전압 레귤레이터

지금 주문
데이터시트

LP38853

활성
데이터시트 지금 주문

제품 상세 정보

Output options Adjustable Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 1.04 Vout (max) (V) 1.8 Vout (min) (V) 0.8 Noise (µVrms) 150 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 34 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 1.04 Vout (max) (V) 1.8 Vout (min) (V) 0.8 Noise (µVrms) 150 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 34 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 35 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 TO-220 (NDZ) 7 82.6008 mm² 10.16 x 8.13 TO-263 (KTW) 7 153.924 mm² 10.1 x 15.24
  • Wide VBIAS Supply Operating Range: 3 V to 5.5 V
  • Adjustable VOUT Range: 0.8 V to 1.8 V
  • Dropout Voltage of 240 mV (Typical) at 3-A Load Current
  • Precision VADJ Across All Line and Load Conditions:
    • ±1.5% VADJ for TJ = 25°C
    • ±2% VADJ for 0°C ≤ TJ ≤ +125°C
    • ±3% VADJ for –40°C ≤ TJ ≤ +125°C
  • Overtemperature and Overcurrent Protection
  • Stable with 10-µF Ceramic Capacitors
  • −40°C to +125°C Operating Junction Temperature Range
  • Wide VBIAS Supply Operating Range: 3 V to 5.5 V
  • Adjustable VOUT Range: 0.8 V to 1.8 V
  • Dropout Voltage of 240 mV (Typical) at 3-A Load Current
  • Precision VADJ Across All Line and Load Conditions:
    • ±1.5% VADJ for TJ = 25°C
    • ±2% VADJ for 0°C ≤ TJ ≤ +125°C
    • ±3% VADJ for –40°C ≤ TJ ≤ +125°C
  • Overtemperature and Overcurrent Protection
  • Stable with 10-µF Ceramic Capacitors
  • −40°C to +125°C Operating Junction Temperature Range

The LP38853 is a high-current, fast-response regulator that can maintain output voltage regulation with extremely low 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 NMOS power transistor; VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the device 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 NMOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of this device makes it suitable for use in powering DSP and microcontroller core voltages, and switch-mode power-supply post regulators. Dropout Voltage: 240 mV (typical) at 3-A load current Low Ground Pin Current: 10 mA (typical) at 3-A load currentSoft Start: Programmable soft-start time

For all available packages, see the orderable addendum at the end of the data sheet.

The LP38853 is a high-current, fast-response regulator that can maintain output voltage regulation with extremely low 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 NMOS power transistor; VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the device 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 NMOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of this device makes it suitable for use in powering DSP and microcontroller core voltages, and switch-mode power-supply post regulators. Dropout Voltage: 240 mV (typical) at 3-A load current Low Ground Pin Current: 10 mA (typical) at 3-A load currentSoft Start: Programmable soft-start time

For all available packages, see the orderable addendum at the end of the data sheet.
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기술 문서

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모두 보기7
유형 직함 날짜
* Data sheet LP38853 3-A Fast-Response High-Accuracy Adjustable LDO Linear Regulator With Enable and Soft Start datasheet (Rev. F) PDF | HTML 2016/11/04
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019/06/27
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018/03/21
EVM User's guide AN-1504 LP38853S-ADJ Evaluation Board (Rev. C) 2013/04/24
EVM User's guide AN-1560 LP38852MR-ADJ Evaluation Board (Rev. B) 2013/04/24
Application note AN-1815 LDOs Ease the Stress of Start-Up (Rev. A) 2013/04/24

설계 및 개발

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

패키지 핀 다운로드
HSOIC (DDA) 8 옵션 보기
TO-220 (NDZ) 7 옵션 보기
TO-263 (KTW) 7 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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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